When graphed, which parabola opens downward?

a. y = - 3x2

b. y = (x - 3) 2

c. y = 1/3x2

d. y = x2 - 3

Mary is making pillows. She bought 2 1/2 yards of fabric. She has $15. What was the cost per yard?

Find the product 2y^2 (3x+5z)

A square pyramid with a = 20 mm and b = 96 mm is shown. What is the length of side c? * Hint: you must divide the "b" by two to find the base of the right triangle

A pet store has 25 blue parakeets, 12 green parakeets and 10 yellow parakeets. If two parakeets are randomly selected, what is the probability that both are green?

What is - 3 + ( - 4) evaluated?

Evaluate 3y² - 2y + 8, when y = 5

The area of the trapezoid is 24 and the bases are 3 and 5. find the height. 3 3.2 6

A store sells pots in sets of 4 and plant seedlings in sets of 10. The store sells the same number of individual pots and seedlings on the same day. What is the least number of sets of pots the store could have sold for this to to be true?

When Esme woke up, the temperature was 5.3 degrees below zero. By noon, the temperature had increased by 12.8 degrees. Complete the statements to explain how to determine the temperature at noon.

Your middle schools has decided to start a gardening club. You have been gifted with 140 m of fencing to protect your garden.