Find a polar equation of the conic with a focus at the pole and the given eccentricity and directrix.e = 4, r = 4 sec ?
A. r = 
B. r = 
C. r = 
D. r = 
Answer: C
Mathematics
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Find parametric equations for the line through (-4,1,1) and (4,5,6).
What will be an ideal response?
Mathematics
Solve for the unknown in the equation.3(A + 1) = 9
A. A = 2 B. A = -2 C. A = -4 D. A = 4
Mathematics
Match the given equation with one of the graphs.x2 - y2 = 81
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.A shipment of 20 digital cameras contains two that are defective. A random sample of three is selected and tested. Let X be the random variable associated with the number of defective cameras in a sample. Find the probability distribution of X and the expected number of defective cameras in a sample.
What will be an ideal response?
Mathematics