Solve and check. Begin by using the addition or multiplication principles of equality to isolate the squared term. -3x2 = -33
A. 16.5
B. ±11
C. ±
D. 12
Answer: C
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Find all vertical asymptotes of the given function.R(x) = 
A. x = -11, x = 7 B. x = -7, x = -30, x = 11 C. x = -11, x = 0, x = 7 D. x = -7, x = 0, x = 11
Find the unit vector in the same direction as the given vector.v = 3i + j
A. u = 
i + 
j
B. u = 
i + 
j
C. u = 
i + 
j
D. u = 3
i + 
j
Solve the problem.Anne and Nancy use a metal alloy that is 25.44% copper to make jewelry. How many ounces of a 25% alloy must be mixed with a 27% alloy to form 100 ounces of the desired alloy?
A. 78 oz B. 80 oz C. 27 oz D. 22 oz
Find the solution set for the system by graphing both of the system's equations in the same rectangular coordinate system and finding points of intersection.4x2 + y2 = 4 y2 - 4x2 = 4 
A. {(0, -2), (0, 2)} B. {(0, 4)} C. {(2, 0), (2, 0)} D. {(0, -2)}