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MATH HELP 1

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asked Aug 3 in ALGEBRA 1 by anonymous

6 Answers

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1.1

Step 1:

The system of equations are

image

Rewrite the equations are

image

Convert the equations into matrices form image,

where image is coefficient matrix, image is variable matrix and image is constant matrix.

image

Solve the equations by using Cramers Rule.

image

Since image Cramers Rule is applicable.

Step 2:

image

image

image

Solution:

image

answered Aug 3 by Anney Mentor
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1.3

The equation is image

Solve for x value.

Apply ln on each side.

image

image

The value of image

answered Aug 3 by Anney Mentor
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1.4

The equation is image

Apply ln on each side.

image

answered Aug 3 by Anney Mentor
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1.5

The rectangle length is three times equal to the breadth.

Then The equation is image

The area of the rectangle is image

Area of the rectangle is image

Find the length and breadth of the rectangle.

image

The rectangle length and breadth are image

answered Aug 3 by Anney Mentor
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2.1.1

The function is image

Graph:

image

2.1.2

Observe the graph;

The graph is shown continuous.

2.1.3

The range of the function is image

answered Aug 3 by Anney Mentor
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1.2

The matrix is

Find the coefficient matrix.

 

image

1.2.1

Find determinant of co efficient.

image

Determinant of co efficient is image

1.2.2

Cofactor of image

1.2.3

The minor of image

answered Aug 3 by Anney Mentor

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