X 25
50
175
1100
1125
150
175
у
150
(178
216
265
1323
392
1470.4
a.
Use the quadratic regression feature of a graphing calculator to find a quadratic model. Round to the nearest
thousdandths place.
y = 7.821x2 - 0.936x - 94.034
b. y=-7.821x? +0.936x - 94.034
y = 0.008x2 +0.518x + 131.886
d. y = 0.008x2 - 0.518x - 131.886
C.

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

Let r = 3. what is the value of r + 58?

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.