One column of numbers consists of 61, 24, and 47. When the digits of the
numbers are added together, the result is 6 + 1 + 2 + 4 + 4 + 7 = 24, and when
the digits of 24 are then added together, the end result is 2 + 4 = 6. If the
same process is performed on the numbers in a second column, what can De
concluded?
• A. If the end result from the second column is not 6, then the sum of
the numbers in the first column is not equal to the sum of the
numbers in the second column.
B. If the end result from the second column is also 6, then the sum of
the numbers in the first column is equal to the sum of the
numbers in the second column.
C. If the end result from the second column is not 6, then the sum of
the numbers in the first column is equal to the sum of the
numbers in the second column.
D. If the end result from the second column is also 6, then the sum of
the numbers in the first column is not equal to the sum of the
numbers in the
second column.

Answers

Answer 1

Answer:

The question is incomplete because it must content a list of choices to select the right one.

Any way, a conclusion that you can make, and that is a common one for this kind of questions, is about whether the sum of the numbers of the second column may or not be the same sum of the numbers of the first column.

The condition for the two sums be the same is that when the digits of the second column are added together the result be the same obtained for the sum of the digits of the first column. In this case that is 6.

So, the possible answer is:

If the end result from the second column is not 6, then the sum of the numbers in the first column is not equal to the sum of the numbers in the second column.

Step-by-step explanation:

Answer 2

Answer:

  A.  If the end result from the second column is not 6, then the sum of the numbers in the first column is not equal to the sum of the numbers in the second column.

Step-by-step explanation:

You want to know the relationship between the sums of two columns of numbers if the sum of digits of the first column is 6, and the same sum of digits computation is performed on the second column.

Sum of digits

The sum of digits of a number is the modulo-9 value of that number. When a column of numbers is added, the modulo-9 value of the sum will be the sum of the modulo-9 values of the individual numbers.

If 6 is the modulo-9 value of the sum of a column of numbers, another column of numbers will not have the same sum if its modulo-9 value is not also 6.

The description of choice A applies:

If the end result from the second column is not 6, then the sum of the numbers in the first column is not equal to the sum of the numbers in the second column.

__

Additional comment

Here "sum of digits" refers to the process of repeatedly summing the digits of any multi-digit number until the total is in the range 1–9. This is effectively a modulo-9 calculation.

The "modulo-9" value of a number is normally a digit in the range 0–8. For any non-zero number, the sum of digits will be a number in the range 1–9. The sum of digits calculation will give 9 instead of 0 when the modulo-9 value is 0.

Modulo arithmetic is useful for a number of purposes. One of them is checking evaluation of an expression. This process is also referred to as "casting out nines." Casting out nines is a simple time-honored method of checking arithmetic for errors, though it cannot find digit transpositions.


Related Questions

I got the rest of the answers just stuck on these two

Answers

The slope for the first table will be;

⇒ m = - 4/3

The slope for the second table will be;

⇒ m = 1 / 4

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

There are two table is shown in figure.

Now,

For first table;

Two points are,

⇒ (x, y) = (3, -6)  (0, - 2)

Since, The slope of the line passing through the points  (x₁ , y₁) and

(x₂, y₂) will be;

⇒ m = (y₂ - y₁) / (x₂ - x₁)

Hence, Slope for first table;

⇒ m = (- 2 - (-6)) / (0 - 3)

⇒ m = (- 2 + 6) / (-3)

⇒ m = - 4/3

And, For second table;

Two points are,

⇒ (x, y) = (0, -3)  (4, - 2)

Since, The slope of the line passing through the points  (x₁ , y₁) and (x₂, y₂) will be;

⇒ m = (y₂ - y₁) / (x₂ - x₁)

Hence, Slope for second table;

⇒ m = (- 2 - (-3)) / (4 - 0)

⇒ m = (- 2 + 3) / (4)

⇒ m = 1 / 4

Thus, The slope for the first table will be;

⇒ m = - 4/3

The slope for the second table will be;

⇒ m = 1 / 4

Learn more about the equation of line visit:

https://brainly.com/question/18831322

#SPJ1

Determine which integer in the solution set will make the equation true. 8x − 4 = 2(2x + 4)

S: {−4, 0, 3, 12}

Answers

Solving the equation 8x − 4 = 2(2x + 4) the required integer to make the equation true is 3

How to find the integer

The integer required to be found is solved as follows

The given equation is  8x − 4 = 2(2x + 4)

solving for x

8x − 4 = 2(2x + 4)

8x - 4 = 4x + 8

collecting like terms

8x - 4x = 8 + 4

4x = 12

dividing through by 4

x = 3

Learn more about equations at:
https://brainly.com/question/22688504

#SPJ1

In triangle LMN, the measure of angle L is 50° and the measure of angle M 70°. What is the measure of the exterior angle to angle N?

Answers

Answer:

120°

Step-by-step explanation:

The 3 angle measures of a triangle will always equal 180.

Since we've already got two angles, all we need to do is a simple equation to get our missing angle:

180-(50+70)=60

Now that we've got the missing angle, we need to calculate the exterior angle, the thing we're here for. We know (hopefully at this point) that an exterior angle and its interior angle are a linear pair, meaning that the two add up to 180. Knowing this, we can do this equation to finish off the question:

180-60=120

And there's your answer, 120°

There's also a shorter way of doing this, let me know if you'd like to see it. But for now, hope I helped!

A
Given:
O HA
ZC, ZF are rt. Z's; AC= DF, BC= EF
O LA
OLL
B D.
OHL
F
E

Answers

Answer: your question is not very clear

Step-by-step explanation:

5pts and who ever get this right gets brainliest ​

Answers

Answer:D is incorrect

Step-by-step explanation:

D is the only one that is incorrect because D is 9x-81

Answer:

  (d)  9(x -9)

Step-by-step explanation:

You want the expression that is not equivalent to the other three.

Simplified expressions

The simplified versions of the expressions are ...

9(x -1) = 9x -99x -92x -4 +7x -5 = (2+7)x +(-4 -5) = 9x -99(x -9) = 9x -81 . . . . . . . not equivalent to the others

The expression not equivalent to the other three is 9(x -9).

<95141404393>

Elouise and Marcus are 20km apart.
There is a lake due west of Elouise that is also 10√3 km due north of Marcus.
Work out the bearing of Marcus from Elouise

Answers

Elouise and Marcus are 20 km apart. There is a lake due west of Elouise that is also 10√3 km due north of Marcus, so 22.36 km distance the bearing of Marcus from Elouise.

What is Pythagoras theorem?

According to the Pythagoras theorem, the square of the hypotenuse of a right-angled triangle equals the sum of the squares of the other two sides. The formula for this theorem is c² = a² + b², where c is the hypotenuse and a and b are the triangle's two legs. Pythagoras theory triangles are another name for these triangles.

At first assume a triangle, In the triangle, assume Elouise at the point A and Marcus at the point B, and the lake at the C point.

Given that,

Elouise and Marcus are 20 km apart (AB)

There is a lake due west of Elouise that is also 10√3 km due north of Marcus (BC)

Now, according to a Pythagoras theorem,

(AC)² + (AB)² = (BC)²

or, (AC)² = (BC)²- (AB)²

or, (AC)² = (10√3)² - (20)²

or, AC = [tex]\sqrt{500}[/tex]

or, AC = 22.36 km

So, distance bearing of Marcus from Elouise is 22.36 km.

To know more about distance refer to:

https://brainly.com/question/13963928

#SPJ1

let m be the number of five-element subsets that can be chosen from the set of the first 14 natural numbers so that at least two of the five numbers are consecutive. find the remainder when m is divided by 1000.

Answers

We have (123) different possibilities. Therefore, we can derive from the multiplication principle that there are 13(123) ways.

What is probability?

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true.

An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

The likelihood that an event will occur increases with its probability. A straightforward illustration is tossing a fair (impartial) coin.

The chance of both outcomes ("heads" and "tails") is equal because the coin is fair, "heads" is more likely than "tails," there are no other conceivable outcomes, and the likelihood of either outcome is half .

According to our question-

Let n be the maximum number of subsets of five elements that can be selected from the first 14 natural numbers,

with at least two of the five numbers being consecutive.

I have made a block of two consecutive numbers (like (1,2),(2,3),(13,14) etc.).

Now we can choose this block in 13 ways. Now we have to choose 3 numbers from the rest 12 numbers.

Hence,  multiplication principle we come to know that there are  13×(123).

learn more about probability click here:

brainly.com/question/24756209

#SPJ4

Can someone help? Solve for a given that the height of the triangle is 3 centimeters and each of the legs are 6 centimeters. I also need the centimeters please !!

Answers

Answer:

6√3 centimeters

Step-by-step explanation:

This is an isosceles triangle because two of the sides are the same. We can divide this into two triangles to make two right triangles, and use the Pythagorean theorem. The base (a) will be divided by 2.

Pythagorean theorem: a^2 + b^2 = c^2

a and b are the legs of the triangle. c is the hypotenuse.

Let's replace the variables with the given information we know.

The hypotenuse is 6. One of the legs is 3. the other leg is a/2.

3^2 + b^2 = 6^2

9 + b^2 = 36

b^2 = 27

b = √27 = 3√3

Since this was for half of the base, we will multiply it by 2.

3√3 x 2 = 6√3

That is our answer.

I hope this helps.

A car is sold for $80, 000. Every year it loses 1/4 of its value.

a. Write an equation to represent the value of the car after 1 year.

b. Write an equation to represent the value of the car after t years.
A=P(1+ r/n)^n•t

Answers

An equation to represent the value of the car after 1 year is P(t) = 80,000(1 - 0.25)¹.

An equation to represent the value of the car after t years is P(t) = 80,000(1 - 0.25)^t.

How to write this equation?

Generally speaking, a physical asset that loses its value at specific period of time represent an exponential decay. Therefore, a mathematical model for any physical asset (car) that decreases by r percent per unit of time is an exponential equation of this form:

P(t) = I(1 - r)^t

Where:

P(t ) represents the value of car in dollars.t represents the time or number of years.I represents the initial value of car.r represents the decay rate.

Note: 1/4 is equal to 0.25.

For a car that loses 1/4 of its value annually, after 1 year its value is given by;

P(t) = 80,000(1 - 1/4)^1

P(t) = 80,000(1 - 0.25)¹

For a car that loses 1/4 of its value annually, after t year its value is given by;

P(t) = 80,000(1 - 0.25)^t

Read more on exponential functions here: brainly.com/question/28246301

#SPJ1

The sum of 4 times a number and 2 is two times the number minus 8. What is the number?

Answers

Answer:

Step-by-step explanation:

The word "Sum" = addition.

"A number" = the unknown, aka 'x'.

"Is equal to" is =.

Go piece by piece. I will set your equation exactly as it is worded as you read it. Follow along:

4x + (-2) = 5x + (-2)

Imagine there is a "1" infront of the parenthesis around the -2. A positive * a negative always = negative. So.

What is the color red?

Answers

Answer:

red im pretty sure

x, 3, 1, 12, 8 if x is an integer, is the median of the 5 numbers shown greater than the average (arithmetic mean) of the 5 numbers? (1) x > 6 (2) x is greater than the median of the 5 numbers.

Answers

if x is an integer it does not show the median of the 5 numbers to be greater than the average of the 5 numbers

What is a median in math?

The value that, when a dataset is arranged, falls exactly in the center is the median. It is a measure of central tendency that distinguishes between the values' lowest and maximum 50%. Depending on whether you have an odd or an even number of data points, the processes for calculating the median change.

How do you find the median?

Finding the middle number requires sorting all the data points and choosing the center one (or if there are two middle numbers, taking the mean of those two numbers). Example: When the numbers are arranged (1, 4, 7), the number 4 lies in the center, making it the median of 4, 1 and 7.

(1) x must be higher than one or three. It will be the median if it is 8 or fewer.

Consequently, if x = 7, then the list is 1, 3, 7, 8, 12, and median is 7, while the average is 31/5, which equals 6.2, and the answer is YES.

The list is 1, 3, 8, 8, 12, and the median is 8 if x = 8. Average = 32/5 = 6.4; if x = REALLY BIG, the list is 1, 3, 8, 12, and x; and the median is 8; the answer is YES. The answer to the question is NO since the average is REALLY BIG.

insufficient

(2) According to the aforementioned findings, x must be at least 9.

Depending on the amount of x, the list is either 1, 3, 8, x, 12, or 1, 3, 8, x.

The median and mean expressions are the same, regardless of whether order is appropriate:

Mean (average): 8 median = (1 + 3 + 8 + 12 + x)/5 = (24 + x)/5 mean (average):

The mean is at least (24 + 9)/5 = 33/5 = 6.6 since x is at least 9.

This is not convincing because the mean might be either millions or 6.6 (if x = 9) (if x is huge).

insufficient

To find more about median click the following link :-

https://brainly.com/question/26151333

#SPJ4

Can someone please help me with, best answer will be marked brainiest.

Answers

A quadrilateral is a closed shape with four sides and the four angles add up to 360 degrees.

The value of x is 47

The value of y is 10.6

The four angles for the given quadrilateral are,

96, 94, 76, and 94.

What is quadrilateral?

A quadrilateral is a closed shape with four sides and the four angles add up to 360 degrees.

We have,

A an isoceles trapezium.

Where one pair of sides are equal and parallel.

Two angles are equal.

Now,

94 = 2x

x = 47

Now,

The four angles sum is 360.

94 + 94 + 96 + 3y + 44 = 360

328 + 3y = 360

3y = 360 - 328

3y = 32

y = 32/3

y = 10.7

Now,

3y + 44 = 3 x 10.7 + 44 = 32 + 44 = 76

Thus,

The four angles for the given quadrilateral are,

96, 94, 76, and 94.

Learn more about quadrilaterals here:

https://brainly.com/question/13805601

#SPJ1

please help me due in 10 min

Answers

Answer: A = 2(x+3y)+2z=2z+4x+2y

B=2(x+3y)=4x+2y

c=x+3y=2x+y

d=2y=x

Step-by-step explanation:

Answer:

2y=x:D

x+3y=2x+y:C

2(x+3y)=4x+2y:B

2(x+3y)+2z=2z+4x+2y

Step-by-step explanation:

D is the only possibility for 2y=x because it has 3 total. Similarly for C. B only has two different types, so it must be 2(x+3y)=4x+2y.

An arts academy requires there to be 4 teachers for every 72 students and 3 for every 30 students. How many students does the academy have per​ teacher? Per​ tutor? How many tutors does the academy need if it has ​60 students?

Answers

1. The students that the academy have per teacher is 18.

2. The students per tutor will be 10.

3. The tutors that the academy need if it has 60 students is 6 tutors.

How to calculate the number of students?

Given that the arts academy requires there to be 4 teachers for every 72 students and 3 for every 30 students.

The students that the academy have per teacher will be:

= Number if students / Teacher

= 72/4

= 18 students per teacher.

The students per tutor will be:

= 30/3

= 10 students per tutor

The number of tutors for 60 students will be:

= 60 / 10

= 6 tutors.

Learn more about expressions on:

brainly.com/question/723406

#SPJ1

an english reading list has 9 american novels and 7 english novels. a student must read 4 from the list, and at least 2 must be american novels. in how many different ways can the 4 books be selected?

Answers

The total ways in which the student can readd the books are 1512 ways.

What is Combination?

A combination in mathematics is a selection of elements from a set with distinct members, where the order of selection is irrelevant (unlike permutations).

Solution:

Since reading 2 american novels is compulsory

The student therefore needs to read only two more novels

It can be either American Novels or English Novels

Ways to read American Novel = 7C2

Ways to read English Novel = 7C2

Total Ways = 9C2 * (7C2 + 7C2)

Total Ways = 36 * (42)

Total Ways = 1512 ways

To learn more about Combination rfom the given link

https://brainly.com/question/11732255

#SPJ4

What is the equation of a line that has a
3/4
slope of and an x-intercept of 0?

A y=0
B y=3/4
C y=3/4x
D y=x+3/4

Answers

Answer: C

Step-by-step explanation: This is because there is no y - intercept. But since there is still a slope an x but be next to the 3/4. Which represents the rate of change.

Which equation could generate the curve in the graph below?

Answers

Answer:

(Not accurate because I'm estimating amounts) y = ((x-2)/2)^2 + 4

Step-by-step explanation:

Scales horizontally by 2, Shifts up 4, right 2

(9 * 6) * 1 = 3 operations

Answers

Answer:

53

Step-by-step explanation:

PEMDAS

Parenthesis

multiply the numbers

Divide

Add

Subtract

Find the Base & Height of the triangle

Area =42 in^2

Answers

Answer:

Height: 6

Base: 14

Step-by-step explanation:

Area=42 in^2

height=x-1

base=2x

bh/2=42

Substitute in the values:

2x(x-1)/2=42

The 2s cancel out each other.

x(x-1)=42

x^2 - x =42

x^2 - x - 42=0

When we factor that, we get:

(x-7)(x+6)=0

x=7 or x=-6

We will take the positive answer.

height= x-1 = 7-1 = 6

base= 2x = 2(7) = 14

Now let's double check if we are correct.

6(14)/2

=84/2

=42

We are correct!

Answer:

Base: 14 and height: 6 OR Base: -12 and height -7

Step-by-step explanation:

First, set up a proportion. (base x height) divided by 2 on one side and 42 over 1 on the other.

[tex]\frac{2x(x-1)}{2}=\frac{42}{1}[/tex]          Next, cross multiply. This involves taking the numerator of

                            one side (top) and multiplying it by the denominator

                            (bottom) of the other side.

84=2x(x-1)            42*2=84 and anything multiplied by 1 equals itself. Next,

                            distribute (multiply) the 2x by each term in the

                            parentheses.

84=2[tex]x^2[/tex]-2x            2x*x=2[tex]x^2[/tex]. 2x*-1=-2x. Next, subtract 84 from both sides.

0=2[tex]x^2[/tex]-2x-84        Now, you can simplify this by dividing by 2 on both sides.

0=[tex]x^2[/tex]-x-42             This is a quadratic equation, which means you have to

                             factor or use the quadratic formula. In this case, you can

                             factor by using product and sum. You have to find what

                             multiplies to -42 and adds to -1. Those numbers would be

                              -7 and 6. -7*6=-42 and -7+6=-1 Therefore, you will have

                              x-7 and x+6

0=(x-7)(x+6)           Next, solve each equation with each binomial set equal

                              to 0. For x-7=0, x=7 because you add 7 to both sides. For

                              x+6=0, x=-6 because you subtract 6 from both sides.

x=7   x=-6

You can check if these values work by plugging them into the formula.

[tex]\frac{2x(x-1)}{2}- > \frac{2*7(7-1)}{2}- > \frac{14(6)}{2}- > \frac{84}{2}- > 42[/tex]. x can be 7.

[tex]\frac{2x(x-1)}{2}- > \frac{2*-6(-6-1)}{2}- > \frac{-12(-7)}{2}- > \frac{84}{2}- > 42[/tex]   x can be -6

The base and height are the numbers in the numerator of the equation after the 3rd arrow for both processes.

Fill in the table using this function rule.
y=3x+1
X
2
3
6
7
X
y
0
0
0
S

Answers

Answer:

y={7,10,19,22}

Step-by-step explanation:

3(2)+1 = 6+1 = 7

3(3)+1 = 9+1 = 10

3(6) + 1 = 18+1 = 19

3(7) + 1 = 21+1 = 22

Ernesto guesses there are 69 marbles in a jar, but there are actually 60.

What is the percent error in Ernesto's guess?

Answers

Answer:

15%

Step-by-step explanation:

Since the problem is to find how much 69 is as a percent if 60 is 100%, we can use a rule of three, simple, direct proportion to do it:

60 = 100%

68 = x

x = 69x100/60

x = 115

That means 69 is 115% of 60, which means that the error is of:

115 - 100 = 15%

Hope this helps, have a great day! :D

suppose a department store wants to estimate the average age of the customers of its contemporary apparel department, correct to within 2 years, with level of confidence equal to 0.95. management believes that the standard deviation is 8 years. the sample size they should take is .

Answers

By using the formula for sample size, it can be calculated that the sample size is 62

What is sample?

At first it is important to know about population.

Population is the group of items from where samples are taken for study and research and for statistical purpose

A subset of population is called sample.

Here, margin of error E = 2

Value of z for 95 % confidence interval = 1.96

Standard deviation = 8

Sample size  = [tex](\frac{1.96 \times 8}{2})^2[/tex] [tex]\sim[/tex] 62

To learn more about sample, refer to the link-

https://brainly.com/question/17831271

#SPJ4

It is -4 in Iceland at 7 am. The temperature then
increases by 6 Degrees. What is the new temperature?

Answers

Answer:

Step-by-step explanation:

kakaka



Answer: 2 degrees.

Step-by-step explanation: If it is -4 degrees in Iceland at 7 am and the temperature increases by 6 degrees, the new temperature would be -4 + 6 = 2 degrees.

In a city with an 8.5% tax rate, what would be the total cost for a $66.00

Answers

I got the answer of 71.61 because I took the % moved the decimals multiplied then added it to 66

Please answer! Question is below! Thanks!

Answers

Answer:

y=4x+4

Step-by-step explanation:

slope intercept form is y=mx+b

m is slope

B is y intercept

To find slope we use y2-y1/x2-x1

16-(-4)/3-(-2)

20/5

4 is the slope

We can fill this in

y=4x+b

To find b we fill in any coordinates

-4=4(-2)+b

-4=-8+b

+8. +8

4=b

Now we can fill it in

y=4x+4

Hopes this helps please mark brainliest

Identify each of the following as rational or
irrational.
√23
104.42
√64
49.396
10.97846727460

Answers

Answer:

Irrational, rational, rational, rational, rational.

Step-by-step explanation:

√23 is an irrational number since the value of square root 23 cannot be expressed in the form of p/q.

104.42 this is a rational number! An irrational number has repeating values or just random numbers after the decimal point.

Here's an example...

Tell, does this number look rational?

4.2359712309458730495870192354870394587234098657293085412364781236409584790853467923456790324785098234570923845702398547 (and it goes on forever...and ever...and ever......)

√64 is a rational number. As we know that √64 = 8, a rational number.

49.396 with the 6 repeating is rational because we can express 49.39 as:

49.39 * 1 = 49.39 * 100/100 = 4939/100, and we are then left with

49.396- 49.39 = 0.006 (with the 6 repeating). A repeating decimal can be expressed as x/9, with the x representing all values before the repetition begins multiplied by 10.

10.97846727460 is rational because the decimal places stop, it is rational. Remember, an Irrational number is non-repeating and non-terminating. Since the number terminates, it is rational

May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 3 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!

how is the year 2029 written as a roman numeral?

Answers

The year 2029 written as a roman numeral is MMXXIX.

What are Roman numerals?

Roman numerals are mathematical representations of numbers in the Roman alphabet. Roman numerals are a numeral system that originated in ancient Rome and remained the standard way of writing numbers in Europe until the late Middle Ages.

Roman numerals are the symbols used in a system of numerical notation based on the ancient Roman system. The symbols are I, V, X, L, C, D, and M, which stand for 1, 5, 10, 50, 100, 500, and 1,000, respectively.

In this case, it should be noted that 2029 is MMXXIX.

Learn more about Roman numerals on:

https://brainly.com/question/24565470

#SPJ1

A particle of mass mm moves in the plane with coordinates ( x ( t ) , y ( t ) )(x(t),y(t)) under the influence of a force that is directed toward the origin and has magnitude k / \left( x ^ { 2 } + y ^ { 2 } \right)k/(x 2 +y 2 )—an inverse-square central force field.

Answers

An inverse-square central force field is  [tex]mx^{''} = -\frac{kx}{r^3}\\ \\mx^{''} = -\frac{ky}{r^3}\\[/tex].

From Newton's second law of motion,

mass × acceleration = Force acting on the mass

Resolving the force F along x and y directions and applying Newton's second law of motion,

Using,

[tex]r = \sqrt{x^2+y^2}[/tex]

Therefore,

[tex]m\frac{d^2x}{dt^2} =-|F|cos \theta[/tex]

[tex]mx^{''} = -\frac{k}{x^2+y^2} \frac{x}{\sqrt{x^2+y^2} } \\\\mx^{''} = - \frac{kx}{(x^2+y^2)^\frac{3}{2} }\\ \\mx^{''} = - \frac{kx}{r^3}[/tex]

Where [tex]r = \sqrt{x^2+y^2}[/tex]

​ and cos⁡θ = [tex]\frac{x}{\sqrt{x^2+y^2} }[/tex]

Similarly using,

[tex]r = \sqrt{x^2+y^2}[/tex]

we get,

 [tex]m\frac{d^2y}{dt^2} = -|F|sin\theta[/tex]

[tex]mx^{''} = -\frac{k}{x^2+y^2} \frac{x}{\sqrt{x^2+y^2} } \\\\mx^{''} = - \frac{kx}{(x^2+y^2)^\frac{3}{2} }\\ \\mx^{''} = - \frac{kx}{r^3}[/tex]

Where [tex]r = \sqrt{x^2+y^2}[/tex]

​ and sinθ = [tex]\frac{y}{\sqrt{x^2+y^2} }[/tex]

Therefore we showed that holds

[tex]mx^{''} = -\frac{kx}{r^3}\\ \\mx^{''} = -\frac{ky}{r^3}\\[/tex]

Hence the answer is an inverse-square central force field is  [tex]mx^{''} = -\frac{kx}{r^3}\\ \\mx^{''} = -\frac{ky}{r^3}\\[/tex].

To learn more about coordinates click here https://brainly.com/question/17206319

#SPJ4

what is the sum of the infinite geometric series?25 minus 10 plus 4 minus eight fifths plus continuing the series diverges.

Answers

Answer:

Geometric Sequence

Finding the sum

The sum of the infinite geometric series 3/4 -9/16+27/64 -81/256+ ...is 3/7.

Solution:

Geometric Series Sum Formula: S = a₁/1 - r

Given: a₁ = 3/4

          a₂ = -9/16

          a₃ = 27/64

          a₄ = -81/256

1. Find the common ratio.

      a_n = a₁r ⁿ ⁻ ¹

       a₂  = a₁r ⁿ ⁻ ¹

  -9/16 = 3/4 r ² ⁻ ¹

  -9/16 = 3/4 r

2. Divide both sides of the equation by 3/4 to find r.

   -9/16/3/4 = 3/4 r/3/4

 (-9/16)(4/3) = r

       -36/48 = r

           -3/4 = r

3. Using r = -3/4, find the sum of the infinite geometric series 3/4 -9/16 +27/64 -81/256+ ...

   S = a₁/1 – r

   S = 3/4/1 – (-3/4)

   S = 3/4/1 + ¾

   S = 3/4/4/4  + 3/4

   S = 3/4/7/4

   S = (3/4)(4/7)

   S = 12/28

   S = 3/7

4. Therefore, the sum of the infinite geometric series 3/4 -9/16+27/64 -81/256+ ...is 3/7.

Definition:

     A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant while the sum of an infinite number of terms in a geometric sequence is called sum to infinity.

Code: 10.3.1.1

For more information regarding geometric sequence, go to the following links:

brainly.ph/question/154960

brainly.ph/question/1461781

brainly.ph/question/1634458

Step-by-step explanation:

Other Questions
Question 4Multiple Choice Worth 2 points)(01.05 MC)The following question is about this excerpt from the essay "A Room of One's Own" by Virginia WoolfIt was disappointing not to have brought back in the evening some important statement, some authentic fact. Women are poorerthan men because this or that. Perhaps now it would be better to give up seeking for the truth, and receiving on one's head anavalanche of opinion not as lava, discoloured as dish-water. It would be better to draw the curtains; to shut out distractions; to lightthe lamp, to narrow the enquiry and to ask the historian, who records not opinions but facts, to describe under what conditionswomen ived, not throughout the ages, but in England, say, in the time of ElizabethFor it is a perennial puzzle why no woman wrote a word of that extraordinary literature when every other man, it seemed, wascapable of song or sonnet. What were the conditions in which women ived? I asked myself, for fiction, imaginative work that is, isnot dropped like a pebble upon the ground, as science may be; fiction is like a spider's web, attached ever so lighty perhaps, butstill attached to life at all four corners. Often the attachment is scarcely perceptible, Shakespeare's plays, for instance, seem tohang there complete by themselves. But when the web is pulled askew, hooked up at the edge, torn in the middle, one remembersthat these webs are not spun in mid-air by incorporeal creatures, but are the work of suffering human beings, and are attached togrossly material things, like health and money and the houses we live in...A very queer, composite being thus emerges Imaginatively she is of the highest importance, practically she is completelyinsignificant. She pervades poetry from cover to cover, she is all but absent from history. She dominates the lives of kings andconquerors in fiction, in fact she was the slave of any boy whose parents forced a ring upon her finger. Some of the most inspiredwords, some of the most profound thoughts in literature fall from her lips; in real life she could hardly read, could scarcely spell,and was the property of her husbandWhich of the following is the best example of an allusion?O'For it is a perennial puzzleOfor fiction, imaginative work that is, is not dropped like a pebble upon the ground, as science may beOn the time of ElizabethO'What were the conditions in which women lived? If 5x + 2 = 7x - 7, then x = a client is at high risk for the development of rheumatic heart disease. the most important information for the nurse to provide would be: The sequence of nucleotides in a single strand of DNA is shown. TGA - GTG - AAT - CAT. Which of the following represents the complementary DNA strand?CAG ACA GGC TGCACU CAC UUA GUAACT CAC TTA GTAGTC TGT CCG ACG the nurse is providing teaching for a patient who will begin using tobramycin ointment (nebcin) 0.5 inches 3 times daily. the patient currently uses pilocarpine hcl (isopto carpine) drops to treat glaucoma. which statement by the patient indicates a need for further teaching? an unlawful attack against computers or networks that is done to intimidate a government or its people for a political or social agenda is known as . (1 point)cyberterrorism cybercrime cyberbullying cyberstalking 42. in activity-based costing, what would you call the cost of the materials, paint, screws, and labor all needed to produce a product? cost driver mixed costs activity costs cost pool Which of the following is a characteristic of sexual reproduction? Select all that apply.A. Requires two parent organisms B. Offspring are identical to the parentC. Results in increasing the survival rate of the population D. Extremely efficient E. Can occur internally or externally F. Offspring are genetically unique if n people of different heights are lined up in a queue, what is the probability that at least one person is just behind a taller person? the crowding-out effect of expansionary fiscal policy suggests that: group of answer choices private investment increases at the expense of government spending. government spending increases at the expense of private investment. saving increases at the expense of investment. imports replace domestic production. how do financial analysts use the monte carlo simulation or other models to help them evaluate an investment or project? assume that you work in a company with a firewall configured to protect the internal network from the outside internet. ask your students whether they recommend installing and configuring personal firewalls on all company workstations. why or why not? a particular light photon carries an energy of 3.4x10^-19 j. what are the frequency, wavelength, and color of this light Journal entries record activities from what? (fill in the blank) are migrants who are forced to flee from their countries because of political violence, social unrest, war, or civil conflicts. A new employee charged $7220 on his credit card to relocate for his first job. After noticing that the interest rate for his balance was 27% compounded monthly, he stopped charging on that account. He wishes to pay off his balance in years using automatic payments sent at the end of each month.a. What monthly payment must he make to pay off the account at the end of 4 years?b. How much total interest will he have paid? a robotic machine fills containers with an acid solution at the rate of 140 3 t milliliters ( ml ) per second, where t is in seconds and 0 t 60 . how many ml are put into a container in 60 seconds? round to the nearest whole number. historically, the average grade in chem 1015 is a b-/c . in order for an average student to earn an average grade, the average student would be expected to spend an average of 3 hour(s) a week on the course. a 4-bit dac must have an 8.00-v output when all inputs are high. find the required reference voltage. (3 pts) Identify the expression or expressions equivalent to -5 + 4(-3x+6) -4x