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Suppose a company charges an annual premium of \$130 for an insurance policy for minor injuries. Actuarial studies show that in case of an injury claim, the company will pay out an average of \$900...

If a ball is dropped from the top of a 120 m cliff its height h in meters after t seconds can be modelled by h(t)=120-4.9t^2 Find the average of change of height of the ball with respect to time...

Fifteen thousand raffle tickets are sold. One prize of \$2000, two second prizes of \$750, and three third prizes of \$300 each will be awarded, with all winners selected randomly. If you purchase...

What amount is required to purchase an annuity that pays \$3000 at the end of each quarter for the first five years and then pays \$2500 at the beginning of each month for the subsequent 15 years...

Apex Fabricating wants to accumulate \$545,000 for an expansion expected to begin in four years. If today Apex makes the first of equal quarterly payments into a fund earning 6.6% compounded...

There are two round objects that have a 50 cm diameter and are 2 cm away from eachother that have a belt around them both how long is the belt?   Could somebody explain me how to solve...

the gravitational attraction A between two masses varies inversely as the square of the distance between them. The force of attraction is 2.25lb when the masses are 4ft apart what is the attraction...

If an amount of money, called the principal ,P, is deposited and earned interest at a rate, r, compounded yearly then in two yrs will grow to an amount, A, given by the formula A=P(1+r)^2. If...

The graph of the function y=f(x) is given. On the same axis, sketch  the graph and write points of f^-1(x). Use a dashed line for the inverse function.