You invest $7900 into an account that earns 2.9% interest compounded quarterly. a) Write a model giving the account balance A after t years.
b) What is the amount in the account after 14 years?
c) What is the account balance after 14 years if compounded monthly?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Simplify the expression 10/11(22z) + (a+5) -1