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VashaNatasha [74]

3 years ago

14

10ptsplzanswerdizforme

1 answer:

nalin [4]3 years ago

6 0

X=4y+16
y=x/4-4
hope it helps

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What is 5 over 3 to the -2 power

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3 years ago

Which equation can be used to solve for x in the following diagram.

Romashka [77]

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Step-by-step explanation:

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Which expression shows how 6 • 45 can be rewritten using the distributive property?

tatuchka [14]

6*45=270 is the first step you should do to get the answer you are looking for. The next thing I would do is go to all the answers to see which one comes out the same way. The first one comes to be 246, the next one is 54, the next is 270 and the last one is 220. 6*40+6*5 is the correct answer.

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3 years ago

RSM wants to send four of its 18 Math Challenge teachers to a conference. How many combinations of four teachers include exactly

tatiyna

Answer:

1120 combinations of four teachers include exactly one of either Mrs. Vera or Mr. Jan.

Step-by-step explanation:

The order in which the teachers are chosen is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

1 from a set of 2(Either Mrs. Vera or Mr. Jan).

3 from a set of 18 - 2 = 16. So

$C_{2,1}C_{16,3} = \frac{2!}{1!1!} \times \frac{16!}{3!13!} = 1120$

1120 combinations of four teachers include exactly one of either Mrs. Vera or Mr. Jan.

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3 years ago

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Step-by-step explanation:

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