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4 years ago

HELLPPPP PLEASE QUICKK ASAP

Mathematics

1 answer:

asambeis [7]4 years ago

6 0

Answer:

Step-by-step explanation:

The reason why it is 9 is because if you look to the bigger triangle, you can see that 15 is 3/4 the size of 20, so once you find what number is 3/4 of 12, you have the answer, 9! Hope this helps!

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The sum of all interior angle of a heptagon is 776 the final angle must have a measure of

Hatshy [7]

776/7=110.85
A=110.85

8 0

3 years ago

What is the rate of change of the linear relationship modeled in the table (-2,5) (-1,4) (0,3) (1,2)

poizon [28]

The rate of change of the linear relationship is -1.

Explanation:

It is given that there is a linear relationship between all these points, these points lie on a straight line.

The equation to find the slope passing through two points $\left(x_{1}, y_{1}\right)$ and $\left(x_{2}, y_{2}\right)$ is given by

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substituting the points $(-2,5)$ and $(-1,4)$ , we get,

$\begin{aligned}m &=\frac{4-5}{-1+2} \\&=\frac{-1}{1} \\&=-1\end{aligned}$

Thus, the slope is -1.

Thus, the rate of change of the linear relationship is -1.

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4 years ago

(3,-7) and (9,-5)<br> What is the equation

spin [16.1K]

Answer:

y=1/3x-8

Step-by-step explanation:

let me know if not clear

6 0

3 years ago

It is legal to write a check when your account does not have funds to cover it. True False

Rina8888 [55]

Answer:

Step-by-step explanation:

False

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3 years ago

Read 2 more answers

On a camping trip you bring 12 items for 4 dinners. For each dinner you use 3 items. In how many ways can you choose items for t

Rashid [163]

Answer:

220 options, 84 options, 20 options, 1 option

Step-by-step explanation:

<h3>The first dinner</h3>

Combinations of 3 out of 12 items

12C3 = 12!/(12-3)!3! = 12!/9!3! = 12*11*10/2*3 = 220

<h3>The second dinner</h3>

Combinations 3 out of remaining 9 items

9C3 = 9!/(9 - 3)!3! = 9!/6!3! = 9*8*7/2*3 = 84

<h3>The third dinner</h3>

Combinations of 3 out of remaining 6 items

6C3 = 6!/(6 - 3)!3! = 6!/3!3! = 6*5*4/2*3 = 20

<h3>The fourth dinner</h3>

Combinations of 3 out of 3 remaining items

3C3 = 3!/(3 - 3)!3! = 3!/0!3! = 1

6 0

3 years ago