Add or subtract.-50 - 50
A. 0
B. -150
C. -100
D. 100
Answer: C
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Write the number in scientific notation.50,030,000
A. 5.003 × 107 B. 5.03 × 108 C. 5.03 × 107 D. 5.003 × 108
Find the domain and range of the inverse of the given function.f(x) = 3.9 - 2.25x
A. Domain: all real numbers; range: [3.9, ?) B. Domain and range: all real numbers C. Domain: all real numbers; range: (?, 3.9] D. Domain: [3.9, ?); range: all real numbers
Solve.The voltage across a resistor is jointly proportional to the resistance of the resistor and the current flowing through the resistor. If the voltage across a resistor is 
for a resistor whose resistance is 
and when the current flowing through the resistor is 
find the voltage across a resistor whose resistance is 
when the current
flowing through the resistor is 
A. 35 volts
B. 40 volts
C. 63 volts
D. 45 volts
Approximate the circumference of the circle, using 3.14 as an approximation for ?.Round to the nearest thousandth.
A. 10.362 mi B. 5.181 mi C. 8.549 mi D. 20.724 mi