Solve for the variable.2(x + 1) = -3(x + 6) + 21
A. x = 
B. x = 
C. x = - 28
D. x = - 5
Answer: B
Mathematics
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Multiply.3(5)(6 ? z)
A. 80z B. 90z C. 90 D. 190z
Mathematics
Rewrite with rational exponents.
A. -171/7
B. 71/17
C. 
D. 171/7
Mathematics
Solve.For a resistor in a direct current circuit that does not vary its resistance, the power that a resistor must dissipate is directly proportional to the square of the voltage across the resistor. The resistor must dissipate 
watt of power when the voltage across the resistor is 10 volts. Find the power that the resistor must dissipate when the voltage across it is 20 volts.
A. 
watt
B. 
watt
C. 
watts
D. 
watt
Mathematics
Tell whether the given rational expression is proper or improper.
A. proper B. improper
Mathematics