What is the slope-intercept equation<br> for the following line?<br> y = [?]x + []

Natasha2012 [34]

Answer:

$area \: of \: the \: square \: grid = 10 \times 10 \\ = 100 \\ area \: of \: a \: triagle = \frac{1}{2} \times 10 \times 5 \\ 25 \\ number \: of \: triangles = 100 \div 25 \\ = 4$

answer is 4th option

5 0

3 years ago

What’s the answer?.....

DerKrebs [107]

Answer:

y & z

Step-by-step explanation:

8 0

3 years ago

10) Solve the problem below using any method. Define your variables and write out the two

irga5000 [103]

Answer:

Variables: r, s

Number of Regular Tickets: 215

Equations: 8r + 6s = 3580; r + s = 525

Number of Senior Tickets: 310

Step-by-step explanation:

10) Solve the problem below using any method. Define your variables and write out the two equations. Then solve the problem.

A movie theater sells regular tickets for $8.00 and senior tickets for $6.00. One evening the theater

sold 525 tickets and took in $3580 in revenue. How many of each type of ticket were sold?

let r = number of regular tickets

let s = number of senior tickets

Equations:

The first equation deals with money.

8r + 6s = 3580

The second equation deals with numbers of tickets.

r + s = 525

Use the substitution method.

Solve the second equation for r.

r + s = 525

r = 525 - s

Substitute 525 - s for r in the first equation.

8r + 6s = 3580

8(525 - s) + 6s = 3580

4200 - 8s + 6s = 3580

4200 - 2s = 3580

-2s = -620

s = 310

Now substitute 310 for s in the equation r = 525 - s

r = 525 - 310

r = 215

Variables: r, s

Number of Regular Tickets: 215

Equations: 8r + 6s = 3580; r + s = 525

Number of Senior Tickets: 310

7 0

2 years ago

Courtlynn combines 7/8 cup sour cream with 1/2 cup cream cheese. She then divides the mixture between 2 bowls. How much mixture

STALIN [3.7K]

$\frac{11}{4}$ this is because when you add $\frac{7}{8}$ and $\frac{1}{2}$ you get $\frac{11}{8}$ which you'd then divide like this

$( \frac{11}{1} ) ( \frac{2}{8})
=( \frac{11}{1} ) ( \frac{1}{4})
= \frac{11}{4}$

If you wanted to simplify that it would be $2 \frac{3}{4}$

4 0

4 years ago

Compute the correlation coefficient for the data set. (2,19), (3,22), (4,26), (5,20), (6,35), (7,30), (9,40), (10,42), (11,35)

lakkis [162]

Answer:

The correlation coefficient of the data is 0.8679.

Step-by-step explanation:

The formula to compute the correlation coefficient is:

$r(X,Y)=\frac{n\cdot \sum XY-\sum X\cdot \sum Y}{\sqrt{n\cdot\sum X^{2}-(\sum X)^{2}}\times \sqrt{n\cdot\sum Y^{2}-(\sum Y)^{2}}}$

From the data provided compute the values of ∑ XY, ∑ X, ∑ Y, ∑ X² and ∑ Y².

The values are computed in the table below.

Compute the correlation coefficient as follows:

$r(X,Y)=\frac{n\cdot \sum XY-\sum X\cdot \sum Y}{\sqrt{n\cdot\sum X^{2}-(\sum X)^{2}}\times \sqrt{n\cdot\sum Y^{2}-(\sum Y)^{2}}}$

$=\frac{(9\times 1893)-(57\times 269)}{\sqrt{(9\times 441)-(57)^{2}}\times \sqrt{(9\times 8635)-(269)^{2}}}\\\\=\frac{1704}{\sqrt{720\times 5354}}\\\\=0.86788895\\\\\approx 0.8679$

Thus, the correlation coefficient of the data is 0.8679.

4 0

3 years ago

What is the slope-intercept equation for the following line? y = [?]x + []