Answer: 2.81 s
Step-by-step explanation:
Given
Ball is kicked upward with velocity 
Height of the ball is given by the function 
Derivative of a function gives the maxima or minima at certain point

Thus, it takes ball 2.81 s to reach the top.
Answer:
that will be 768!!!
Step-by-step explanation:
Answer:
820
Step-by-step explanation:
Some people may get confused and just calculate this question from left to right, but I was taught to use this formula:
Brackets
Exponents
Division
Multiplication
Addition
Subtraction
--------
So lets multiply first,
163 × 80 = 13,040
153 × 47 = 7,191
153 × 33 = 5,049
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Next, we subtract:
13,040 - 7,191 - 5,049 = 820
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Have a good day :)
Answer:
The expression for rate per hour is
.
Explanation:
Given:
A machine paints 340 toy boats in 45 minutes.
To Find:
Expression equals the rate per hour?
Solution:
Finding the expression for rate per minute:

So, rate per minute expression is
= 
Then, rate per hour expression 
So, rate per hour expression is
= 453.334 toys per hour.
Hence, the expression for rate per hour is 