Find the domain of the rational function.R(x) = 
A. {x|x ? 12, 4}
B. {x|x ? 12, -4}
C. {x|x ? -12, 4}
D. {x|x ? - 48, 1}
Answer: C
Mathematics
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Simplify.3 ? [32 + 3 ? (8 + 7)]
A. 120 B. 54 C. 540 D. 162
Mathematics
Write the equation of the line that has the given slope and passes through the given point. Write the equation in slope-intercept form.m = -4; (-4, 8)
A. y - 8 = x + 4 B. y - 8 = -4x + 4 C. y = -4x + 8 D. y = -4x - 8
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 140xy
Mathematics
Solve the problem.If an object is thrown upward with an initial velocity of 112 ft/sec, its height after t sec is given by 
Find the number of seconds before the object hits the ground.
A. 96 sec B. 56 sec C. 7 sec D. 3.5 sec
Mathematics