Find the equation of the parabola described.Directrix the line y = 3; vertex at (0, 0)
A. y2 = -12x
B. x = 3y2
C. x2 = -12y
D. y = -12x2
Answer: C
Mathematics
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t2 - 3)i + ( 2t - 9)j + 8k
A. a = 
T + 
N
B. a = 
T + 
N
C. a = 
T + 
N
D. a = 
T + 
N
Mathematics
Find the volume of the indicated region.the solid cut from the first octant by the surface 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.On a map of the Thunderbird Country Club golf course, 1.5 inches equals 45 yards. How long is the 6th hole if the map shows 6 inches?
A. 11.3 yd B. 180 yd C. 270 yd D. 405 yd
Mathematics
Provide an appropriate response.A company produces 444,000 small appliances in one year. Write444,000 in scientific notation.
A. 44.4 × 104 B. 4.44 × 105 C. 4.44 × 106 D. 4.44 × 10-5
Mathematics