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beks73 [17]
3 years ago
12

Determine whether the subset of Mn,n is a subspace of Mn,n with the standard operations of matrix addition and scalar multiplica

tion. The set of all n x n invertible matrices a. subspace b. not a subspace

Mathematics
1 answer:
sveta [45]3 years ago
8 0

Answer:

solution is attached in the picture below

Step-by-step explanation:

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The sixth grade art students are making a mosaic using tiles in shapes of right triangles. Each tiles has the leg measures of 5.
Drupady [299]

Given:

Each right triangular tiles has the leg measures of 5.2 cm and 6 cm.

There are 150 tiles in the mosaic.

To find:

The area of the mosaic.

Solution:

We know that, the area of a triangle is:

A=\dfrac{1}{2}\times Base\times height

So, the area of Each right triangular tile is:

A=\dfrac{1}{2}\times 5.2\times 6

A=\dfrac{1}{2}\times 31.2

A=15.6

There are 150 tiles in the mosaic. So, the area of the mosaic is:

Area=15.6\times 150

Area=2340

Therefore, the total area of the mosaic is 2340 cm ².

5 0
3 years ago
I NEED AN ANSWER ASAP! Write the equation of the line passing through (7, 1), (7, -4), and (7, 4).
nekit [7.7K]

y = 0x +0

this line is straight up and down so it has a slope of 0 and it never crosses the y axis so it has a y intercept of 0.

4 0
3 years ago
How much sevens does it take to make 32?
Ksju [112]
Divide 7 by 32 and go from there
3 0
2 years ago
-3(1+6r)+12=14. solve for r
emmasim [6.3K]

Answer: r = -5/18


Step-by-step explanation: You solve -3(1+6r)+12=14

-3-18r+12=14 (When distributed)

-18r+9=14

-18r=5

r=-5/18


6 0
3 years ago
Read 2 more answers
Find the value of x. Then find the measure of each labeled angle
34kurt

Answer:

x = 109

Top Right Angle = 109

Bottom Right Angle = 71

Step-by-step explanation:

Notice the two right angles on the left and recognize that the figure is a a quadrilateral (4 sides). That means it adds up to a total of 360 degrees.

(x-38) + x + 90 + 90 = 360

2x + 142 = 360

2x = 218

x = 109

(x - 38) = (109 - 38)

71 degrees for bottom right angle

109 for top right angle

8 0
2 years ago
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