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Trava [24]
3 years ago
8

Write an algebraic expression for 15 increased by three times a number n

Mathematics
2 answers:
Trava [24]3 years ago
7 0

Answer:

f(n)= 3n+15

Step-by-step explanation:

zhannawk [14.2K]3 years ago
3 0

(15+3) x n

Is the correct answer

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valentina_108 [34]
  • Answer:

<em>GCF = 38</em>

  • Step-by-step explanation:

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3 years ago
Find the volume of the composite solid. Round your answer to the nearest tenth
Vesna [10]

Answer:

V = 1206.3 ft^{3}

Step-by-step explanation:

This shape is made up of a cylinder on the bottom and a cone on the top. We'll find the volumes of these shapes separately and then add them together.

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V(cylinder) = \pi x 8^{2} x 4

Evaluate using a calculator

V(cylinder) = 804.2477

To the nearest tenth, V(cylinder) = 804.2

Volume of a cone = \frac{\pi r^{2}h }{3}. This is the area of the circular part of the cone (\pi r^{2}), multiplied by the height from the point to the base, all divided by 3.

Substitute in the values for the radius of the circle (8) and the height (6)

V(cone) = \frac{\pi 8^{2} 6 }{3} (On the top it's \pi x 8^{2} x 6)

Evaluate using a calculator

V(cone) = 402.1239

To the nearest tenth, V(cone) = 402.1

Total volume = V(cylinder) + V(cone)

= 804.2 + 402.1

= 1206.3 ft^{3}

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3 years ago
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