What is the quadratic regression equation for the data set?
x : -6, -4, -2, 0, 2, 4, 6
y : 4.56, 2.84, .45, 0, -1.14, -2.1, -2.48

a) yˆ=0.032x2+0.601x−0.255

b) yˆ=0.032x2−0.601

c) yˆ=0.032x2−0.601x−0.255

d) yˆ=0.032x2−0.601x

Ngrid mixes 3.6 pounds of almonds with some raisins to make a trail mix. she divides the trail mix into 12 equal portions. each portion weighs 0.7 pound. how many pounds of raisins did she use to make the trail mix? express the answer to the nearest tenth.

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Select the correct answer what is the most direct use of a compass in geometric constructions? a. to draw congruent angles b. to draw arcs of a given size c. to draw perpendicular lines d. to draw straight lines reset next next