How many gallons of 26% butterfat cream must be mixed with 300 gallons of 2% butterfat milk to obtain a 6% butterfat milk?
?
A. 12 gallons
B. 90 gallons
C. 6 gallons
D. 60 gallons
E. 62 gallons
Answer: D
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Which of the following is not an example of glide reflections? ?
A. ?Some frieze patterns along the top of some old buildings. B. ?The footprint pattern along a beach. C. ?The symmetry of the human face. D. ?Some wallpaper designs. E. ?Some of Escher's paintings.
Find the vector projv u.v = 7i - 3j + k, u = -4j + 3k
A. 
i - 
j + 
k
B. 
i - 
j + 
k
C. - 
j + 
k
D. - 
j + 
k
Find the surface area or volume.The region between the curve y = 
, 0.4 ? x ? 0.9, and the x-axis is revolved about the x-axis to generate a solid. Use a table of integrals to find the volume of the solid generated to two decimal places.
A. 1.12 B. 0.93 C. 0.88 D. 1.04
Find an equation for the sphere with the given center and radius.Center (-4, 9, 0), radius = 10
A. x2 + y2 + z2 - 8x + 18y = 3 B. x2 + y2 + z2 + 8x - 18y = 3 C. x2 + y2 + z2 - 8x - 18y = 3 D. x2 + y2 + z2 + 8x + 18y = 3