3 years ago

2.5kg cost £1.40 what is the cost of 4.25kg

Mathematics

1 answer:

madreJ [45]3 years ago

8 0

Answer:

it is 5.7

Step-by-step explanation:

4.25 × 1.40

5.95 - 0.25

5.7 or 5.70

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Answer:

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Step-by-step explanation:

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2 years ago

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the

insens350 [35]

Answer:

So, the volume V is

$V=\frac{14\pi}{3}$

Step-by-step explanation:

We have that:

$y=7x\\\\y=0\\\\x=1\\\\x=-4\\$

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$V=2\pi\int_a^b x(g(x)-f(x))\, dx\\\\g(x)>f(x).$

We calculate the volume V, we get

$V=2\pi\int_a^b x(g(x)-f(x))\, dx\\\\V=2\pi\int_0^1 x(7x-0)\, dx\\\\V=2\pi\int_0^1 7x^2\, dx\\\\V=2\pi\cdot 7\left[\frac{x^3}{3}\right]_0^1\\\\V=14\pi\left(\frac{1}{3}-\frac{0}{3}\right)\\\\V=\frac{14\pi}{3}$

So, the volume V is

$V=\frac{14\pi}{3}$

We use software to draw the graph.

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3 years ago

What is the volume of a brick that is 20.3 cm long, 8.9 cm wide, and 5.7 cm high?

Anvisha [2.4K]

Answer:

1029.819

Step-by-step explanation:

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Step-by-step explanation:

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