Solve the equation.4|x| = 512
A. 
B. ± 
C. -9
D. ±18
Answer: B
Mathematics
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Express the number in scientific notation.0.00005763
A. 5.763 x 105 B. 5.763 x 10-4 C. 5.763 x 10-5 D. 5.763 x 104
Mathematics
Find the sum Sn of the first n terms of the geometric sequence. -4, -8, -16, -32, -64, . . . ; n = 8
A. -1040 B. -983 C. -1018 D. -1020
Mathematics
Write a system of inequalities whose solution set is the region shown.
A. x2 + y2 ? 16 x ? 0 B. x2 + y2 ? 16 y ? 0 C. x2 + y2 ? 16 x ? 0 D. x2 + y2 ? 16 x ? 0
Mathematics
Divide, if possible. Write the answer in simplest form.
÷ 
A. 
B. 
C. 
D. 
Mathematics