I need help to solve the questions thank you 5) A = P(1?) nt You invest $1000 in

Question

I need help to solve the questions thank you

5) A = P(1?) nt You invest $1000 in a bank account that pays 8.0 percent compounded quarterly, write the equation that models this investment: How much money will you have in the account after five years? How long will it take the money to grow to $2500? A function has the form ffx) - 800(.75)* What is the value of this function when x 5.5? When will this function have a value of 100? A ball is thrown vertically at a speed of 55 ft/sec from the top of a 150 ft building. If gravity has a value of -16 ft/sec', what is the equation that describes the balls height as a function of time? Sketch a graph of this function. 6) H(t)- What is the ball's maximum height? When will the ball reach the ground? Three tacos and one soda cost $3.80. Four tacos and two sodas cost $5.90. What is the cost of a soda? What is the cost of a taco?

Explanation / Answer

5) A = P ( 1 + i/n )^nt

8% compounded quarterly

A = P ( 1 + .08/4 )^4t

A = 1000 (1.02)^4t

money after 5 years

A = 1000 (1.02)^20

so money after 5 years  

A = $ 1485.95

2500 = 1000 ( 1.02)^4t

2500/1000 = 1.02^4t

t = 11.57 years

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