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3 years ago

Which of these is the algebraic expression for "5 times the sum of 2 and y?" (1 point)

Mathematics

1 answer:

Mumz [18]3 years ago

8 0

Which of these is the algebraic expression for "5 times the sum of 2 and y?" (1 point)

A. 5 ⋅ 2 + y

B. 2 + 5 ⋅ y

C. 2(5 + y)

D. 5(2 + y) ✔

______________

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The student council at Spend too much High School is planning a school dance. The table below shows the budget for the dance.

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3 years ago

Which function has zero at x=10 and x=2

Marizza181 [45]

Answer:

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3 years ago

What is the mean and MAD of 5,7,10,6

Wittaler [7]

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3 years ago

Read 2 more answers

how many different combinations of six people can sit in four chairs? assume one person sits in each chair

Tems11 [23]

We want to choose 4 people and we have 6 people to choose from. This is a combination of 6, 4 by 4. Also called <em>six choose four</em>.

The following formula:

$_rC_n=\frac{n!}{r!(n-r)!}$

Is the combination of $r$ objects choosen from a total of $n$ . It's $n$ choose $r$ .

For our problem, we just need to compute the following:

$_4C_6=\frac{6!}{4!(6-4)!}=\frac{6\times5\times4!}{4!2!} =\frac{6\times5}{2\times1} =15$

Thus

$\boxed{_4C_6=15}$

Therefore the answer is 15 different combinations

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3 years ago