Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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List all the elements of B that belong to the given set.B = {11, 
, -4, 0, 
, , 0.21, -8?, 0.444...}Irrational numbers
A. 
B. {
}
C. {
, -8?}
D. {
, -8?, 0.444...}
Mathematics
Translate the equation into a sentence by using the phrase "varies directly" or "varies inversely". s = kv
A. v varies directly as s. B. s varies inversely as v. C. v varies inversely as s. D. s varies directly as v.
Mathematics
Find the asymptotes of the hyperbola.(x + 4)2 - 16(y + 3)2 = 16
A. y + 3 = ± 4(x + 4)
B. y - 3 = ± 4(x - 4)
C. y + 4 = ± 
(x + 3)
D. y + 3 = ± 
(x + 4)
Mathematics
Simplify the expression.2 cos2 4x - 1
A. cos 4x
B. 2 sin 4x
C. cos 8x
D. 
sin 16x
Mathematics