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2 years ago

A bar of lead is in the shape of a rectangular prism 2 cm by 3 cm

Mathematics

1 answer:

svetoff [14.1K]2 years ago

5 0

Answer:

Step-by-step explanation:

V = L * W * H

L = 4

W = 3

H = 2

V = 4 * 3 * 2

V = 24

Density = mass / Volume

density = 11.34

volume = 24

mass = ?

11.34 = mass / 24 Multiply both sides by 24

11.34 * 24 = 24 * mass /24

mass = 272.16 grams

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2 years ago

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$=\displaystyle2\int_{u=0}^{u=2\pi}\int_{v=0}^{v=3}(v^2+4)\,\mathrm dv\,\mathrm du+\int_{r=0}^{r=2}\int_{\theta=0}^{\theta=2\pi}r^3\,\mathrm d\theta\,\mathrm dr+\int_{r=0}^{r=2}\int_{\theta=0}^{\theta=2\pi}r(r^2+9)\,\mathrm d\theta\,\mathrm dr$
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alexira [117]

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Step-by-step explanation:

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2 years ago

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