To convert 42.3 dekameters to kilometers, decide if you should multiply or divide by a power of 10.

2 answers:

7 0

Answer:

DIVIDE

Step-by-step explanation:

THE answer is divide

5 0

1 dekameter is larger than kilometer so divide by power of 10

42.3 decameters = 0.423 kilometers so the power of 10 is 10^2

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stealth61 [152]

Answer:

The volume of the cylinder is approximately 1570.8 cm³.

General Formulas and Concepts:
Pre-Algebra

Order of Operations: BPEMDAS

Geometry

Volume Formula [Cylinder]:
$\displaystyle V = \pi r^2 h$

Step-by-step explanation:

Step 1: Define

Identify given variables.

h = 5 cm

r = 10 cm

Step 2: Find Volume

[Volume Formula - Cylinder] Substitute in variables:
$\displaystyle V = \pi (10 \ \text{cm})^2 (5 \ \text{cm})$
[Order of Operations] Evaluate:
$\displaystyle V = 500 \pi \ \text{cm}^3$
Approximate:
$\displaystyle V \approx \boxed{ 1570.8 \ \text{cm}^3 }$