3 years ago

Simplify the expression:

Mathematics

1 answer:

DedPeter [7]3 years ago

6 0

Answer:
6

Process:
(Picture attached)

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Plot a point at (0,-1)
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3 years ago

What value represents the solution of y-3.6=9?

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Step-by-step explanation:

$y - 3.6 = 9 \\ \\ \therefore \: y = 9 + 3.6\\ \\ \therefore \: y = 12.6$

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14d + 21 and<br> 7(2d + 3)

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Answer:

the answer is 28d + 42

Step-by-step explanation:

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3 years ago

Read 2 more answers

1) Solve the following system of equations algebraically. Give your solution as two

Bad White [126]

For this case we have the following system of equations:

$y = x ^ 2 + 7x + 12\\y = 2x + 8$

Equating both equations we have:

$x ^ 2 + 7x + 12 = 2x + 8\\x ^ 2 + 7x-2x + 12-8 = 0\\x ^ 2 + 5x + 4 = 0$

We must find the solutions, for this we factor. We look for two numbers that, when multiplied, result in 4 and when added, result in 5. These numbers are 4 and 1:

$4 + 1 = 5\\4 * 1 = 4$