State whether the parabola opens upward or downward.y = 6x2 - 4x + 7
A. Upward
B. Downward
Answer: A
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??If the scale factor of a figure is 1/2, then what can we say about the area of the dilation? ?
A. ?The area will be 1/2 of the original figure. B. ?The area will be twice the original figure. C. ?The area will be 1/4 of the original figure. D. ?The area will be four times that of the original figure. E. ?The area will be two 1/2 more than the original figure.
Divide and simplify.
A. 
B. 
C. 
D. 
Find the square root.
A. 100
B. 
C. 
D. 10
Solve the problem.The function A(r) = 4?r2 gives the surface area of a sphere. Find A(1) and interpret. Round to the nearest hundredth, if necessary.the area when the radius is 1 in.
A. A(1) = 37.7; The value of A(1) is the surface area, in square units when the radius is 1 unit(s). B. A(1) = 12.57; The value of A(1) is the measure of the radius when the surface area is 1 square unit(s). C. A(1) = 37.7; The value of A(1) is the measure of the radius when the surface area is 1 square unit(s). D. A(1) = 12.57; The value of A(1) is the surface area, in square units when the radius is 1 unit(s).