Negative Exponents Answers

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Which could be the resulting equation when elimination is used to solve the given system of equations?

Question illustration
A
10a = 60
B
10b = 60
C
–10a = 60
D
–10b = 60
22
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The vertices of a feasible region are (14, 2), (0, 9), (6, 8), and (10, 3). What is the maximum value of the objective function P if P = 180x + 250y?

A
2,940
B
3,020
C
3,080
D
3,250
23

Which statement correctly explains how Kasi could find a solution to the following system of linear equations using elimination?

Question illustration
A
She can multiply the bottom equation by –4 and then add the equations to solve for h.
B
She can multiply the bottom equation by 4 and then add the equations to solve for h.
C
She can add 17 to both sides of both equations to set –4g – 15h equal to zero.
D
She can subtract 13 from both sides of both equations to set –g + 5h equal to zero.
24

Which ordered pair (a, b) is the solution to the given system?

Question illustration
A
(1, 3)
B
(3, 1)
C
mc004-2.jpg
Option C
D
mc004-3.jpg
Option D
25

Zina solves a system of linear equations by elimination and finds that the solution to a system is (2, 2). One of the equations is a + b = 4. Which answer could be the other equation?

A
a + 3b = 4
B
2a + 2b = 2
C
4a + 4b = 8
D
a + 3b = 8

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