Which of the following quadratic functions has a graph that opens downward?

Check all that apply.

A. y=2x-x^2

B. y = 1/3x^2-8x-13

C. y=2/3x^2-13x+5

D. y = - (3+x^2)

... ?

Can you explain how a table can be used to find the rate of change

Sherrod deposits 500 each year in savings account earning 3% interest compounded annually. he makes no withdrawal. how much interest will the account earn after 3 years

5 (-3y-1) - (6-5y) if y=-6

Semi annually means how many times a year?

A quadrilateral that has opposite sides congrueng opposite sides parallel and opposite angles congruent is called. (A) rectangle (B) square (C) parallelogram (D) rhombus (E) none

The cross section of a metal ingot is is a trapezoid the cross-section of an area of 39 square centimeters the top base of a cross section is 12 CM the length of the bottom base is 2 cm greater than the top base how tall is the Metal Ingot. explain

17=14 3/4 + 1/6 + missing number

The world record for the women's 3,000-m steeplechase is 9 min 1.59 s. Find the runner's speed in meters per second. Round answer to the nearest hundredths.

A rectangle has an area of 85 square cm. If the length is 2 more than 3 times its width, find the dimensions of the rectangle

If arrivals occur at a mean rate of 3.6 events per hour, the exponential probability of waiting more than 0.5 hour for the next arrival is: