Shari deposited $5,000 in a simple interest account that pays 3% interest annually. If she leaves the money in the account for 5 years, how much interest will she earn?

750

Step-by-step explanation:

A = P(1 + rt)

A = 5000(1 + 0.03(5))

A = 5000(1 + 0.15)

A = 5000(1.15)

A = 5750

Interest earned = 5750 - 5000

= 750

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places

ljn

step-by-step explanation: