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777dan777 [17]
3 years ago
5

3 (x+4) + 7x combining like terms

Mathematics
1 answer:
Debora [2.8K]3 years ago
4 0

Answer:

10x+12

Step-by-step explanation:

we have

3(x+4)+7x

step 1

Apply distributive property

3(x+4)+7x=3(x)+3(4)+7x

3(x)+3(4)+7x=3x+12+7x

step 2

Combine like term

3x+12+7x=(3x+7x)+12

(3x+7x)+12=10x+12

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What is completely factored form of d^4-81
romanna [79]

Answer:

(d − 3) (d + 3) (d² + 9)

Step-by-step explanation:

d⁴ − 81

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5 0
3 years ago
Consider a sample on the waiting times (in minutes) at the billing counter in a grocery store to be 15, 24, 18, 15, 21, 20, 15,
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The mean, median, and mode is 18.5, 19, 15.

We have

15, 24, 18, 15, 21, 20, 15, 22, 19, 16, 15, 22, 20, 15, and 21.

In ascending order:

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n=15(number of observations)

The median is \frac{n+1}{2} \\= > \frac{16}{2} =8th term

Median: 19.

Mean:

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Mode: 15.

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brainly.com/question/18060320

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