Solve the problem.Two forces F1 and F2 of 28.5 and 31.6 pounds, forming an angle of 86.0°, act at a point. Find the magnitude of the resultant force. Round the answer to one decimal place, if necessary.
A. 60.1 lb
B. 41.1 lb
C. 44.0 lb
D. 900 lb
Answer: C
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Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.
A. 54xy10 B. 6xy4 C. 6xy10 D. 6x19y10
Solve the problem.In designing a type of tubing, the expression (D + 0.1)4 is used. Expand this expression.
A. D4 + 0.004D3 + 0.06D2 + 0.004D + 0.0001 B. D4 + 0.4D3 + 0.06D2 + 0.004D + 0.0001 C. D4 + 0.4D3 + 0.06D2 + 0.4D + 0.0001 D. D4 + 0.4D3 + 0.6D2 + 0.4D + 0.1
Solve the equation using a graphing calculator. Round the answer to two decimal places.-4x2 + 4x + 5 = 0
A. {-0.72, 1.72} B. {-11.5, 12.5} C. {-1.45, 3.45} D. {-1.72, 0.72}
Solve the formula for the indicated variable.F = 
C + 32
for C
A. C = 
B. C = 
(F - 32)
C. C = 
(F - 32)
D. C = 