Multiply.(2x + 7)(x + 8)
A. x2 + 23x + 22
B. 2x2 + 23x + 56
C. 2x2 + 22x + 56
D. x2 + 56x + 23
Answer: B
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Solve the variation problem.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. 32 volts
B. 16 volts
C. 18 volts
D. 8 volts
Solve the problem.Suppose that the data set {x1, x2, x3, ..., xN} has median M and interquartile range IQR. If M' and IQR' are the median and interquartile range of the data set 
respectively, then
A. M' = M + c, and IQR' = IQR + c. B. M' = M, and IQR' = IQR. C. M' = M, and IQR' = IQR + c. D. M' = M + c, and IQR' = IQR. E. none of these
Provide an appropriate response.Write an expression that represents the area of the figure and simplify.
What will be an ideal response?
Find an equation of the line.Parallel to x = 8, through (-12, 11)
A. y = 11
B. x = 11
C. y = - 
x + 
D. x = -12