This looks like common core which is never straight forward.It seems as though they are asking for the perimeter and not area,since they used feet for the distance around instead of sq.ft.
Answer:
535.07
Step-by-step explanation:
S=P(1+ i) ^n
i= nominal rate of interest / number of compounding periods
i =. 06/12
=0.18
Divided by 100
=0.0018
n- number of times interest is given per year x the number of years
n=12x3
=36
8000(1+0.0018)^36
=8535.07
Interest
8535.07 - 8000
=535.07
At the time the cannonball reaches the ground, the vertical height of the cannonball from the ground is 0, i.e. h = 0.
Thus, the time it will take the cannonball to reach the ground is given by

Therefore, it will take the cannonball 8 seconds to reach the ground.
Answer:
x=3
Step-by-step explanation:
Answer:
2. Alex sent the questionnaire only to those who live near her.
Step-by-step explanation:
Given scenario is :
Alex is conducting a survey for a car company. She decides to start by interviewing some people in her neighborhood.
She prepares a questionnaire and emails it to 50 neighbors who own cars. Of those neighbors, 24 respond.
We can see that Alex sent the questionnaire to only her neighbors or people who live near her, so this will be the reason the sample will be biased.