I need help answering this question, Asap

I Need Help Answering This Question, Asap

Answers

Answer 1

Answer:

(-65)/17

Step-by-step explanation:

Evaluate 3/(x - 2) - sqrt(x - 3) where x = 19:

3/(x - 2) - sqrt(x - 3) = 3/(19 - 2) - sqrt(19 - 3)

19 - 3 = 16:

3/(19 - 2) - sqrt(16)

19 - 2 = 17:

3/17 - sqrt(16)

sqrt(16) = sqrt(2^4) = 2^2:

3/17 - 2^2

2^2 = 4:

3/17 - 4

Put 3/17 - 4 over the common denominator 17. 3/17 - 4 = 3/17 + (17 (-4))/17:

3/17 - (4×17)/17

17 (-4) = -68:

3/17 + (-68)/17

3/17 - 68/17 = (3 - 68)/17:

(3 - 68)/17

3 - 68 = -65:

Answer: (-65)/17

Answer 2

Answer:

-3.86

Step-by-step explanation:

Replace x with 19.

f(19) = 3/(19+2) - √19-3

f(19)= 1/7 - 4

f(19) = -3.86


Related Questions

Work of the size of one exterior angle

Answers

The answer is 36 degrees

Answer:

<x = 36°

Step-by-step explanation:

In a regular decagon, Every interior angles is equal to 144.

So,

<x + 144 = 180 [Angles on a straight line]

<x = 180-144

<x = 36°



Mr. Bloop can high jump 5.75 feet. How far short is that of Charles Austin's record of 7 ft 10 in?


Answers

Answer:

5.75 feet is the same as 5 ft 9 inches (because 12 in = 1 ft and 0.75 * 12 = 9 so its 9 in). 7 ft 10 in - 5 ft 9 in = 2 ft 1 in.

Solve x^4 -3x^2 +2=0 using substitution. U=

Answers

Answer:

U = x^2

hope this helped!

Answer:

x^2

Step-by-step explanation:

The person above me is spitting mad facts and da TRUTH and also UNUS ANNUS



A bookstore has marked down the price for all the books in a certain series by 15%. How much is the discount on a book that normally costs $18.00? After the discount, how much would the book cost?

Answers

Answer:

just multiply 18.00 by 15 and than divide 100

Answer:

Discount = $2.70

Price = 18 - 2.70 = $15.30

Step-by-step explanation:

18 x 0.15 = 2.7

What is one value that makes the fraction (4x-8)/(x^2+x-42) undefined? Plz help me I'll mark brainliest! And plz explain how you did it plz ty!

Answers

Answer:

x = 6

Step-by-step explanation:

To make a fraction undefined, the denominator would have to be equivalent to zero. If that is so, x^2 + x - 42 would have to equal 0, and we would have to solve for the value of x;

[tex]x^2 + x - 42 = 0,\\Factored Equation = \left(x-6\right)\left(x+7\right),\\\left(x-6\right)\left(x+7\right) = 0,\\\\Zero Factor Principle, \\x - 6 = 0, and, x + 7 = 0\\\\x = 6, x = - 7\\\\Solution = Either, 6 / - 7[/tex]

We can take x to be either 6 or - 7, but as the question asks us to state only one value, I will take x = 6.

HOW DO U COMBINE LIKE TERMS in math?? DO NOT LOOK IT UP :) THX

Answers

Answer:

See below

Step-by-step explanation:

"Like terms" are terms with the same variable or exponents.

You can add or subtract these just like you would with regular numbers.

Examples:

2x + 4x = 6x

5xy + 7xy = 12xy

6[tex]x^{2}[/tex] + 5[tex]x^{2}[/tex] = 11[tex]x^{2}[/tex]

Let me know if you need more examples or have any questions :)

which represents the equation of the line?

Answers

Answer:

D: y= -2x -1

Step-by-step explanation:

The line crosses the y axis at -1 and using the "rise over run" phrase you can tell that the next point is 2 up and 1 over (2/1 =2) the line is also negative because it moves down from left to right. Therefore, y= -2 -1

Please answer asap thanks

Answers

Answer:

V = 200 pi units ^3

Step-by-step explanation:

The volume of a cone is given by

V = 1/3 pi r^2 h

V = 1/3 pi ( 10 ^2) (6)

V = 1/3 pi (100) *6

V = 200 pi

what are the y-intercept and axis of symmetry of this quadratic function??

Answers

Answer: The answer is B I believe

Step-by-step explanation:

Answer:

y-intercept : (0,5), D

axis of symmetry : x = 3, E

Which of the following is not a Pythagorean triple?
A. 28, 45, 53
B. 16, 63, 65
C. 13, 84, 85
D. 11, 61, 62

Answers

Answer: D,(11,61,62)

Step-by-step explanation:28,45,53

53²=28²+45²

2,809= 784+2,025

         = 2,809

53²=2,809

(28,45,53) is a Pythagorean triple

16,63,65

65²=16²+63²

4225=256+3969

        = 4225

65²=4225

(16,63,65) is a Pythagorean triple

13,84,85

85²=13²+84²

7225=169+7056

        =7225

85²=7225

(13,84,85) is a Pythagorean triple

11,61,62

62²=11²+61²

3,844=121+3,721

        =3,842

62²=3,844

(11,61,62) is not a Pythagorean triple

Consider the polynomial function P(x) = 2x^3 - mx^2 + x - 5m. The remainder when P(x) is divided
by (x - 2) is four times the remainder from dividing P(x) by (x + 1). Determine m algebraically
and show all your work.​

Answers

Answer:

m = 57/14 = [tex]4\frac{1}{14}[/tex]

Step-by-step explanation:

The polynomial can be expressed as follows;

P(x) = 2·x³ - m·x² + x - 5·m

(2·x³ - m·x² + x - 5·m) ÷ (x - 2)

          2·x²

          (-m - 2)·x² + x

                   (-m - 2)·x

                      (m + 3)·x - 5·m

                      (m + 3)·x

                                      -5·m

The remainder = -5·m/(x -2)

Similarly, dividing by (x + 1) will give a remainder of -5·m/(x + 1)

But -5·m/(x -2) = 4×-5·m/(x + 1)

5/(x -2) = 20/(x + 1)

5(x + 1) = 20(x -2)

20x - 5x= 40 + 5

x = 45/15 = 3

2·3³ - m·3² + 3 - 5·m = 54 - 9m + 3 - 5m = 57 - 14m

(57 - 14m)/1 = (57 - 14m)/4

228 - 56m =57 - 14m

171 = 56m-14m =  42m

m = 171/42 = 57/14.

On Monday the price of a company’s stock is $30 per share. On Tuesday, the stock price drops $3, on Wednesday it rises $7, on Thursday it rises $3, and on Friday it drops $4. Write a mathematical statement that represents the situation and determine the price at the end of the week.

Answers

Answer:

The price at the end of the week is $33.

Step-by-step explanation:

We are given that on Monday the price of a company’s stock is $30 per share. On Tuesday, the stock price drops $3, on Wednesday it rises $7, on Thursday it rises $3, and on Friday it drops $4.

The price of a company’s stock on Monday = $30 per share

So, the mathematical statement that represents the situation is given by;

Price of company’s stock on Monday = $30

On Tuesday, the stock price drops $3, so the price of company’s stock on Tuesday = Price of company’s stock on Monday - Drop in price on Tuesday

              = $30 - $3 = $27

On Wednesday, the stock price rises $7, so the price of company’s stock on Wednesday = Price of company’s stock on Tuesday + Rise in price on Wednesday

              = $27 + $7 = $34

On Thursday, the stock price rises $3, so the price of company’s stock on Thursday = Price of company’s stock on Wednesday + Rise in price on Thursday

              = $34 + $3 = $37

On Friday, the stock price drops $4, so the price of company’s stock on Friday = Price of company’s stock on Thursday - Drop in price on Friday

              = $37 - $4 = $33

Hence, the price at the end of the week is $33.

Elijah uses 2 pints of stain on each table that he makes . How many tables can he paint with 1 gallon of stain ? sets

Answers

Answer:

4 sets

Step-by-step explanation:

1 gallon contains 8 pints. It takes 2 pints per table, so we should divide 8 by 2.

By doing this, we get 4, therefore he can stain 4 sets of tables with a gallon of stain.

Is the following statement true or false? The intersection of a plane and a ray can be a line segment.

Answers

Answer:

False

Step-by-step explanation:

Is the following statement true or false?

The intersection of a plane and a ray can be a line segment.

It is false. Correct one is the point.

What is the value of x when y=31

Answers

Answer:16

Step-by-step explanation:

32/16=2

8*2=16

Hope that helps :D

Answer:

16

Step-by-step explanation:

Direct variation

y = kx

16 = k*8

Divide each side by 8

16/8 = 8k/8

2 = k

The equation is y =2x

y =2x

Let y =32

32 = 2x

Divide by 2

32/2 = x

16 =x

straight line graphs: find the equation of the lines shown

Answers

Answer:

1. y = -2n + 9

2. y = (1/2)x + 1/2

Step-by-step explanation:

1.

The equation of a line is denoted by y = mx + b, where m is the slope and b is the y-intercept.

Slope is calculated by taking two coordinates and dividing the difference of the y-coordinates by the difference of the x-coordinates. The y-intercept is where the line intersects the y-axis.

Let's choose any two points on the line: (4, 1) and (3, 3). Then:

slope = m = (3 - 1) / (3 - 4) = 2 / (-1) = -2

Now, we can also see that at the point (0, 9), the line intersects the y-axis, so that means b = 9.

The equation is thus y = -2n + 9.

2.

Let's again choose any two points to find the slope: (1, 1) and (3, 2). Then:

slope = m = (2 - 1) / (3 - 1) = 1/2

We can see that the line crosses the y-axis at the point (0, 1/2), so that means b = 1/2.

The equation is thus y = (1/2)x + 1/2.

~ an aesthetics lover

Answer:

1. y = -2x + 9

2. y = (1/2)x + 1/2

Step-by-step explanation:

There was a mistake on the last one so I would like to correct it it is

y= -2x+9

The other one said -2n its -2x

please help me whats the answer for jim has 100 cards there is a whole number from 1 to 100 on each card no cards have the same number jim puts a star on every card has a multiple of 3 on it he puts a circle on every card that has a multiple of 7 on it what number are on the cards that have both a star and a circle on them the final line on your answer must list only these numbers

Answers

Answer:

4

Step-by-step explanation:

Multiples of 7 and 3 are 21, 42, 63, 84

Hope this helps.

Answer:

21, 42, 63, 84

Step-by-step explanation:

Cards with both star and circle are multiples of both 3 and 7, ie 3*7= 21

21, 21*2= 42, 21*3= 63, 21*4= 84

So 21, 42, 63 and 84 are the required numbers

apply the distributive property to factor out the greatest common factor for 9+12n I need an expression too

Answers

Answer:

3(3+4n)

Step-by-step explanation:

PLEASE HELP! Use a graphing calculator to find an equation of the line of best fit for the data in the table. Round the slope and y-intercept to the nearest tenth. Then Identify and interpret the correlation coefficient.
X- 10.1 9.8 9.7 9.4 8.9 8.7 8.4 8.1
Y- 4.3 4.8 5.3 5.2 5.6 5.8 6.1 6.3
The equation of the line of best fit is y=
To the nearest thousandth, the correlation coefficient is r=

Answers

Answer:

ŷ = -0.895X + 13.600

Slope = -0.9

Intercept = 13.6

r = - 0.964

Step-by-step explanation:

Given the data:

X- 10.1 9.8 9.7 9.4 8.9 8.7 8.4 8.1

Y- 4.3 4.8 5.3 5.2 5.6 5.8 6.1 6.3

Inputting the data given into the online regression calculator :

The equation of line of best fit :

ŷ = -0.895X + 13.600

Slope = - 0.9(to the nearest tenth)

Intercept = 13.6 (to the nearest tenth)

The correlation Coefficient 'r' of the data supplied is - 0.9643, which implies that a strong negative correlation exists between the dependent and independent variables.

r = - 0.964 (to the nearest thousandth)

Inputting the data into the STAT then Fit Data function of the HP 50g

Graphing Calculator.

The equation of the line of best fit is; y ≈ 13.6 - 0.9·xThe correlation coefficient is r ≈ -0.964

The meaning of the strong negative correlation is that the x-values

of the data is decreasing, while the corresponding y-values of the data

increasing.

Reasons:

The least squares regression line equation is the best fit line for the data

The formula for the least squares regression line is [tex]\hat Y = b \cdot X + a[/tex]

Where;

[tex]b = \dfrac{n \cdot \sum X \cdot Y - \left (\sum X \right )\left (\sum Y \right )}{n \cdot \sum X^{2} - \left (\sum X \right )^{2}}[/tex]

[tex]a = \dfrac{\sum Y - b \cdot \sum X}{n}[/tex]

n = The sample size

Inputting the given data into the function Fit Data on a graphing calculator,

by editing ∑DAT.

The left column, represent the x-values, and right column represent the y-

values as follows;

[tex]\begin{array}{|c|cc|} \mathbf{Column \ 1}&&\mathbf{Column \ 2}\\10.1&&4.3\\9.8&&4.8\\9.7&&5.3\\9.4&&5.2\\8.9&&5.6\\8.7&&5.8\\8.4&&6.1\\8.1&&6.3\end{array}\right][/tex]

After inputting the data as above, press enter.

Move the pointer to the Model options line, select choose to choose the

Linear Fit model by selecting OK.

Select OK again for the calculator to do the calculations.

The least squares regression line equation given by the calculator is

presented as follows;

y = 13.5998272884 - 0.894645941278·x

The slope and the y-intercept rounded to the nearest tenth gives;

y = 13.6 - 0.9·x

The slope = -0.9The y-intercept = 13.6

Correlation coefficient:

The correlation coefficient is given from the data using the following

formula;

[tex]r = \dfrac{n \cdot \sum X \cdot Y - \left (\sum X \right ) \cdot \left (\sum Y \right )}{\sqrt{n \cdot \sum X^{2} - \left (\sum X \right )^{2}\times n \cdot \sum Y^{2} - \left (\sum Y \right )^{2}}}[/tex]

From the graphing calculator, we have the correlation coefficient, given as

follows;

Correlation: (-0.964276229529)

Therefore, to the nearest thousandth;

The correlation coefficient, r ≈ -0.964

The high negative value of the correlation coefficient indicates a strong

and near perfect relationship between the variables, x, and y, such that we

have;

A decrease in the value of x leads to a proportional increase in the value of y.

Learn more here:

https://brainly.com/question/24848242

3p+5+4p-2 what is the answer

Answers

Answer:

7p + 3

Step-by-step explanation:

3p+5+4p-2

Rearrange the terms.

3p + 4p + 5 - 2

Add or subtract like terms.

(3+4)p + 3

(7)p +3

Brainliest will be given i need answer ASAP please.

Simplify 84,375/325 to its lowest multiple Example 16/4 = 4/1

Answers

Answer:

3375/13

Step-by-step explanation:

it's found though this equation  [tex]\frac{84375/25}{325/25}[/tex]

Answer:

[tex]3375/13[/tex]

Step-by-step explanation:

[tex]84,375/325[/tex]

Divide the numerator and denominator by 25.

[tex]3375/13[/tex]

[tex]=259.615385[/tex]

8(4-x)=7x+2 solve for X

Answers

Answer: x= 2

Step-by-step explanation:

(8 X 4)+[8 X (-x)]= 7x+2

32- 8x = 7x+2

-8x-7x =2-32

-15x = -30

x= 2

Answer:

x=2

Step-by-step explanation:

[tex]8(4-x)=7x+2[/tex]   Original equation

[tex]32-8x=7x+2[/tex]   Distributive property on left

[tex]30=15x[/tex]   Combine like terms and isolate the variable (x)

[tex]2=x[/tex]   Divide both sides by 15 (Division Property of Equality)

Given that ABCD is a rhombus, find the value of x.

Answers

Answer:

C

Step-by-step explanation:

The diagonals of a rhombus are perpendicular bisectors of each other.

Thus the angle at the intersection of the diagonals is 90°

The sum of the 3 angles in a triangle = 180°

Sum the angles in the lower triangle and equate to 180, that is

90 + x + x + 40 = 180

2x + 130 = 180 ( subtract 130 from both sides )

2x = 50 ( divide both sides by 2 )

x = 25 → C

The value of x is 25.

What are some of the properties of a rhombus?

All four sides are equal.Diagonals bisect each other at 90°.

Given

ABCD is a rhombus,

∠CAD = x°,

∠BDA = (x + 40)°.

Find the equation in x

Let the point where the diagonals intersect be E.

Then, using the property of the rhombus ∠AED = 90°.

We know, in a triangle that the sum of all the three interior angles equals 180°. So, we get,

     ∠AED + ∠BDA + ∠CAD = 180°

⇒                 ∠BDA + ∠CAD = 180° - ∠AED

                                                = 180° - 90° = 90°      (∠AED = 90°)

Put the given values of these angles,

          (x + 40)° + x° = 90°.

This is the equation to be solved to obtain x.  

Solve for x  

           (x + 40)° + x° = 90°

⇒   (2x)° = 90° - 40° = 50°

⇒         x° = (50 / 2)°

⇒         x = 25.

The required value of x is 25.

Learn more about the properties of a rhombus here

https://brainly.com/question/12189679

#SPJ2

if 15% of a number is 100, find 4% of the number

Answers

Answer:

26.6667

Step-by-step explanation:

.15x=100

Divide each side by .15.

x=666.6667

.04(666.6667)=26.6667

Answer:

26(approx.)

Step-by-step explanation:

15/100 times x = 100

3/20 times x = 100

3x/20 = 100

3x = 2000

X= 666 2/3

So,

4/100 x 666.67

1/25 x 666.67 = 26

What is the units digit of $7^7$ when expressed as an integer?

Answers

Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Just stick it into a calculator lol

Find x in the diagram:
For
square root write
sqrt
For example sqrt(7)
55

Answers

Answer:

x = 10

Step-by-step explanation:

Remember your 30-60-90 triangle rules:

You have x√3 (one leg), 2x (hypotenuse), and x (one leg).

If we are given x√3:

x√3 = 5√3

x = 5

x = 2x (hypotenuse)

2(5) = 10

The sequence of the differences, 2, 4, 8, 16, 32, … is a geometric sequence with:

Answers

Answer:

The first term as 2.

Pattern: Multiply the previous term and 2 to get the next term.

Step-by-step explanation:

The pattern is every term is 2× the previous term.

The sequence of the differences, 2, 4, 8, 16, 32, … is geometric. The pattern is every term is 2 times the previous term.

What is geometric series?

The geometric series is a series in which the ratio of two consecutive numbers is constant.

The sequence of the differences, 2, 4, 8, 16, 32, … is geometric.

So, The ratio of two consecutive numbers is constant.

r = 4/2 = 2

r = 8/4 = 2

Thus, The pattern is every term is 2 times the previous term.

Learn more about geometric series;

https://brainly.com/question/13041183

#SPJ2

6 - + 5y - 2y help me answer this question please

Answers

Answer:

Step-by-step explanation:

6 - 5y - 2y

= 6 - 7y

hope this helps

plz mark it as brainliest!!!!!!!

Answer:

[tex]5x+3y[/tex]

Step-by-step explanation:

[tex]6x-x+5y-2y[/tex]

The coefficient of -x is -1.

[tex]6x-1x+5y-2y[/tex]

Factor the variables.

[tex]x(6-1)+y(5-2)[/tex]

Subtract the numbers.

[tex]x(5)+y(3)[/tex]

[tex]5x+3y[/tex]

The answer is 5x+3y.

Decrease £248 by 30%​

Answers

Answer:

173.6

Step-by-step explanation:

0.7(248)

173.6

Answer:

£ 173.6

Step-by-step explanation:

£248 *0.30= 74.4

£248 -74.4 =173.6

The volume of the cylinder is 230 cubic units. What is the volume of the

cone? Round to the nearest enth if necessary.

Answers

Answer:

Step-by-step explanation:

The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

Where

r represents the radius of the cylinder

h represents the height of the cylinder

π is a constant

The formula for determining the volume of a cone is expressed as

Volume = 1/3πr²h

Where

r represents the radius of the cone

h represents the height of the cone

This means that the volume of the cone is 1/3 × volume of cylinder. Since the volume of the given cylinder is 230 cubic units, then

Volume of cone = 1/3 × 230 = 76.7 cubic units

Other Questions
Find the student's error in solving the followinginequality.31 PQR is an isosceles triangle in which PQ = PRMand N are points on PQ and PR such that angle MRQ = angle NQR.Prove that triangles QNR and RMQ are congruent. 3.26 LAB: Leap Year A year in the modern Gregorian Calendar consists of 365 days. In reality, the earth takes longer to rotate around the sun. To account for the difference in time, every 4 years, a leap year takes place. A leap year is when a year has 366 days: An extra day, February 29th. The requirements for a given year to be a leap year are: 1) The year must be divisible by 4 2) If the year is a century year (1700, 1800, etc.), the year must be evenly divisible by 400 Some example leap years are 1600, 1712, and 2016. Write a program that takes in a year and determines whether that year is a leap year. Ex: If the input is: 1712 the output is: 1712 - leap year A 2.4-kg ball falling vertically hits the floor with a speed of 2.5 m/s and rebounds with a speed of 1.5 m/s. What is the magnitude of the impulse exerted on the ball by the floor (25 POINTS) Write the inequality of the following graph? the team is struggling to agree on the story point sizing of a new user story. The PO was previously a related domain expert and feels the team is wasting time. What should he do? Determine whether the sequence converges or diverges. If it converges, find the limit. (If an answer does not exist, enter DNE.) 1 2 , 1 3 , 1 3 , 1 4 , 1 4 , 1 5 , 1 5 , 1 6 , ... A student's tonsils become infected and she has them removed. What condition does she need to be careful of in the future?(2 points) Production estimates for August are as follows: Estimated inventory (units), August 1 12,000 Desired inventory (units), August 31 2,000 Expected sales volume (units), August 75,000 For each unit produced, the direct materials requirements are as follows: Direct material A ($5 per pound) 3IbsDirect material B ($15 per pound) 1/2 IbThe number of pounds of matierials A and B required for August production are_____. The total direct materials purchases of materials A and B required for August production is:______. using the side lengths, determine whether the triangle is acute, obtuse or right 9 5 10 Eberley Corporation's cost formula for its manufacturing overhead is $25,700 per month plus $10 per machine-hour. For the month of July, the company planned for activity of 5,900 machine-hours, but the actual level of activity was 5,920 machine-hours. The actual manufacturing overhead for the month was $86,800. The manufacturing overhead in the planning budget for July would be closest to: What is the best health-related reason to be physically active? Group of answer choices what are at least three things that enabled women to improve their status in society during and following WWI? Describe Two external factors that may influence a persons decision to become bulimic What are the coordinates of the image of L for a dilation with center (0,0) and scale factor 1/4? Which bacteria is Acid-fast? Abcd is a rectangle. What does Electronegativity mean in regards toelements? How does electronegativity influence themolecule's chemical property?Help :( You purchase one MMM July 129 call contract (equaling 100 shares) for a premium of $21. You hold the option until the expiration date, when MMM stock sells for $141 per share. You will realize a ______ on the investment. Previously, you took Cornell notes while watching the 2014 State of the Union address. Then you read the text of the same speech. Turn in the Cornell notes you took while watching the video. Write two paragraphs comparing and contrasting watching versus reading the speech. How was watching different from listening? How did reading the speech change your understanding? What impact did the video have that was different from reading the speech? How was it the same? Think about other differences and similarities. Use specific details to illustrate your points.