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natulia [17]
3 years ago
8

Does the given matrix, A, have an inverse? If it does, what is A-1?

Mathematics
1 answer:
ololo11 [35]3 years ago
6 0

Answer:

yes he does

Step-by-step explanation:

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Please help me!<br> I will give brainly
Natali [406]
1. 80
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3 0
2 years ago
Solve each equation. Record your work and check your solution. <br> a. 5(x-2)+(-9)= -7(1-x)
Daniel [21]

The solution for equation is x = -6

<em><u>Solution:</u></em>

<em><u>Given equation is:</u></em>

5(x-2) + (-9) = -7(1-x)

We have to solve the equation

According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right

Therefore, solve for brackets in given equation

5(x-2) + (-9) = -7(1-x)\\\\5x - 10 -9 = -7 + 7x

Solve for terms in left hand side of equation

5x - 19 = -7+7x

Move the variables to one side and constants to other side

7x -5x = -19+7\\\\2x = -12\\\\Divide\ both\ sides\ by\ 2\\\\x = -6

Thus the solution for equation is x = -6

8 0
3 years ago
Anyone know the answer?
jonny [76]
Answer is 4 so C for you. I just did this with my brother! Hope this helped.
8 0
3 years ago
Read 2 more answers
I need help on this please!!
marin [14]

Answer:

In fifteen years, Alexis would have 9200. In twenty years she would have 9600

Step-by-step explanation:

10% for interest of 8000= 80.

80 (interest for one year) * 15 (fifteen years)= 1200

1200 plus the original amount is 9200.

80 (interest for one year) * 20 ( twenty years)= 1600

1600 plus the original amount is 9600

6 0
3 years ago
in a toy store the ratio of the number of dolls to the number of teddy bears 6:5if the number of dolls are 24 what is the number
ELEN [110]
6:5 to 24:20 
thats because 6 to 24 is 4 times so you do 5 times 4 and get 20.
4 0
3 years ago
Read 2 more answers
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