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ad-work [718]
4 years ago
10

How do you simplify 9(5+4y)

Mathematics
2 answers:
nevsk [136]4 years ago
5 0

You can only simplify it down to

45 + 4y

Hope this helps.

Vinvika [58]3 years ago
5 0

You must first simplify this by the distribution property. This means that you will multiply 9 by 5 and 9 by 4y. This now gives you 45+36y.




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What is the Volume of the square pyramid? (Round to the nearest tenth as needed)
goldenfox [79]

Answer:

5229 mm³

Step-by-step explanation:

Volume of square pyramid

\sf \boxed{Volume \ of \ the \ square \ pyramid = \dfrac{1}{3}*b^2*H}

      b = base length = 25 mm

       H = height

         We have to find 'H' using Pythagorean theorem,

              slant height (hypotenuse) = 28 mm

                                                  leg₁ = base length  ÷ 2 = 25÷2 = 12.5

                                                  leg₂ = H

     H² + (12.5)² = 28²

                  H²   = 784 - 156.25

                         = 627.75

                   \sf H = \sqrt{627.75}

                 H = 25.01 mm

          \sf  \text{Volume of square pyramid =$\dfrac{1}{3}*25*25*25.1$ }

                                                     = 5229 mm³

                                                     

       

\sf \boxed{\text{Volume of square pyramid = \dfrac{1}{3}*25*25*28}}

3 0
2 years ago
Read 2 more answers
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3 years ago
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Answer:

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5 0
4 years ago
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