Solve the problem.What is the ratio of the surface areas for a pair of spheres when the ratio of the radii is 3:2?
A. 3 : 2
B. 9 : 4
C. 27 : 8
D. Not enough information given
Answer: B
Mathematics
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Translate the percent problem to a proportion using x for the unknown value. Do not solve the proportion.50% of 86 is what?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Find a quadratic equation with integer coefficients that has the given solution set.
A. 4x2 - 25x - 21 = 0 B. 4x2 + 25x - 21 = 0 C. 4x2 + 32x + 21 = 0 D. x2 - 25x - 21 = 0
Mathematics
Translate to a proportion and solve. $22 is 5% of what?
A. $44 B. $4400 C. $440 D. $110
Mathematics
Use integration by parts to find the integral. Round the answer to two decimal places if necessary.
A. -2.27 B. -1.33 C. -0.94 D. 0.39
Mathematics