Use the quotient rule to simplify the expression. Use positive exponents to write the answer.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use unit ratios to convert the units.7 feet to inches
A. 21 in. B. 84 in. C. 252 in. D. 28 in.
Mathematics
Solve the variation problem.According to Ohm's law, the electric current I, in amperes, in a circuit varies directly as the voltage V. When 17 volts are applied, the current is 4 amperes. What is the current when 30 volts are applied?
A. 4.25 amperes B. 7.06 amperes C. 51 amperes D. 127.5 amperes
Mathematics
Evaluate without using a calculator by using ratios in a reference triangle.csc 330°
A. -2
B. 
C. 2
D. - 
Mathematics
Solve the equation.
(r + 6) = 
(r + 8)
A. -1 B. 1 C. 2 D. -2
Mathematics