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3 years ago

Which equation is equivalent to startroot x^2 + 81 EndRoot = x + 10?

Mathematics

1 answer:

Nitella [24]3 years ago

3 0

Answer:given below

Step-by-step explanation:

sqrt x^2 +81= x + 10

x^2 + 81 = (x+10)^2

x^2 + 81 = x^2 + 20x + 100

so answer is:

x^2 + 81 = x^2 +20x + 100

..HOPE IT HELPS YOU...ALL THE BEST

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Tcecarenko [31]

Answer:

See Explanation

Step-by-step explanation:

Define the variables

Let the entry fee be c and the hourly rate be m

Let the number of hours be x and the total amount be y

Work to solve

For Sami's skate

$c = 6$ and $m = 2$

For Brad's skate

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The equations

The equation is derived using: $y = mx + c$

For Sami's skate

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For Brad's skate

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When the cost are the same

To do this, we equate both expressions

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$2x -x = 10 - 6$

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2 years ago

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kifflom [539]

Answer:

The area he can cover with that weapon is 1,256 miles².

Step-by-step explanation:

Assuming that the Jedi won't move and that he can shoot in every direction, he'd be shooting at a circle with a radius of 20 miles. Therefore the are that he can cover with that weapon is the area of the circle, which is shown below:

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