Evaluate.x3
for x = 4, y = 5
A. 12
B. 8
C. 64
D. 125
Answer: C
Mathematics
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Find an algebraic expression for the given expression.cos(2 cos-1 x)
A. -1 B. 1 C. 2x2 - 1 D. 2x2 + 1
Mathematics
Use the distributive property to write the sum as a product.20 ? 1 + 20 ? z
A. (20 + 20z) B. 21(z) C. (20z) D. 20(1 + z)
Mathematics
Find the domain of the given function.f(x) = 
A. [-3, ?)
B. (3, ?)
C. (- 
, ?)
D. [
, ?)
Mathematics
Find an equation for the line with the given properties.Perpendicular to the line 3x - y = 4; containing the point (0, 
)
A. y = - 
x + 
B. y = 
x + 
C. y = - 
x + 4
D. y = 1
Mathematics