Add or subtract. Express the answer as a mixed number.
A. 8
B. 16
C. 14
D. 15
Answer: D
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Determine whether the relation is a function.
A. A function B. Not a function
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 103 cable B 20 cable C B. 10 cable A 30 cable B 20 cable C C. 10 cable A 30 cable B 93 cable C D. 20 cable A 30 cable B 10 cable C
Evaluate the algebraic expression for the given value or values of the variable(s).9x + 8;
x = 7
A. 126 B. 71 C. 17 D. 55
Graph the given function. Identify the vertex and the intercepts.y = - 2x + x2 + 6
A. Vertex: (1, -1)
x-intercepts: 0 and 2
y-intercept: 0
B. Vertex: 
x-intercepts: 1 and 6
y-intercept: 6
C. Vertex: (1, 5)
x-intercepts: none
y-intercept: 6
D. Vertex: (1, -5)
x-intercepts: none
y-intercept: -6