Solve.x2 + 8x = 3
A. -1 ± 
B. 4 + 
C. -4 ± 2
D. -4 ± 
Answer: D
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.y = 8x3, y = 8x, for x ? 0
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
If n is a natural number, then 10-n = 
. Negative powers of 10 can be used to write the decimal part of Hindu-Arabic numerals in expanded form. Express the expanded form as a Hindu-Arabic numeral.(2 × 1) + (5 × 10-1)
A. 7 B. 0.10 C. 25 D. 2.5
Mathematics
Find the phase shift of the function.y = -2 sin 
A. 
units to the left
B. 
units to the right
C. ? units to the left
D. ? units to the right
Mathematics
Solve the problem.In a two-card hand, what is the probability of holding only face cards? (Aces are not face cards.)
A. 
B. 
C. 
D. 
Mathematics