The table below shows the fifth roots of different numbers:
number (x) 32 −32 243 −243
fifth root of the number (y) 2 −2 3 −3
part a: does the table represent y as a function of x? justify your answer. (5 points)
part b: the total cost f(x), in dollars, for renting a boat for x hours is shown below:
f(x) = 7x + 5
what is the value of f(5) and what does f(5) represent? (5 points)

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

The cost of a taxi ride includes an initial charge of $2.00. if a 5km ride cost $6.00 and a 10km ride cost $10.00, determine the cost of a 15km ride.

Solve for x where 0 equation: cot^2x+2cotx+1=0