Find the focus and the directrix of the parabola.x2 + 8x - 4y + 36 = 0
A. Focus: (-4, 6), directrix: y = 
B. Focus: (-4, 9); directrix: y = -1
C. Focus: (-4, 4); directrix: y = 6
D. Focus: (-4, 6); directrix: y = 4
Answer: D
You might also like to view...
Jim has a 5-year-old car in reasonably good condition. He wants to take out a $60,000 term (that is, accident benefit) car insurance policy until the car is 10 years old. Assume that the probability of a car having an accident in the year in which it is x years old is as follows: x = age5 6 7 8 9 P(accident)0.01191 0.01292 0.01396 0.01503 0.01613 Jim is applying to a car insurance company for his car insurance policy. If the car insurance company wants to make a profit of $900 above the expected total losses of $4197, how much should it charge for the policy?
A. $901 B. $893 C. $913 D. $903 E. $905
Express in terms of a base raised to a positive exponent. Then simplify, if possible.-x-8
A. -x8
B. - 
C. 
D. - 
Factor completely. If the polynomial cannot be factored, write prime.x2 + 3x - 108
A. (x - 12)(x + 9) B. (x - 12)(x + 1) C. (x + 12)(x - 9) D. Prime
For the given statement Sn, write the statements S1, Sk, and Sk+1.12 + 22 + 32 + . . . + n2 = 
What will be an ideal response?