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Maru [420]
3 years ago
8

Given matrices A and B shown below, find (−3)A+(−5)B.

Mathematics
1 answer:
Degger [83]3 years ago
3 0

Answer:

i don't understand this

Step-by-step explanation:

I don't understand this at all I have no been getting this in school

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1. Which of the following are statistical questions? Select all that apply.
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Step-by-step explanation:

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3 years ago
Which is a factor of 15xy − 45x − 6y + 18?
Lisa [10]
I see right away that 3 can be factored out of <span>15xy − 45x − 6y + 18.

The quotient is 5xy - 15x - 2y + 6, so that 

</span>15xy − 45x − 6y + 18   =   3(5xy − 15x − 2y + 6)   (2 factors)
<span>
               or                        3 [ 5x(y-1] - 2 [y-3])


</span>
7 0
3 years ago
Read 2 more answers
45°
ioda

Answer:

   x = \sqrt{\frac{7}{2} }

Step-by-step explanation:

<u><em>Explanation</em></u>

From given graph

          AC = √7

 Given angle ∝ = 45°

    cos\alpha = \frac{adjacentside}{Opposite side}

   cos45 = \frac{x}{\sqrt{7} }

      \frac{1}{\sqrt{2} } = \frac{x}{\sqrt{7} }

       x = \frac{\sqrt{7} }{\sqrt{2} }

      x = \sqrt{\frac{7}{2} }

     x = 1.8708

7 0
3 years ago
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