Sierra is getting her car fixed at a mechanics. The total cost after tax is represented by 0.065(30h) + 30h, where h represents the number of hours it takes to repair the car. What part of the expression represents the amount of money she will have to pay in tax? Explain.

Given :

Sierra is getting her car fixed at a mechanics. The total cost after tax is represented by 0.065(30h) + 30h, where h represents the number of hours it takes to repair the car.

To Find :

What part of the expression represents the amount of money she will have to pay in tax.

Solution :

Total cost , T = 30h( 1 + 0.065)

T = 30h + 30h(0.065)

T = (30h) + (30h )× 6.5 %

Here, 30h is the cost of repairing the car.

Other part shows the tax she have to pay which is 6.5% of the total amount.

Hence, this is the required solution.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

the correct answer is d

hope this