Answer:
the third one 10 cm, 9cm 9cm
Answer:
The amount is $8358.7 and the interest is $3858.7.
Step-by-step explination
STEP 1: To find amount we use formula:
A = P
1 +
r
n
n·t
A = total amount P = principal or amount of money deposited, r = annual interest rate n
= number of times compounded per year t = time in years In this example we have
P = $4500 , r = 7% , n = 2 and t = 9 years
After plugging the given information we have
A = 4500
1 +
0.07
2
2·9
A = 4500 · 1.03518
A = 4500 · 1.857489
A = 8358.7
STEP 2: To find interest we use formula A = P + I, since A = $8358.7 and P = $4500 we
have:
A = P + I
8358.7 = 4500 + I
I = 8358.7 − 4500
I = 3858.7
Answer:
The volume is equal to 
Step-by-step explanation:
step 1
Find the radius of the base of cylinder
we know that
The circumference of a circle is equal to
we have
assume
substitute and solve for r
![r=87.92/[2(3.14)]=14\ cm](https://tex.z-dn.net/?f=r%3D87.92%2F%5B2%283.14%29%5D%3D14%5C%20cm)
step 2
Find the volume of the water tank (cylinder)
The volume is equal to
we have
assume
substitute
Answer:
A
Step-by-step explanation:
u can just test them out
