Solve the problem by using three variables.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; 103 cable B; 20 cable C
B. 20 cable A; 30 cable B; 10 cable C
C. 10 cable A; 30 cable B; 93 cable C
D. 10 cable A; 30 cable B; 20 cable C
Answer: D
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Find an approximate value for the integral, using the trapezoidal rule with n intervals. Round the answer to the nearest tenth if necessary.
, n = 3
A. 4.7 B. 9.4 C. 6.8 D. 0.6
If 
find 
and 
a. 
(x) = –6 cos(2x)+ 2cos(x)
b. 
(x) = –6sin(x) + sin(2x)
c. (x) = –6sin(2x) + sin(x)
d. (x) = –6 cos(x)+ 2cos(2x)
e. (x) = –2 cos(2x)+ 6cos(x)
Find the surface area of the figure. Use 3.14 as an approximation for ?. Round your result to the nearest tenth.A sphere with d = 4.0 yd
A. 12.6 yd2 B. 33.5 yd2 C. 4.0 yd2 D. 50.4 yd2
Determine whether the graph is the graph of a function.
A. Function B. Not a function