Solve the system of equations by elimination.
A. (-3, 1)
B. (1, -3)
C. infinitely many solutions
D. no solution
Answer: B
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Write the augmented matrix for the system.7x - 2y = 299x + 4y = 57
A. 
B. 
C. 
D. 
Refer to the weighted voting system 
and the Shapley-Shubik definition of power. (The four players will be called P1, P2, P3, and P4.)The Shapley-Shubik power distribution of the weighted voting system is
A. P1: 
; P2: 
; P3: 
; P4: 
.
B. P1: 
; P2: 
; P3: 
: P4: 
.
C. P1: 
; P2: 
; P3: 
; P4: 0.
D. P1: 
; P2: 
; P3: 
; P4: 0.
E. none of these
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
Determine whether the graph of the polynomial has y-axis symmetry, origin symmetry, or neither.f(x) = x4 - 9x2
A. y-axis symmetry B. origin symmetry C. neither