Evaluate the expression for the given replacement values. Write the answer in simplest form.x + y for x = 
, y = 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the exact value using a double-angle identity.sin 
A. 
B. 
C. 
D. 
Mathematics
Plot the point in the xy-plane. Tell in which quadrant or on what axis the point lies.(-5, 0)
A. 
Quadrant II
B. 
x-axis
C. 
x-axis
D. 
y-axis
Mathematics
Graph using a graphing calculator.
+ 
= 1
A. 
B. 
C. 
D. 
Mathematics
Find a ? b.a = 8i + 6j, b = -2i + 4j
A. 40
B. 8
C. 
D. 
Mathematics