Solve the system. $\begin{array} { l } \frac { 1 } { x } + \frac { 1 } { y } - \frac { 1 } { z } = \frac { 9 } { 14 } \\ \frac { 4 } { x } - \frac { 1 } { y } + \frac { 9 } { z } = - \frac { 30 } { 7 } \\ - \frac { 1 } { x } + \frac { 8 } { y } - \frac { 6 } { z } = \frac { 131 } { 14 } \end{array}$

A) $\left\{ \left\{ - \frac { 1 } { 2 } , 1 , - \frac { 1 } { 7 } \right) \right\}$ B) $\{ ( - 2,1,7 ) \}$ C) $\left\{ \left( - \frac { 1 } { 2 } , 1 , \frac { 1 } { 7 } \right\} \right\}$ D) $\{ ( - 2,1 , - 7 ) \}$ A) $\left\{ \left\{ - \frac { 1 } { 2 } , 1 , - \frac { 1 } { 7 } \right) \right\}$ B) $\{ ( - 2,1,7 ) \}$ C) $\left\{ \left( - \frac { 1 } { 2 } , 1 , \frac { 1 } { 7 } \right\} \right\}$ D) $\{ ( - 2,1 , - 7 ) \}$

Write the augmented matrix for the system. Do not -\[\begin{array} { l } 7 x + 4 y = 39 \\ 5 x + 3 y = 29 \end{array}\]

A) \[\left[ \begin{array} { l l | l } 7 & 5 & 39 \\ 4 & 3 & 29 \end{array} \right]\] B) $\left[\begin{array}{ll|l} 7 & 4 & 39 \\ 5 & 3 & 29 \end{array}\right]$ C) \[\left[ \begin{array} { l l | l } 39 & 4 & 7 \\ 29 & 5 & 3 \end{array} \right]\] D) \[\left[ \begin{array} { l l | l } 7 & 4 & 29 \\ 3 & 5 & 39 \end{array} \right]\] A) \[\left[ \begin{array} { l l | l } 7 & 5 & 39 \\ 4 & 3 & 29 \end{array} \right]\] B) $\left[\begin{array}{ll|l} 7 & 4 & 39 \\ 5 & 3 & 29 \end{array}\right]$ C) \[\left[ \begin{array} { l l | l } 39 & 4 & 7 \\ 29 & 5 & 3 \end{array} \right]\] D) \[\left[ \begin{array} { l l | l } 7 & 4 & 29 \\ 3 & 5 & 39 \end{array} \right]\]

Exam 6: Systems and Matrices

A nonlinear system is given, along with the graphs of both equations in the system. Determine if the points of intersection specified on the graph are solutions of the system by substituting directly into both equations. - y=(4x+2) y= $A nonlinear system is given, along with the graphs of both equations in the system. Determine if the points of intersection specified on the graph are solutions of the system by substituting directly into both equations. - \begin{array} { l } y = \ln ( 4 x + 2 ) \\ y = \sqrt { ( x - 3 ) ^ { 3 } + 0.5 ( x - 7 ) } \end{array}$

(Multiple Choice)

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Question 501

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. The company used 100 black, 110 white and 85 red Wires. How many of each type of cable were made?

(Multiple Choice)

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Question 502

Solve the system. +-= -+=- -+-=

(Multiple Choice)

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Question 503

Write the augmented matrix for the system. Do not - 7x+4y=39 5x+3y=29

(Multiple Choice)

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Question 504

Determine the inequality which matches the calculator graph. Do not use your calculator. Instead, use your knowledge of the concepts involved in graphing inequalities. -

(Multiple Choice)

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Question 505

Showing 501 - 505 of 505

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. The company used 100 black, 110 white and 85 red Wires. How many of each type of cable were made?

Solve the system. +-= -+=- -+-=

Write the augmented matrix for the system. Do not - 7x+4y=39 5x+3y=29

Determine the inequality which matches the calculator graph. Do not use your calculator. Instead, use your knowledge of the concepts involved in graphing inequalities. -

Review of Basic Concepts

Equations and Inequalities

Graphs and Functions

Polynomials and Rational Functions

Inverse, Exponential, and Logarithmic Functions

Arithmetic Sequence: Common Difference and First n Terms

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