Solve the system by the substitution method.
A. {(4, -11)}
B. {(x, y) 
C. {(4, 11)}
D. ?
Answer: A
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 9x, y = - 
, x = 1
A. 
?
B. 
?
C. 
?
D. 82?
Mathematics
Round the decimal to the given place value.7.924 to the nearest tenth
A. 7.92 B. 8.0 C. 7.9 D. 7.8
Mathematics
Determine the equation of the line described. Put the answer in the slope-intercept form, if possible.Through (-8, 1), perpendicular to 6x + 5y = -53
A. y = - 
x + 
B. y = - 
x + 
C. y = 
x + 
D. y = 
x + 
Mathematics
Solve.The function 
represents the yearly income (or loss) from a real estate investment, where t is time in years. After what year does income begin to decline?
A. 8.5 B. 7.5 C. 11.33 D. 17
Mathematics