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Alex Ar [27]
3 years ago
15

Evaluate xy-(-2z) for x=10, y=2, and z=-3. a. 6 b. 26 c. 16

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
6 0

B. 26

10*2-(-2*-3)

20-(-2*-3)

20-6

14

Paul [167]3 years ago
5 0

(10)(2)-(-2)(-3)

20-6

14

I feel I did this right but its not matching to the answer choices. Does it give anymore information?

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vova2212 [387]
<h2>Answer:</h2>

The answer is 16.

<h2>Step-by-step explanation:</h2>

Since the 8x is positive, the equation  must have y as a positive number.

Let's see this!

An easy way to complete the square if you have the constants for x2 and

But not the non-variable number is to divide the x constant, and then square it.

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\frac{8x}{2} \\\\4^2=16\\

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