22. RACING The design of an elliptical racetrack with an eccentricity of 0.75 is shown. (Example 4)
W
1000 ft
a. What is the maximum width w of the track?
b. Write an equation for the ellipse if the origin x is
located at the center of the racetrack.

The system of equations graphed below has how many solutions?

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone