Where r is written as a decimal. what is the formula for the interest rate, r; required to achieve a balance of b in the account after 3 years?

Option b

r = -1 + (∛B/10)

Step-by-step explanation:

Given in the question that formula to calculate future amount B, after 3 years if principal amount 1000 is deposit with interest rate r is

B = 1000(1+r)^3

B/1000 = (1+r)^3

∛(B/1000) = 1 + r

∛B/∛1000 = 1 + r

∛B/10 = 1 + r

(∛B/10) - 1 = r

r = -1 + (∛B/10)

395.84

step-by-step explanation:

2πrh+2πr²

2 (pie)(radius)(height)+2(pie)(radius)^2

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft