Simplify the expression.
A. 28
B. 9
C. 
D. 
Answer: D
Mathematics
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Evaluate the expression for the given replacement values.2x + y
for x = 8 and y = -9
A. 25 B. -1 C. 7 D. 17
Mathematics
Multiply and simplify. Assume that all variables represent positive real numbers.(11
)2
A. 121
B. 11y2
C. 121y2
D. 121y
Mathematics
Find an equation for the graph.
A. y = 5 cos 
B. y = -5 sin 
C. y = -5 sin 
D. y = -5 sin (3x)
Mathematics
Decide whether the given sequence is finite or infinite.a1= 9; for n ? 2, an= 6?an-1+ 3
A. Infinite B. Finite
Mathematics