Solve the problem.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. B requires 1 black, 2 white, and 1 red. C requires 2 black, 1 white, and 2 red. They used 100 black, 110 white and 90 red wires. How many of each cable were made?
A. 10 cable A
30 cable B
93 cable C
B. 10 cable A
30 cable B
20 cable C
C. 10 cable A
103 cable B
20 cable C
D. 20 cable A
30 cable B
10 cable C
Answer: B
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Find the derivative.r = 20 - ?7 cos ?
A. 
= 7?6 sin ?
B. 
= - 7?6 cos ? + ?7 sin ?
C. 
= 7?6 cos ? - ?7 sin ?
D. 
= 7?6 sin ? - ?7 cos ?
Find the vertices and the foci of the given ellipse.16x2 + 4y2 = 64
A. V: (-4, 0), (4, 0);
F: (- 2
, 0), (2
, 0)
B. V: (0, -4), (0, 4);
F: (0, - 2
), (0, 2
)
C. V: (0, -16), (0, 16);
F: (0, -4), (0, 4)
D. V: (0, 16), (4, 0)
F: (0, 4), (2, 0)
Write the equation for the shape described.The circle with center at (-6, -2), passing through (-3, 2)
A. (x + 6)2 + (y + 2)2 = 25 B. (x - 2)2 + (y - 6)2 = 9 C. (x - 6)2 + (y - 2)2 = 25 D. (x + 2)2 + (y + 6)2 = 9
Assume that two marbles are drawn without replacement from a box with 1 blue, 3 white, 2 green, and 2 red marbles. Find the probability of the indicated result.One marble is white, and one marble is blue.
A. 
B. 
C. 
D. 