The area under a normal curve between the scores for 
and 
is ______.
A. 0.6290
B. 0.2258
C. 0.1774
D. 0.4032
Answer: A
Mathematics
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Find the exact value, given that sin A = -4/5 with A in quadrant IV, 
with B in quadrant III, and 
with C in quadrant II.tan 2B
A. 
B. - 
C. 
D. - 
Mathematics
Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x =6, y =-1; (6, -1) B. x =-9, y =-1; (-9, -1) C. inconsistent D. x =6, y =6; (6, 6)
Mathematics
Add.-38 + (-91)
A. 129 B. 53 C. -129 D. -53
Mathematics
The sun is 20º above the horizon. Find the length of a shadow cast by a park statue that is 30 feet tall. Approximate the answer to two decimal places. ?
A. 82.42 ft B. 84.42 ft C. 85.42 ft D. 83.42 ft E. 86.42 ft
Mathematics