Write a system of equations and use the inverse of the coefficient matrix to solve the system.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. Cable B requires 1 black, 2 white, and 1 red wires. Cable C requires 2 black, 1 white, and 2 red wires. 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. 10 cable A
30 cable B
93 cable C
C. 10 cable A
30 cable B
20 cable C
D. 20 cable A
93 cable B
10 cable C
Answer: C
Mathematics
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The table below shows the scores of a group of students on a 10 point multiple choice exam.
What is the median score on the exam?
A. 5 B. 5.5 C. 6 D. 6.5
Mathematics
Find the intervals on which the function is continuous.y = 
- 
A. discontinuous only when x = -8 or x = -4 B. discontinuous only when x = -12 C. discontinuous only when x = -4 D. continuous everywhere
Mathematics
State whether the function is linear or quadratic.f(x) = 4x
A. Linear B. Quadratic
Mathematics
Solve using the principle of zero products.(x - 0.5)(x + 0.2) = 0
A. -0.5, 0.2 B. 0.5, -0.2 C. 0.5, 0.2 D. 0.5, -0.5, 0.2, -0.2
Mathematics