Solve the problem.The equation P = IV cos ? gives the power (in watts) absorbed in an ac circuit. Find ? when P = 110 W, V = 120 V, and I = 1.6 A. Round results to an appropriate number of significant digits.
A. 35°
B. 61°
C. 55°
D. 50°
Answer: C
Mathematics
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Find the prime factorization of the number.95
A. 5 ? 5 ? 5 B. 5 ? 19 C. 5 ? 20 D. 2 ? 5 ? 5
Mathematics
Add the given vectors.
A. R = 4600, ? = 35° B. R = 2800, ? = 113° C. R = 4600, ? = 215° D. R = 2800, ? = -67°
Mathematics
Simplify the expression.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Solve the equation by completing the square.x2 + 12x + 61 = 0
A. {-6 - 25i, -6 + 25i} B. {-11, -1} C. {-6 - 5i, -6 + 5i} D. {-6 + 5i}
Mathematics