Solve for the requested variable.y varies jointly as a and b and inversely as the square root of c, and y = 120 when a = 8, b = 5, and 
. Find y when a = 2, b = 10, and c = 25.
A. y =900
B. y =36
C. y =7.2
D. y =4
Answer: B
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Solve the problem.Find a unit vector perpendicular to both 7i + 5k and 3k.
A. k B. 21j C. j D. i
Find the term indicated in the expansion.(2x + 5)5; 5th term
A. 6250x B. 15,625 C. 2500x2 D. 1250x
The side of a right triangle that is opposite the right angle is called the___________ .
Fill in the blank(s) with the appropriate word(s).
Find the center, transverse axis, vertices, foci, and asymptotes of the hyperbola.64y2 - 36x2 = 2304
A. center at (0, 0)
transverse axis is x-axis
vertices: (-6, 0), (6, 0)
foci: (-8, 0), (8, 0)
asymptotes of y = - 
and y = 
B. center at (0, 0)
transverse axis is y-axis
vertices at (0, -6) and (0, 6)
foci at (0, - 10) and (0, 10)
asymptotes of y = - 
and y = 
C. center at (0, 0)
transverse axis is x-axis
vertices: (-8, 0), (8, 0)
foci: (- 10, 0) , (10, 0)
asymptotes of y = - 
and y = 
D. center at (0, 0)
transverse axis is y-axis
vertices: (0, -6), (0, 6)
foci: (- 10, 0) , (10, 0)
asymptotes of y = - 
and y = 