Evaluate the expression.12961/4
A. 24
B. 144
C. 6
D. 7776
Answer: C
Mathematics
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Solve.The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 7 amperes when the resistance is 510 ohms. What is the current when the resistance is 748 ohms?
A. 4.8 amperes B. 0.1 amperes C. 0.21 amperes D. 10.3 amperes
Mathematics
Solve the equation after making an appropriate substitution.x1/2 - 6x1/4 + 8 = 0
A. {4, 16} B. {16, 256} C. {2, 4} D. {-2, -4}
Mathematics
Use a calculator to find the function value. Give your answer rounded to seven decimal places, if necessary.cos 39° 5' cos 50° 55' - sin 39° 5' sin 50° 55'
A. 1 B. -1 C. 2 D. 0
Mathematics
Divide. Simplify, if necessary.
÷ 
A. 
B. 
C. 
D. 
Mathematics