ANSWER
Period: 2π , amplitude: 4
EXPLANATION
The graphed function is

The amplitude of this function is

The period is 2π because there is no phase shift hence the period is still equal to the parent function.
Period: 2π , amplitude: 4
Calculating x=3 and x=5, we get f(x)=10 and 4 respectively by plugging the numbers into the equation. Finding the difference and dividing by 2 (since there are 2 seconds between 3 and 5), we get 3, so the answer is either A or C. Since it doesn't only fall 3 feet, we need to specify that it is 3 feet per second, A is right!
The tax is $18.90
(9/100) x 120 = $18.90
hope i helped :)
Answer:
z = -3
Step-by-step explanation:
<u>Use the formula for z-score</u>

This tells us that the person's score of 150 puts him/her 3 standard deviations below the mean of 300.
315.
15 tens:150
2 hundreds: 200
150+200= 350