Step-by-step explanation:
f(x) = x² - 4
y = x²-4
x = y²-4
x + 4 = y²

Answer:
b. Engine oil E will cause a significant improvement is gas mileage.
Step-by-step explanation:
The research was conducted with the random vehicles who were introduced with Engine oil E. When compared with engine oil E and the generic oil the vehicle that uses engine oil E performed better. The gas mileage of such vehicles improved significantly as compared to other vehicles who received generic oil.
Answer:
20.14
Step-by-step explanation:
21.15 - 5%(1.01) = 20.14
Answer:



Step-by-step explanation:
Given
See attachment for triangle
Required
Find
and
of angle Y
For angle Y:


The
of an angle is calculated as:

So:

The
of an angle is calculated as:

So:

The
of an angle is calculated as:

So:

Answer:
62 x 10 =620
Step-by-step explanation:
multiply