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Bogdan [553]
2 years ago
12

Rewrite the expression 7x+21=

Mathematics
2 answers:
Furkat [3]2 years ago
7 0
You must find the factors of 7 and 21. Which is 7.

7(x+3)

And that's one way to rewrite this expression :)
Dima020 [189]2 years ago
5 0
Minus the 21 from the other side of the equation making it 7x=-21 then u divide the 7 from the x to the -21 resulting in x=-3
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​ b(1)=−7 b(n)=b(n−1)+12 ​ Find the 4th term in the sequence
forsale [732]

4th term = 29

to generate the terms, substitute n = 2, 3, 4 into the rule

noting that b(1) = - 7

b(2) = b(2 - 1) + 12 = b(1) + 12 = -7 + 12 = 5

b(3) = b(3 - 1) + 12 = b(2) + 12 = 5 + 12 = 17

b(4) = b(4 - 1) + 12 = b(3) + 12 = 17 + 12 = 29




8 0
3 years ago
Read 2 more answers
Mrs. Wood made 7 batches of cookies. She used a total of 15.75 cups of flour. What is the unit rate for flour for one batch of c
VARVARA [1.3K]

Answer:

2.25 cups

Step-by-step explanation:

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3 0
3 years ago
A triangle has an area of 160 square inches. If it has a height of 10 inches, what is its base length?
inn [45]

Answer:

The answer is:

32 inches

Step-by-step explanation:

The reason to why is because a triangle's area is always length times height divided by 2. In this case we need to reverse the steps and multiply 160 by 2 to get 320. Then divide the area of 320 by 10 to get 32 inches to be the base length.

Hope you have a wonderful day :)

6 0
3 years ago
Help me please please I beg
alexdok [17]

Answer:

cm

Step-by-step explanation:

if using centimeters to determine the perimeter then it's just cm.

If you're using centimeters to determine area it would be cm^2.

If you're using centimeters to determine volume it would be cm^3.

I hope this helps you. Have a blessed day.

:);)

7 0
2 years ago
Number 4 i don’t know how to do this one
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Answer:

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Step-by-step explanation:

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