Solve the problem.Find the equation of the line which contains P(-7, 1) and which is parallel to the y-axis.
A. y = 1
B. y = -7
C. x = 1
D. x = -7
Answer: D
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The number of homes with digital TVs is expected to grow according to the function
?
?
where t is measured in years, with t = 0 corresponding to the beginning of 2000, and f(t) is measured in millions of homes. How many homes had digital TVs at the beginning of 2000?
?
A. 714,800.00 B. 1.55 C. 0.71 D. 714.80 E. 1,551,800.00
Multiply.(4x - 7)(x + 12)
A. 4x2 + 39x - 84 B. 4x2 + 41x - 84 C. 4x2 + 41x + 41 D. 4x2 - 84x + 41
Determine the equation of the horizontal asymptote for the graph of this function, and state the domain and range of this function.f(x) = 3x + 2
A. Horizontal asymptote: y = 2; Domain: (-?, ?), Range: (2, ?) B. Horizontal asymptote: y = 0; Domain: (-?, ?), Range: (0, ?) C. Horizontal asymptote: y = 2; Domain: (-?, ?), Range: (- 2, ?) D. Horizontal asymptote: y = - 2; Domain: (-?, ?), Range: (- 2, ?)
Solve the problem.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the height of the silo is 94 feet and the radius of the hemisphere is r feet, express the volume of the silo as a function of r.
A. V(r) = ?(94 - r)r3 + 
?r2
B. V(r) = ?(94 - r)r2 + 
?r3
C. V(r) = ?(94 - r) + 
?r2
D. V(r) = 94?r2 + 
?r3