Find the exact value in radians.cos-1 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the centroid of the region.
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Mathematics
Solve the equation. Express radicals in simplest form.x2 + 4 = 13
A. 6.5 B. ±3 C. ±2 D. 3
Mathematics
Add: (6 + j2) + (3 - j9)
a. 18 - j18 b. 3 - j7 c. 9 - j7 d. 9 + j11 e. 3 + j11
Mathematics
Using the Rule of 78, find the amount of unearned interest for the loan paid in full before the date of maturity. Round to the nearest cent.Finance charge: $736Total number of payments: 23Remaining number of payments, when paid in full: 7
A. $61.09 B. $81.45 C. $56.00 D. $74.67
Mathematics