3 years ago

If I have something like -x^2 when I plug the number in, will it be positive or negative and why

1 answer:

4 0

The order of operations tells you exponentiation is done before multiplication or addition. That is, the value of x is squared before the sign is applied.

Your result will be negative for any non-zero value of x.

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3 years ago

The Perimeter of a triangle is 50 cm. One side is 7cm longer than the another side and 5 cm shorter than the third side. Find al

Aleksandr-060686 [28]

Imagine to have three segment: 1 is x, another is x+7 and the last is x-5. You know that their sum is 50, so you can write:

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3 years ago

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3 years ago

A plane can fly 550 miles in the same time as it takes a car to go 150 miles. If the car travels 80 mph slower than the plane, f

MrMuchimi

<span>The easiest way is probably noticing that the plane flies 180 miles farther than the car in the same time. And...the car goes 90 mph slower. If you imagine that they started at the same point...that means that the two trips went on for two hours (2 hours x 90 mph faster = 180 miles farther). </span>

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3 years ago