Find all solutions of the equation in the complex number system.9x2 + 16 = 0
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.Two forces, of 52.0 and 51.7 lb, forming an angle of 165.6°, act at a point in the plane. Find the magnitude of the resultant force.
A. 13.0 lb B. 103.7 lb C. 2603.9 lb D. 102.9 lb
Mathematics
Solve the problem. Round to the nearest cent unless otherwise noted.Find the monthly payment required to accumulate $400,000 in 15 years at an APR of 8% compounded monthly for an annuity.
A. $1155.94 B. $770.84 C. $1004.96 D. $878.23
Mathematics
Find the area.
A. 197.7 ft2 B. 131.3 ft2 C. Not enough data D. 196.3 ft2
Mathematics
Use reference angles to find the exact value of the expression. Do not use a calculator.cot 570°
A. 
B. - 
C. - 
D. 
Mathematics