8. Let P(t) = 5000 (e-aj. 9. Suppose that 9. Suppose that $5000.00 is deposited

Question

8. Let P(t) = 5000 (e-aj. 9. Suppose that 9. Suppose that $5000.00 is deposited in an accou How long will it take for the balance to reach S14 paying 6% 10. Suppose that $7055.10 is deposited in an account e long will it take for the balance to reach $12,000 paying 7% nt paying 6% interest 11. Suppose that money is deposited in an account How much money was deposited in the 12. Suppose $4892.00 is deposited into an account. Find the ,000.00 per interest year, compounded rate of 3.2% per year. account given that it will reach $s500.00 in 4 yearst paying 5% interest per year, compounded per year, comp 13. Suppose $9612.70 is deposited into an account. Find the given growth rate of 5% per year. 15. I et n(2) be the function n (x)-a,2-8r+1. Find and simplify n(f t find the (a) y = Let P(z) be the function p(r) = 3r2-5r. Find and sirnplif doubling time given that it has a e the function n(x) = x2-8x doubling time given that. it . Which of t of the following functions given below are power functio power, p, and the constant of proportionality, k. p(2 + h) -p(2) (23 )1.5 6.7 n(t2 (b) y= 2.718 (c) y= 7(2*)

Explanation / Answer

from above: p(2+h) -P(2) =(3*(2+h)2-5*(2+h))-(3*22-5*2) =(3*(4+h2+4h)-10-5h) -(12-10)

=(12+3h2+12h-10-5h)-2 =3h2+7h

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