Answer:
It will take 6 seconds for the ball to reach the ground.
Velocity: 
.
Step-by-step explanation:
We have been given that a ball dropped from the top of a building has a height of 
meters after t seconds.
The ball will hit the ground, when height will be 0 meters, so we will equate height with 0 as:
Let us solve for t.
Taking positive square root of both sides, we will get:
Therefore, it will take 6 seconds for the ball to reach the ground.
To find the ball's velocity at , we will take the derivative of position function and evaluate derivative at .
Therefore, the ball's velocity at the moment of impact would be .
B because 360.25- 13.1 = 27.5 miles per gallon
Square's area= length/width^2
so then to find out the length or width (since they are the same in a square) you do the square root of 25 which is 5 since 5 times 5 is 25
so the square's length is 5cm
The answer to 2 is <span>√30/5 or 1.09545
First, you multiply the numerator and denominator by </span>√5.
√6x<span>√5=√30
</span>√5x<span>√5=5 (when a square root of an expression is multiplied by itself, the result is that expression) Therefore, the answer is </span><span>√30/5 or 1.09545
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