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3 years ago

6

If q(x)=7x^2-1 ; find Q(-10)

1 answer:

maksim [4K]3 years ago

8 0

In terms of PEMDAS, you would first find -10 squared, which is 100, and multiply it by 7, giving you 700-1. The answer would be 699.

If you weren't going by PEMDAS, then you would take 7, multiply it by -10, square that, and subtract one from it. -70^2=4,900. Subtract 1, and your answer is 4,899.

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5x - 12 = 13, solve using algebra.

ella [17]

Step-by-step explanation:

5x-12=13

5x -12 =13

+12=+12

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3 years ago

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2/5(25y - 50) + 25y simplified

Vitek1552 [10]

Answer:

$35y - 20$

Step-by-step explanation:

here's the solution :-

=》

$\frac{2}{5} (25y - 50) + 25y$

=》

$10y - 20 + 25y$

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3 years ago

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Factor the following , it is not prime

MrMuchimi

So 1/9-16z^2 this is a diffirence of two perfect squares thing
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3 years ago

2/3 + (-5/7)<br><br><br><br> .........

dmitriy555 [2]

Answer:

-1/21

Step-by-step explanation:

2/3 + -5/7

Get a common denominator of 21

2/3 *7/7 = 14/21

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A parachutist's speed during a free fall reaches 180 kilometers per hour. What is this speed in meters per second? At this speed

Darya [45]

Answer:

Speed of the parachutist is meters per second $2.083$ meter per second

Distance travelled in 2 seconds $4.167$ meter

Step-by-step explanation:

Speed of the parachutist is kilometers per hour = 180

Speed of the parachutist is meters per second $\frac{180*1000}{24*60*60} = 2.083$ meter per second

Distance travelled in 2 seconds $2.083 *2 = 4.167$ meter

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3 years ago