Evaluate each expression x=-3,y=6,z=-4what is x+y+(-1)

Mathematics

1 answer:

Alex_Xolod [135]2 years ago

8 0

substitute the numbers.

-3 + 6 - 1

= 2

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Rainbow [258]

Your answer is B. 2
This is because to rationalise the denominator, we need to multiply it by (3 - √7), so we get:
(3 + √7)(3 - √7)
3 × 3 = 9
3 × √7 = 3√7
3 × -√7 = -3√7
√7 × -√7 = -7
So all in all you get 9 - 7 which is 2.

I hope this helps!

4 0

2 years ago

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weeeeeb [17]

3. A 4.B 5.B Very happy to help you!

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2 years ago

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Natali5045456 [20]

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