3 years ago

Which expression is equivalent to 7(-3k)

Mathematics

1 answer:

rosijanka [135]3 years ago

8 0

Answer:

-21k=7(-3k)................………………

You might be interested in

A patient with end-stage kidney disease has nine family members who are potential kidney donors. How many possible orders are th

eduard

Answer: 504

Step-by-step explanation:

When we select r things from n things in a order , we use permutations.

Formula for permutation: $^nP_r=\dfrac{n!}{(n-r)!}$

Given : The number of family members who are potential kidney donors. = 9

Number of people needed to be selected for best match, a second-best match, and a third-best match ( in an order)=3

Then, the number of possible orders are = $^9P_3=\dfrac{9!}{(9-3)!}$

$=\dfrac{9\times8\times7\times6!}{6!}=504$

Hence, the number of possible orders 504.

4 0

3 years ago

Jenny drove 1,255 miles last week. She drove 187 miles on Monday. On Tuesday, she drove 53 more miles than on Monday, on Wednesd

geniusboy [140]

The answer should be 401

4 0

3 years ago

THOROUGHLY EXPLAIN how this is done plz

prisoha [69]

First and last terms of the given equation are perfect squares. They can be written as

(4p^2)^2+ 2.(4p^2).5+(5)^2
It's like identity 1: (a+b)^2=a^2+2ab+b^2
So a=4p^2 and b=5
Therefore it is equal to (4p^2+5)^2

8 0

3 years ago

Marvin used apples to make apple bread the ratio of apples two loaves is 12:2.What is the equivalent fractions for five loaves o

nikklg [1K]

Try 6 X 2? Maybe this works

7 0

2 years ago

Donner has decrease toy production 10%. Toy production was 400 toys. Which equation represents the new toy production?

Marta_Voda [28]

I think the correct answer is D
Hope this help!

4 0

2 years ago

Read 2 more answers