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Hitman42 [59]
3 years ago
6

Solve the problem below and enter your answer in the space below 7x (3-2) = ?

Mathematics
1 answer:
postnew [5]3 years ago
5 0

Answer:

7

Step-by-step explanation:

PEMDAS

3-2=1

x

7

=

7

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What is the slope of a line perpendicular to 3x- 2y= 6
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Answer:

y = (-2/3)x + 5

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Step-by-Step:

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6. Let A and B be nxn matrices . Compute (A + B) (A + B). Explain all steps.
Pie

Answer:

(A+B)(A+B)=A.A+B.A+A.B+B.B

Step-by-step explanation:

Given that matrices A and B are nxn matrices

We need to find (A+B)(A+B)

For understanding the multiplication of matrices let'take A is mxn and B is pxq matrices,we can multiple only when n=p,so our Ab matrices will be mxq.

We know that that in matrices AB is not equal to BA.

Now find  

(A+B)(A+B)=A.A+B.A+A.B+B.B

So from we can say that (A+B)(A+B) is not equal to A.A+2B.A+B.B because AB is not equal to BA in matrices.

So (A+B)(A+B)=A.A+B.A+A.B+B.B

4 0
3 years ago
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