Factor the polynomial.x2 + 16
A. (x + 4)2
B. (x - 4)2
C. (x + 4)(x - 4)
D. prime
Answer: D
Mathematics
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Evaluate the expression.4 - 10
A. -14 B. -6 C. 14 D. 6
Mathematics
Graph the region described by the inequality.5x ? -4y
A. 
B. 
C. 
D. 
Mathematics
A grain silo has the shape of a right circular cylinder surmounted by a hemisphere (see the figure). If the silo is to have a capacity of 604? ft.3, find the radius and height of the silo that requires the least amount of material to construct.
?
Hint: The volume of the silo is 
, and the surface area (including the floor) is 
.
?
?
A. 
B. 
C. ?
D. ?
Mathematics
Solve the exponential equation.57x = 125
A. 125
B. 243
C. 
D. 
Mathematics