3 years ago

If a varies jointly with b and c and a = 2.53 when b=5.5 and c = 0.92. Find the constant of variation.

Mathematics

1 answer:

SOVA2 [1]3 years ago

4 0

Answer:

0.9

Step-by-step explanation:

0.9

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Step-by-step explanation:

x=5,y=-1

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3 years ago

Evaluate the integral Find the volume of material remaining in a hemisphere of radius 2 after a cylindrical hole ofradius 1 is d

algol13

You want to find the volume inside the hemisphere $x^2+y^2+z^2=4$ (i.e. inside the sphere but above the plane $z=0$ ) and outside the cylinder $x^2+y^2=1$ . Call this region $R$ .

In cylindrical coordinates, we have

$\displaystyle\iiint_R\mathrm dV=\int_0^{2\pi}\int_1^2\int_0^{\sqrt{4-r^2}}r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$

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(where $u=4-r^2$ )

$\displaystyle=\pi\int_0^3\sqrt u\,\mathrm du$

$=\dfrac{2\pi}3u^{3/2}\bigg|_0^3=2\sqrt3\,\pi$

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3 years ago

What is 50% off $55.oo?

AnnZ [28]

50% of $55 = $27.50

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2 years ago

Use the formula r=log^10L, where r is the measurement of the Richter scale and l is the intensity, to find the Richter scale mea

Alborosie

Answer:

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Step-by-step explanation:

If you use your calculator, press the log function button. Then type this (10 x 184,000,000). It will now give you your final answer.

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Step-by-step explanation:

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