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Svet_ta [14]
3 years ago
6

Please help! Correct answer only, please! I need to finish this assignment this week. Given matrix A and B both have dimensions

2 x 2 and are the inverse of one another what should be the following product? A · B A. B. C. D.

Mathematics
1 answer:
Delicious77 [7]3 years ago
8 0

Answer:

Option B is correct

Step-by-step explanation:

The multiply of matrix A by matrix B that is inverse of A, must result in an identity matrix that has form shown in option B

Hope this helps!

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Plz help me out with this and do show work I will be waiting.... btw u will be marked brainliest!!!!!! Fast plz
pychu [463]

Answer:

x=16°

Step-by-step explanation:

5*x-30=2*(x+18)

For the second, I'd say it is:

5*x-30=2*x+18  

Let's solve both.  

5*x-30=2*(x+18)

5x-30=2x+36

3x=66

x=22  

5*x-30=2*x+18

3x+48

x=16°

8 0
3 years ago
The english alphabet contains 21 consonants and five vowels. how many strings of six letters, each of which is drawn from the en
Mamont248 [21]
Number of strings = 21^5(5) = 21 x 21 x 21 x 21 x 21 x 5 = 20 420 505

Answer:  20 420 505
6 0
3 years ago
If |AB| / |DE|=7/5 then what is |AD| / |CD|?DE is parallel to AB
Dmitriy789 [7]

Answer: AD/CD = 2/5

Explanation:

Triangle ABC is similar to triangle DEC on the basis of AA(Angle angle)

Recall, if 2 triangles are similar, it means that the ratio of their corresponding sides are equal. Thus,

AB/DE = BC/EC = AC/DC

From the information given,

AB/DE = 7/5

Thus,

AC/DC = 7/5

AD + CD = AC

(AD + CD)/DC = 7/5

AD/DC + CD/DC = 7/5

AD/DC + 1 = 7/5

AD/DC = 7/5 - 1

AD/DC = 2/5

AD/CD = 2/5

4 0
1 year ago
Chin Woo bought a home for $160,000. He put down 20 percent. The mortgage is at 8 1/2 % for 25 years. By using the table in the
blagie [28]
Down payment
160,000×0.20=32,000

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6 0
3 years ago
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miskamm [114]

Remove the radical by raising each side to the index of the radical.

x=-1

7 0
3 years ago
Read 2 more answers
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