Perform the indicated conversion within American units of length.3 feet to inches
A. 9 in.
B. 108 in.
C. 12 in.
D. 36 in.
Answer: D
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Find the domain of the composite function (f ? g)(x). Write the domain in interval notation.f(x) = 6x + 48, g(x) = x + 2
A. (-?, 10) ? (10, ?) B. (-?, ?) C. (-?, -10) ? (-10, ?) D. (-?, -8) ? (-8, -2) (-2, ?)
Solve.The number of miles per gallon of gasoline that a car averages varies inversely as the average speed the car travels. A car gets 17 miles per gallon at 67 mph. How many miles per gallon will it get at 42 mph? Round to the nearest tenth if necessary.
A. 0.09 miles per gallon B. 10.7 miles per gallon C. 0.04 miles per gallon D. 27.1 miles per gallon
Solve the quadratic equation by completing the square.x2 + 12x + 22 = 0
A. {-12 + 
}
B. {6 + 
}
C. {-6 - 
, -6 + 
}
D. {6 - 
, 6 + 
}
For the given pair of points, find the equation of the line 
that goes through the points by solving a system of equations.(-9, -8) and (-7, -6)
A. y = x - 17 B. y = x + 1 C. y = -x - 8 D. y = -x + 1