Find the exact value of the expression.cos 
A. - 
B. 
C. 
D. 
Answer: B
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Find a parametrization for the curve.The upper half of the parabola x + 6 = y2
What will be an ideal response?
Solve the problem.Find the foci and asymptotes of the following hyperbola:9y2 - x2 = 9
A. Foci: (0, 
), (0, -
); Asymptotes: y = 
x, y = - 
x
B. Foci: (0, 10), (0, -10); Asymptotes: y = 3x, y = -3x
C. Foci: (0, 
), (0, -
); Asymptotes: y = 3x, y = -3x
D. Foci: (
, 0), (-
, 0); Asymptotes: y = 
x, y = - 
x
Find the probability.The table lists the eight possible blood types. Also given is the percent of the U.S. population having that type.
Let E be the event that a randomly selected person in the U. S. has type B blood. Let F be the event that a randomly selected person in the U. S. has RH-positive blood.Find P(F|E).
A. 0.818 B. 0.340 C. 0.720 D. 0.107
Factor the polynomial completely using grouping.15y2 + 26y + 8
A. (3y - 4)(5y - 2) B. (3y + 4)(5y + 2) C. (15y + 4)(y + 2) D. prime