Answer:
A. -9n + 20
Step-by-step explanation:
First, distribute -5 to all terms within the parenthesis:
-5(2n - 4) + n
(-5 * 2n) + (-5 * -4) + n
-10n + 20 + n
Simplify. Combine like terms:
(-10n + n) + 20
(-9n) + 20
A. -9n + 20 is your answer.
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Represent the thickness of the frame by x. Framing the mirror will increase both its length and width by 2x. The area of the mirror with the frame is the product of the length and width which can mathematically be expressed as,
A = (3 + 2x)(2 +2x) = 8
The equation above can be simplified into 4x^2 + 10x -2 = 0. This equation can still be further simplified by dividing it by 2. However, it will give an answer which is not found on the choices. Thus, the answer is the third choice.
Answer:
The answer is 8.25 ( No CALCULATORS) - solves from my brain :)
Step-by-step explanation:
99 divided by 12 in decimal = 8.25
99 divided by 12 in fraction = 99/12
99 divided by 12 in percentage = 825%
Answer & Step-by-step explanation:
The formula is given in the middle. You are supposed to insert the value of x into this formula to find the value of y (like in the first given example):
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:Done
