Answer:
B. Equilateral, and C. Acute.
Step-by-step explanation:
D. When you do the math, the results to everything should be t=9. D is the only outlier. Therefore, D is the answer in this case.
For this case we must find the inverse of the following function:

For this, we follow the steps below:
We change f (x) to y:

We exchange the variables:

We solve for y:

We divide between 8 on both sides of the equation:

We raise both sides of the equation to the square to remove the root:

So, the inverse is:
ANswer:
Option C
1 m = 100 cm
Multiply:
100 * 400 = 40000
So she ran 40,000 centimeters.