AnswersLAUSD-Pre-Calculus B PrescriptiveUnit Test

Cramer's Rule Answers

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1
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Given and .What is X if ?

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In the matrix equation below, what are the values of x and y?

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A
x = –1, y = 2
B
x = 3, y = 8
C
x = 5, y = –4
D
x = 5, y = 2
3

If and , what is the solution to the equation AX = B?

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4

What is the value of x in the matrix equation below?

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A
-2
B
1
C
2
D
3
5

The matrix equation below can be used to solve a system of linear equations. What is the solution to the system?

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A
, y = 1
Option A
B
,
Option B
C
The system has no solution.
D
The system has infinite solutions.
6

Which system of linear equations can be solved using equation ?

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7

What is the solution to the equation ?

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8

Given and .If X - A = B, what is X?

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9

Which equation can be used to solve ?

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10

Which equation can be used to solve the matrix equation ?

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Option D

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