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Andrews [41]
3 years ago
8

If two 2x2 matrices are inverses of each other, then multiplying them will result in what matrix below?

Mathematics
1 answer:
docker41 [41]3 years ago
3 0

inverse of a matrix A is defined as AA^{-1}=I

where I is the identity matrix of the respective order.

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The daily cost of hiring a plumber, y, to work hours on a repair project can be modeled
Alex73 [517]

Answer:

  [50, 410]

Step-by-step explanation:

If the plumber works 0 hours, he still charges $50, so that is the minimum of the range of charges.

If the plumber works 8 hours, his hourly charge of 8×$45 = $360 is added to his fixed charge of $50 for a total of $410. That is the maximum of the range of daily charges.

The range of the function is $50 to $410.

4 0
3 years ago
2(x+50)=16+4x<br> What is x?
Leona [35]
2x +100=16+4x
-2x. -2x
100=16+2x
-16. -16
84=2x
divide both sides
x=42
4 0
3 years ago
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Factor completely 7x3y +14x2y3 − 7x2y2.
netineya [11]
The answer to the question is b

8 0
3 years ago
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[100 POINTS+BRAINLIEST] Use the figure to find each missing angle measure.
devlian [24]

Answer:

Angle 1 is 112°, 2 is 68°, 3 is 90°, 4 is also 90°, 5 is 22° and angle 6 is 158°

Step-by-step explanation:

To find angles 3 &4 and 2 &1, you subtract the measurement given in each intersection from 180 (all straight lines are 180) to find the other angle measurements. To find 5 I used the 4th angle and the 2nd angle to find the missing number out of 180 since all of the angles in a triangle have a sum of 180°. The missing angle was 22. You can use the angle measurement of #5 to find 6 like how I mentioned before about all straight lines equaling 180°. If this all sounds like mumbo-jumbo I can elaborate a little more in the comment section!

7 0
2 years ago
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Plz help I really need it 15 points
Ivenika [448]

Answer:

I'm pretty sure its 40

hope I helped

6 0
3 years ago
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