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swat32
3 years ago
8

Please help Multiply

Mathematics
1 answer:
Natalija [7]3 years ago
5 0
Remember multiplication of matrix is row times columns:

=>

|   4    0 |   |    0    1 |          
| - 1    2 |   | - 3     1 |     =
| - 3  - 1 |

Term (1,1): 4 *0 + 0 * (-3) = 0

Term (1,2): 4*1 + 0*1 = 4

Term (2,1): -1*0 + 2*(-3) = -6

Term (2,2): -1*1 + 2*1 = 1

Term (3,1): -3*0 -1*(-3) = 3

Term (3,2): -3*1 + -1*1 = -4

Answer:

|  0     4 |
|- 6     1 |
|  3   - 4 |



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3 0
2 years ago
X and Y are independent random variables. X is normally distributed with mean 1 and variance 1. Y is normally distributed with m
g100num [7]

Answer:

1

Step-by-step explanation:

Equation of variance:

Total Variance = sum (i=1, N) {c^2,variance^2}

= c1^2*variance1^2 + c2^2*variance2^2 + .....

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8 0
3 years ago
Evaluate the following expression if a=-9, b=-7,c=9 and d=3<br> 2cd + 3ab =
stepladder [879]

Answer:

<h3>The answer is 243.</h3>

Step-by-step explanation:

To evaluate the expression substitute the values of a , b , c and d into the above expression

a = - 9

b = - 7

c = 9

d = 3

So we have

2cd + 3ab = 2(9)(3) + 3(-9)(-7)

= 2(27) + 3( 63)

= 54 + 189

We have the final answer as

<h3>243</h3>

Hope this helps you

7 0
3 years ago
What is the simplified form of the expressions?<br> a. −6a2b−1 <br> b. 5/y−3
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Answer:

a.

-6a²/ b

b.

5y³

Step-by-step explanation:

a

-6a²b⁻¹

-6a²/ b

b.

5/ y⁻³

5 / 1/ y³

5 * y³/1

5y³

8 0
3 years ago
Plz help geometry will mark brainliest
stellarik [79]
15+16+10 =41
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3 0
2 years ago
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