Question 1

A client wants 26 blocks of high-risk stock,25 blocks of moderate-risk stock,and 29 blocks of low-risk stock.Use the matrix operations on a graphing calculator to find how many of each portfolio should be suggested.

Accepted Answer

The answer of A client wants 26 blocks of high-risk...

Question 2

Solve by the method of reduction:

Accepted Answer

The answer of Solve by the method of reduction: ...

Question 3

If  ,then
A) x =  , y =  , and z = 0
B) x = 5, y = -  , and z = 
C) x = 4 -  z, y =  -  z, and z = t
D) x = 2z, y = 3 - 4z, and z = t
E) none of the above

Accepted Answer

The answer of If  ,then
A) x =  ,...

Question 4

Solve by the method of reduction:

Accepted Answer

The answer of Solve by the method of reduction: ...

Question 5

For one animal,she determines that she needs to combine these bags to get 15,000 g of  ,30,000 g of 
,and 19,000 g of 
)How many bags of each type of food should she order?

Accepted Answer

The answer of For one animal,she determines that she needs...

Question 6

A client wants 27 blocks of high-risk stock,27 blocks of moderate-risk stock,and 41 blocks of low-risk stock.Use the matrix operations on a graphing calculator to find how many of each portfolio should be suggested.

Accepted Answer

The answer of A client wants 27 blocks of high-risk...

Question 7

The spa staff determines that a client should take 190% of the RDA of vitamin A,150% of the RDA of vitamin C,and 120% of the RDA of vitamin D each day.How many tablets of each supplement should he take each day?

Accepted Answer

The answer of The spa staff determines that a client...

Question 8

For what values of a will the following system of equations have a solution?

Accepted Answer

The answer of For what values of a will the...

Question 9

Solve the following system of equations by reducing the matrix:

Accepted Answer

The answer of Solve the following system of equations by...

Question 10

On Saturdays,the company must move 23 tons of mail,16 tons of medical supplies,and 17 tons of freight.This system of equations can be represented by the matrix:  
.Reduce this matrix to calculate how many aircraft of each type should be used.

Accepted Answer

The answer of On Saturdays,the company must move 23 tons...

Question 11

The spa staff determines that a client should take 140% of the RDA of vitamin A,140% of the RDA of vitamin C,and 190% of the RDA of vitamin D each day.How many tablets of each supplement should he take each day?

Accepted Answer

The answer of The spa staff determines that a client...

Question 12

The spa staff determines that a client should take 90% of the RDA of vitamin A,190% of the RDA of vitamin C,and 130% of the RDA of vitamin D each day.Use the matrix operations on a graphing calculator to determine how many tablets of each supplement should she take each day.

Accepted Answer

The answer of The spa staff determines that a client...

Question 13

A client wants 33 blocks of high-risk stock,27 blocks of moderate-risk stock,and 30 blocks of low-risk stock.How many of each portfolio should be suggested.

Accepted Answer

The answer of A client wants 33 blocks of high-risk...

Question 14

Solve by the method of reduction:

Accepted Answer

The answer of Solve by the method of reduction: ...

Question 15

For one animal,she determines that she needs to combine these bags to get 9000 g of  ,19,000 g of 
,and 17,000 g of 
)Use the matrix operations on a graphing calculator to determine how many bags of each type of food should she order.

Accepted Answer

The answer of For one animal,she determines that she needs...

Question 16

Solve the following system of equations by reducing the matrix:

Accepted Answer

The answer of Solve the following system of equations by...

Question 17

On Sundays and holidays,the company must move 14 tons of mail,9 tons of medical supplies,and 11 tons of freight.This system of equations can be represented by the matrix:  
.Reduce this matrix to calculate how many aircraft of each type should be used.

Accepted Answer

The answer of On Sundays and holidays,the company must move...

Question 18

Each day of the holiday season,the company must move 75 tons of mail,50 tons of medical supplies,and 55 tons of freight.This system of equations can be represented by the matrix:  
.Reduce this matrix to calculate how many aircraft of each type should be used.

Accepted Answer

The answer of Each day of the holiday season,the company...

Question 19

Find all solutions by reducing the matrix:

Accepted Answer

The answer of Find all solutions by reducing the matrix:...

Question 20

For one animal,she determines that she needs to combine these bags to get 6000 g of  ,12,000 g of 
,and 11,000 g of 
)How many bags of each type of food should she order?

Accepted Answer

The answer of For one animal,she determines that she needs...

Quiz 7: Matrix Algebra

A client wants 26 blocks of high-risk stock,25 blocks of moderate-risk stock,and 29 blocks of low-risk stock.Use the matrix operations on a graphing calculator to find how many of each portfolio should be suggested.

Solve by the method of reduction:

If ,then

Solve by the method of reduction:

For one animal,she determines that she needs to combine these bags to get 15,000 g of ,30,000 g of ,and 19,000 g of )How many bags of each type of food should she order?

A client wants 27 blocks of high-risk stock,27 blocks of moderate-risk stock,and 41 blocks of low-risk stock.Use the matrix operations on a graphing calculator to find how many of each portfolio should be suggested.

The spa staff determines that a client should take 190% of the RDA of vitamin A,150% of the RDA of vitamin C,and 120% of the RDA of vitamin D each day.How many tablets of each supplement should he take each day?

For what values of a will the following system of equations have a solution?

Solve the following system of equations by reducing the matrix:

On Saturdays,the company must move 23 tons of mail,16 tons of medical supplies,and 17 tons of freight.This system of equations can be represented by the matrix: .Reduce this matrix to calculate how many aircraft of each type should be used.

The spa staff determines that a client should take 140% of the RDA of vitamin A,140% of the RDA of vitamin C,and 190% of the RDA of vitamin D each day.How many tablets of each supplement should he take each day?

The spa staff determines that a client should take 90% of the RDA of vitamin A,190% of the RDA of vitamin C,and 130% of the RDA of vitamin D each day.Use the matrix operations on a graphing calculator to determine how many tablets of each supplement should she take each day.

A client wants 33 blocks of high-risk stock,27 blocks of moderate-risk stock,and 30 blocks of low-risk stock.How many of each portfolio should be suggested.

Solve by the method of reduction:

For one animal,she determines that she needs to combine these bags to get 9000 g of ,19,000 g of ,and 17,000 g of )Use the matrix operations on a graphing calculator to determine how many bags of each type of food should she order.

Solve the following system of equations by reducing the matrix:

On Sundays and holidays,the company must move 14 tons of mail,9 tons of medical supplies,and 11 tons of freight.This system of equations can be represented by the matrix: .Reduce this matrix to calculate how many aircraft of each type should be used.

Each day of the holiday season,the company must move 75 tons of mail,50 tons of medical supplies,and 55 tons of freight.This system of equations can be represented by the matrix: .Reduce this matrix to calculate how many aircraft of each type should be used.

Find all solutions by reducing the matrix:

For one animal,she determines that she needs to combine these bags to get 6000 g of ,12,000 g of ,and 11,000 g of )How many bags of each type of food should she order?