2 years ago

Hello can u tell me if the answer and work is correct if not tell me

Mathematics

2 answers:

ohaa [14]2 years ago

4 0

Your work seems to be correct

Umnica [9.8K]2 years ago

3 0

Hi.
Your work appears to be correct. If you still doubt it,try running your answers through a calculator, or try plotting the points on a line to see if it corresponds with the other points

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Find the number to add to x^2-18x

pentagon [3]

Answer:

A. add 81; $(x-9)^2$

Step-by-step explanation:

The perfect square formula

$(a-b)^2=a^2-2ab+b^2$

Rewrite expression $x^2-18x$ as follows:

$x^2-2\cdot 9\cdot x$

So, to form a perfect square, $+9^2$ is missed.

When we add $9^2=81,$ we will get

$x^2-2\cdot 9\cdot x+9^2=(x-9)^2$

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Andreas93 [3]

Answer:

-1152

Step-by-step explanation:

abc² the expression can be rewritten using the given values for each letter

(-3)*6*(-8)^2 now we find the second power of (-8) by multiplying it with itself

(-8)*(-8) = 64

(-3)*6*64 = -1152

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2 years ago

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malfutka [58]

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The answer is = B. 75

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sergiy2304 [10]

Since it’s vertical it would be x=-7

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mrs_skeptik [129]

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Step-by-step explanation:

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