1. Erin hits a golf ball off a tee. The height, yin yards, of the ball off the ground is given by
y = -0.0018x2 + 0.45x + 0.05, where x is the horizontal distance from the tee in yards. What is
the maximum height of the ball? Round to the nearest tenth.

The maximum height of the ball is 28.2 yards.

Step-by-step explanation:

When we have a quadratic equation in the following format:

The maximum value happens when

The maximum value will be

In this problem, we have that:

So

The maximum height is:

The maximum height of the ball is 28.2 yards.

x/7.50 = 15

x= 7.50 / 15 divide

step-by-step explanation:

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.