3 years ago

Please help these are not easy for me

Mathematics

1 answer:

Pavel [41]3 years ago

7 0

Answer:

12a^2 - 9a + 5

Step-by-step explanation:

(5a^2 - 6a - 4) - (-7a^2 + 3a - 9)

5a^2 + 7a^2 = 12a^2

-6a - 3a = -9a

-4 + 9 = 5

12a^2 - 9a + 5

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A mole of 1 gallon cans of paint could cover every square inch of the surface of how many planets the size of the earth?

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Step-by-step explanation:

We ll have to find more information first to solve this question.

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Enter the correct answer in the box. Write the sum of √28x^6 + 4√7x^6 in simplest form, if x ≠ 0.

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T=v /6 + 5<br> a) Work out the value of T when v = 42

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The value of T in the equation if v = 42 is 12

<h3>How to solve algebra</h3>

Given:

T= v /6 + 5

If v = 42, find T

substitute 42 for v in the equation

T= v /6 + 5

T = 42/6 + 5

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brainly.com/question/4344214

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