Solve the problem.The magnitudes of two stars, A and B, are 5 and 13, respectively. Compare the brightness of these stars.
A. Star B is ? 3.98 × 103 times brighter than star A.
B. Star A is ? 1.00 × 104 times brighter than star B.
C. Star A is ? 1.00 × 1016 times brighter than star B.
D. Star A is ? 1.58 × 103 times brighter than star B.
Answer: D
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Determine whether the set is well defined or not well defined. The set of manufacturers of computers that enjoyed sizeable profits in the second quarter of 2012
A. not well defined B. well defined
Factor completely.32x2 - 32x + 8
A. 8(2x + 1)(2x - 1) B. 8(2x - 1)2 C. 8(4x2 - 4x + 1) D. (16x - 8)(2x - 1)
Write a fraction to represent the shaded area of the figure.
A. 
B. 
C. 
D. 
Estimate the value of the quantity.The table shows the velocity of a remote controlled race car moving along a dirt path for 8 seconds. Estimate the distance traveled by the car using 8 subintervals of length 1 with left-end point values.
A. 154 in. B. 169 in. C. 328 in. D. 164 in.