guys please help me out ignore #21

Guys Please Help Me Out Ignore #21

Answers

Answer 1

Answer:

8.25

Step-by-step explanation:

To solve, you need to create a system of equations.  You will need two variables since you have two numbers.  Create your equations based on the descriptions given in the problem.

The difference of two numbers is 4.

x - y = 4

The sum of the two number is -7.

x + y = -7

Your system of equations is

x - y = 4

x + y = -7

You can solve systems of equations through either substitution or elimination.  You will get the right answer either way.  I will use substitution since that is my preference.

Rearrange the first equation so that it is equal to x.

x - y = 4

x = 4 + y

Plug this x-value into the x in the second equation.  Solve for y.

x + y = -7

(4 + y) + y = -7

4 + 2y = -7

2y = -11

y = -11/2

Use the y-value to solve for x.  You can plug it into either equation and get the right answer.  I will use the first equation.

x - y = 4

x - (-11/2) = 4

x + 11/2 = 4

x = -3/2

Now you have both of the numbers.  Multiply to find the product.

-11/2 × -3/2 = 33/4 = 8.25

The answer is 8.25.


Related Questions

How many sides does a regular polygon have
if one of its exterior angles =45°?

Answers

Answer:

8 sides.

Step-by-step explanation:

Divide the exterior angle with 360.

360 ÷ 45 = 8

The regular polygon has 8 sides.

Answer:

Step-by-step explanation:

Sum of measures of all angles of a regular polygon = 360 degree

one exterior angle = 45 degree

∴ no of sides = 360/45 = 8 sides

hope this helps

plz mark it as brainliest!!!!!!

The graph of the function f(x)=x^2-4x+6 is shown here. What is it’s axis of symmetry

Answers

Answer:

x = 2

Step-by-step explanation:

Since you didn't attach an image of the graph I'll have to do this the long way and use a strategy called "completing the square" to find the vertex. The x-coordinate of the vertex is the axis of symmetry.

x² - 4x + 6

= (x - 2)² - 4 + 6

= (x - 2)² + 2, therefore the vertex is (2, 2) so the axis of symmetry is x = 2.

Suppose a triangle has two sides of length 3 and 4 and that the angle
between these two sides is 60°. What is the length of the third side of the
triangle?
A. 5
B. 113
C. 413
D. 3
SUBMIT

Answers

The answer to this question is 413

The area of a room is roughly 9∗10^4 square inches. If a person needs a minimum of 2.4∗10^3 square inches of space, what is the maximum number of people who could fit in this room

Answers

Answer:

37

The maximum number of people who could fit in this room is 37

Step-by-step explanation:

Given;

The area of a room A = 9 × 10^4 square inches

Minimum Area needed per person M = 2.4×10^4 square inches

The maximum number of people who could fit in this room is;

N = The area of a room A/Minimum Area needed per person M

N = A/M

Substituting the values;

N = 9×10^4 ÷ 2.4×10^3

N = 37.5

Since we can not have a 0.5 person, the number would be approximated down to nearest lower whole number.

N = 37

The maximum number of people who could fit in this room is 37

I’m stuck on this!?!!

Answers

Answer:

[tex]x=66^\circ[/tex]

Step-by-step explanation:

[tex]x=\frac{180^\circ - 48^\circ}{2}\\\\=\frac{132^\circ}{2}\\\\=66^\circ[/tex]

Best Regards!

2x + 5y = 12
-2x + 3y = 4
In elimination method​

Answers

So just add equation 1 and equation 2
You will get
2x-2x + 5y + 3y = 12 + 4
8y = 16
y = 16/8
y = 2
Substituting y in equation 1
2x + 5*2 = 12
2x + 10 = 12
2x = 12 - 10
x = 2/2
x = 1
=

Miguel is playing a game in which a box contains four chips with numbers written on them. Two of the chips have the number 1, one chip has the number 3, and the other chip has the number 5. Miguel must choose two chips, and if both chips have the same number, he wins $2. If the two chips he chooses have different numbers, he loses $1 (–$1). Let X = the amount of money Miguel will receive or owe. Fill out the missing values in the table. (Hint: The total possible outcomes are six because there are four chips and you are choosing two of them.) Xi 2 –1 P(xi) What is Miguel’s expected value from playing the game?

Answers

Answer:

The answer is "[tex]\bold{-\frac{1}{2}}[/tex]"

Step-by-step explanation:

Miguel's choose the best way to win the 2 dollars by pulling the two chips with the number 1.  In total, there are four balls, so his probability of winning is:  

[tex]\to \frac{2}{4} \times \frac{1}{3}= \frac{1}{6}[/tex]

The chances of losing a dollar add up to that amount, so 5/6.  

Price predicted = [tex]\frac{1}{6} \times (2) + \frac{5}{6} \times (-1)[/tex]

                          [tex]=\frac{1}{6} \times 2 + \frac{5}{6} \times -1\\\\=\frac{1}{3} - \frac{5}{6} \\\\=\frac{2-5}{6}\\\\=\frac{-3}{6}\\\\=- \frac{1}{2}\\[/tex]

The final answer is "[tex]-\frac{1}{2}[/tex]"

a store is having a sale on almonds and jelly beans. for 2 pounds of almonds and 3 jelly beans , the total cost is $14. for 4 pounds of almonds and 8 pounds of jelly beans, the total cost is $33. find the cost of each pound of almonds and each pound of jelly beans

Answers

Answer:

almonds cost $3.25 per pound and jelly beans $2.50

Step-by-step explanation:

system of linear equations

2a+3j=14

4a+8j=33

solution is (3.25, 2.5)


In this picture B,D, and F are midpoints. AC=50, CE=60, and BD=35
DF=[?]
please help !!

Answers

Answer:

DF = 25

Step-by-step explanation:

We know that the triangle midpoint theorem says that the line segment connecting the midpoints of two sides of a triangle is parallel to the third side and is congruent to one half of the third side.

So,

DF = [tex]\frac{1}{2} AC[/tex]

Where AC = 50

DF = 50/2

DF = 25

URGENT!!!!


An ocicat eats 3/5 of a pound of food daily. How many ocicats can a 19 1/2 -pound bag of food feed for one week? Explain your solution.

Answers

Answer:

13 ocicats

Step-by-step explanation:

Here, we are told that an Ocicat eats 3/5 pounds of food per day.

Now, we have a bag of 19 1/2 pound of food and we want to know the number of ocicats this will feed

What we just need to do is to divide the weight of the bag by the amount in pounds that can feed a single ocicat

Thus, we have;

19 1/2 divided by 3/5

= 39/5 divided by 3/5

= 39/5 * 5/3

= 13 Ocicats

Calculate ff(-3). You will get BRAINLIEST.

Answers

Answer:

[tex]ff(-3)=-17[/tex]

Step-by-step explanation:

Image attached below.

Work out the range of these numbers : -8, 6, -5, 2.5 thanks!

Answers

Answer:

14

Step-by-step explanation:

The range of a given set of values is the lowest value deducted from the highest value.

Lowest value is -8 and highest value is 6.

Therefore,

[tex]Range = Highest value - Lowest value \\ = 6 - ( - 8) \\ = 6 + 8 \\ = 14[/tex]

Hope it helps!

Chen spins the spinner and rolls a standard number cube. Find the probability that’s the spinner will stop on blue and the cube will show four. Write the probability as a fraction in simplest form. (Spinner shows 4 quarters, all different colors. Yellow, orange, red and blue.)

Answers

Answer: 1/24

Step-by-step explanation:

You multiply the fraction of the first probability by the fraction of the second probability.

The spinner has 4 colors, the odds of it landing on blue is 1/4

The cube has 6 numbers, the odds of it landing on 4 is 1/6

1/4 * 1/6 = 1/24

Elizabhet debe preparar carapulcra para 32 personas si se basa en la receta que se muestra que cantidad necesitara de cada ingrediente carapulcra 8 porciones un medio de papa seca un medio kg de carne de chancho 1 cebolla grande 3 cucharadas de aji panca un entero un medio cucharadas de ajos molidos 1 cucharada de sal

Answers

Step-by-step explanation:

Para hacer las porciones para 32 personas, multiplique cada cantidad de ingrediente por 4 ya que la receta proporciona 8 porciones y 8 * 4 = 32

Papa seca = [tex]\frac{1}{2} *4[/tex]

                     = 2 papas secas

Cerdo = [tex]\frac{1}{2} *4[/tex]

       = 2 kg de carne de cerdo

Cebollas = 1 * 4

            = 4 cebollas grandes

Aji panca = 3 * 4

               = 12 cucharadas de aji panca

Ajo molido = [tex]1\frac{1}{2} *4[/tex]

                       = [tex]\frac{3}{2} *4[/tex]

                       = 6 cucharadas de ajo molido

Sal = 1 * 4

      = 4 cucharadas de sal

Which of the following is the solution to (x-13)<18

Answers

Answer:

The solution to the equation (x-13)<18 is that x can be equal to the numbers 0-17 (NOT including negative numbers)

A company laid off one-sixth of its workforce because of falling sales. If the number of employees after the layoff is 690, how many employees were laid off?

Answers

Answer:

138

Step-by-step explanation:

Let the number of employees before the layoff be x.

1/6 of the company's workers were laid off and the remaining workers are 690. This means that:

1/6 * x = x - 690

=> x/6 = x - 690

=> 690 = x - x/6

690 = 5x/6

=> x = (690 * 6) / 5

x = 828

There were 828 workers before the layoff. Therefore, the number of employees that were laid off is:

828 - 690 = 138 employees

The company's laying off its workforce is an illustration of proportions.

A total of 138 employees were laid off

The proportion (p) laid off is given as:

[tex]p = \frac 16[/tex]

The proportion (q) remaining in the workforce would be

[tex]q = 1 - p[/tex]

This gives

[tex]q = 1 - \frac 16[/tex]

[tex]q =\frac 56[/tex]

The workforce after 1/6 were laid off is given as 690.

So, we have:

[tex]q \times n = 690[/tex]

Where n represents the original workforce

This gives

[tex]\frac 56 \times n = 690[/tex]

Multiply both sides by 6/5

[tex]n = 828[/tex]

The number of employees that were laid off is:

[tex]Employee = 828 - 690[/tex]

[tex]Employee = 138[/tex]

Hence, 138 employees were laid off

Read more about proportions at:

https://brainly.com/question/16981404

Is the following graph a linear function, a nonlinear function, and/or a relation

Answers

Answer: Option C.

Step-by-step explanation:

Ok, first, a linear function is something of the shape of:

y = a*x + b.

And the graph of those functions is a line, as the name implies, so we can discard that option.

So this must be a non-linear function, you can see that is a function because each value of x has only one value of y related to it.

Second, in a Venn diagram you will see that the set of functions is contained into the set of relationships, this means that all the functions are relationships, but not all the relationships are functions, and we know that this is a non-linear function, so this also must be a relationship.

Then the correct option is C, nonlinear, and a relationship.

Which measurement is not equivalent to the others? 1 yard 3 feet 1/100 of a mile 36 inches

Answers

Answer: 1/100 of a mile

Step-by-step explanation:

36 inches is equal to 3 feet which is equal to 1 yard

1/100 of a mile = 633.6 inches

Answer:

1/100 of a mile

Step-by-step explanation:

25 points !!! 3 1/3 x 52

Answers

Answer:

Irrational

Step-by-step explanation:

3 1/3 × √52

= 10/3 × √52

= 20/3√13

= 24.037009

Irrational, the product cannot be written in the form p/q as a fraction.

Answer:

irrational

Step-by-step explanation:

3 1/3 * sqrt(52)

Changing to an improper fraction

10/3 * sqrt(52)

10 /3 * sqrt( 4*13)

10/3 * sqrt(4) sqrt(13)

10/3 * 2 sqrt(13)

20/3 sqrt(13)

Since sqrt(13) is irrational the product is irrational

A study was done by an online retail store to determine the rate at which users used its website. A graph of the data that was collected is shown: What can be interpreted from the range of this graph?

The range represents the 54-month time period of the study.
The range represents the 36-month time period of the study.
The range represents the number of users each month for 36 months. The range represents the number of users each month for 54 months.

Answers

Answer:

The correct answer is C.

Step-by-step explanation:

First, we can eliminate A and D since it is obviously only 36 months.

Note that the question asks what can be interpreted from the range of the graph.

The range is the number of users in thousands (per month) (as can be seen from the side title).

While B is technically correct, it wrongly interprets the range. C is the best choice.

The correct answer is C.

In triangle ABC, the right angle is at vertex C, a = 714 cm and the measure of angle A is 78° . To the nearest cm, what is the length of side c?

Answers

Answer:

c = 730 cm

Step-by-step explanation:

To solve this question we just need to use the law of sines:

The ratio between a side in the triangle and its opposite angle is always the same.

So we have that:

[tex]a / sin(A) = c / sin(C)[/tex]

[tex]714 / sin(78) = c / sin(90)[/tex]

sin(78) is equal 0.9781 and sin(90) is equal 1, so we have:

[tex]714 / 0.9781 = c / 1[/tex]

[tex]c = 714 / 0.9781 = 730\ cm[/tex]

An 8-sided fair die is rolled twice and the product of the two numbers obtained when the die is rolled two times is calculated.
(A) Draw the possibility diagram of the product of the two numbers appearing on the die in each throw

Answers

Answer:

The answer is "64".

Step-by-step explanation:

Given:

8-sided fair die

output of Die = { 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 }

if the Dice is thrown two times. so, the possible outputs are as follows:

[tex]\to 8 \times 8=64[/tex]

[tex]\texttt{ = (1,1),(1,2),(1,3),(1,4),(1,5),(1,6),}\\ \ \ \texttt{(1,7),( 1, 8),(2,1),(2,2),(2,3),(2,4),}[/tex]

[tex]\texttt{(2,5),(2,6),(2,7),(2,8),(3,1), (3,2),}\\ \texttt{(3,3),(3,4),(3,5),(3,6),(3,7),(3,8) ,}\\\texttt{(4,1),(4,2),(4,3), (4,4),(4,5),(4,6),} \\[/tex]

[tex]\texttt{(4,6),(4,7),(4,8),(5,1),(5,2),(5,3),}\\\texttt{(5,4),(5,5),(5,6),(5,7),(5,8),(6,1),}\\\texttt{(6,2),(6,3),(6,4),(6,5),(6,6),(6,7),}[/tex]

[tex]\texttt{(6,8),(7,1),(7,2),(7,3),(7,4),(7,5),} \\\texttt{(7,6),(7,7),(7,8),(8,1),(8,2),(8,3),}\\ \texttt{(8,4),(8,5),(8,6),(8,7),(8,8)}[/tex]

That's why the product is 64.

What is an equation in point-slope form of the line that passes through the point (8, 5) and has slope −7?

Answers

Answer:

y - 5 = -7(x - 8)

Step-by-step explanation:

We can immediately adapt y - k = m(x - h) as follows:  replace m with -7, h with 8 and k with 5, obtaining:

y - 5 = -7(x - 8)

This is the desired equation in point-slope form.

Find the equation of the circle whose center and radius are given.
center (7.-3), radius = 7

Answers

Answer:

(x - 7)² + (y + 3)² = 7

Step-by-step explanation:

The equation of a circle is denoted by: [tex](x -x_1)^2+(y-y_1)^2=r^2[/tex], where [tex](x_1,y_1)[/tex] is the centre and r is the radius.

Here, the centre is (7, -3), which means [tex]x_1=7[/tex] and [tex]y_1=-3[/tex]. The radius is r = √7. Plug these values into the formula:

[tex](x -x_1)^2+(y-y_1)^2=r^2[/tex]

[tex](x -7)^2+(y-(-3))^2=(\sqrt{7}) ^2[/tex]

[tex](x -7)^2+(y+3)^2=7[/tex]

Thus, the answer is (x - 7)² + (y + 3)² = 7.

~ an aesthetics lover

Mr. Jamieson plans to put some 3-pound math books in a box that can hold 26 pounds or less. The inequality 3b ≤ 26 describes the situation. Which statement about his solution, b ≤ 8 2 3 23 , makes the most sense?

Answers

Answer:

b ≤ 26/3

Step-by-step explanation:

All we have to do is divide both sides by 3

3x/3 ≤ 26/x

x ≤ 8.67

A Nissan Motor Corporation advertisement read, "The average man’s I.Q. is 107. The average brown trout’s I.Q. is 4. So why can’t man catch brown trout?" Suppose you believe that the brown trout’s mean I.Q. is greater than 4. You catch 12 brown trout. A fish psychologist determines the I.Q.s as follows: 5; 4; 7; 3; 6; 4; 5; 3; 6; 3; 8; 5. Conduct a hypothesis test of your belief.

Answers

Answer:

Step-by-step explanation:

Considering the brown tout,

The mean of the set of data given is

Mean = (5 + 4 + 7 + 3 + 6 + 4 + 5 + 3 + 6 + 3 + 8 + 5)/12 = 4.92

Standard deviation = √(summation(x - mean)²/n

n = 12

Summation(x - mean)² = (5 - 4.92)^2 + (4 - 4.92)^2 + (7 - 4.92)^2 + (3 - 4.92)^2 + (6 - 4.92)^2 + (4 - 4.92)^2 + (5 - 4.92)^2 + (3 - 4.92)^2 + (6 - 4.92)^2 + (3 - 4.92)^2 + (8 - 4.92)^2 + (5 - 4.92)^2 = 28.9168

Standard deviation = √(28.9168/12) = 1.55

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

µ ≥ 4

For the alternative hypothesis,

µ < 4

This is a left tailed test

Since the number of samples is small and no population standard deviation is given, the distribution is a student's t.

Since n = 12,

Degrees of freedom, df = n - 1 = 12 - 1 = 11

t = (x - µ)/(s/√n)

Where

x = sample mean = 4.92

µ = population mean = 4

s = samples standard deviation = 1.55

t = (4.92 - 4)/(1.55/√12) = 2.06

We would determine the p value using the t test calculator. It becomes

p = 0.98

Assuming a significance level of 5%

Since alpha, 0.05 < than the p value, 0.98, then we would fail to reject the null hypothesis. Therefore, At a 5% level of significance, the sample data showed significant evidence that the brown trout’s mean I.Q. is greater than 4

Please solve this problem. I will give brainliest:
((4x+6)*70)/2=4
Solve for x

Answers

Answer:

x = -103/70 or approximately -1.47

Step-by-step explanation:

First, what I would do is get rid of the denominator, 2. You do this by perming the inverse operation to both sides, so you multiply both sides by 2.

Now your equation is: 70(4x+6) = 8

Next what I did was distribute the 70 inside the parentheses:

280x + 420 = 8.

Then you subtract 420 from both sides:

280x = -412

To get x by itself, you have to divide both sides by 280:

x= -412/280 , which simplifies to -103/70 , or can be written as an approximation of -1.47 (rounded to nearest hundredth)

This number looks nasty, but I checked my work so it should be right :)

Answer:

x=  −103 /70

Step-by-step explanation:

Simplify (10–2) 4. A) 10^-8 B)10^-6 C)-10^-6 D)-10^8

Answers

Answer:

A

Step-by-step explanation:

[tex](10^{-2})^{4}[/tex]

Apply the law of exponents.

[tex]10^{-2 \times 4}[/tex]

[tex]=10^{-8}[/tex]

Answer:

[tex] = {10}^{ - 8} \\ [/tex]

Answer A is correct.

Step-by-step explanation:

[tex] {( {10}^{ - 2}) }^{4} \\ {10}^{ - 2 \times 4} \\ = {10}^{ - 8} [/tex]

someone please help :rewrite 2.267 repeating 67 as a simplifed answer

Answers

Answer:

2⁵³/₁₉₈

Step-by-step explanation:

2.2676767 = 2.7676767 − 0.5

2.2676767 = 2⁷⁶/₉₉ − ½

2.2676767 = 2¹⁵²/₁₉₈ − ⁹⁹/₁₉₈

2.2676767 = 2⁵³/₁₉₈

Answer:

449/198  or 2 53/198

Step-by-step explanation:

2. 267676767 = x

10x= 22. 67676767

1000x= 2267. 676767

1000x-10x= 2267.676767- 22.676767

990x= 2245x= 2245/990x= 449*5/5*198x= 449/198 x= 2 53/198

help asap!!!!!! please

Answers

Answer:

Point B is 3/4

Step-by-step explanation:

the number line is split into fourths. Therefore, it is 3/4

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