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iVinArrow [24]
3 years ago
13

Can someone help me please?

Mathematics
2 answers:
ladessa [460]3 years ago
4 0

Answer:

25/28 thats your answer

Vera_Pavlovna [14]3 years ago
4 0
The answer is 25/28
You can use the popcorn trick to do mixed numbers
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Use the Shell Method to find the volume of the solid obtained by rotating region under the graph of f(x)=x^2+2 for 0≤x≤5 about x
Irina18 [472]

For each <em>x</em> in the interval 0 ≤ <em>x</em> ≤ 5, the shell at that point has

• radius = 5 - <em>x</em>, which is the distance from <em>x</em> to <em>x</em> = 5

• height = <em>x</em> ² + 2

• thickness = d<em>x</em>

and hence contributes a volume of 2<em>π</em> (5 - <em>x</em>) (<em>x</em> ² + 2) d<em>x</em>.

Taking infinitely many of these shells and summing their volumes (i.e. integrating) gives the volume of the region:

\displaystyle 2\pi \int_0^5 (5-x)(x^2+2)\,\mathrm dx=2\pi\int_0^5 (10-2x+5x^2-x^3)\,\mathrm dx=\boxed{\frac{925\pi}6}

4 0
3 years ago
WILL BRAINLIEST IF ANSWER IS RIGHT!!!!!!!!!!!!!!!!!!!!!! PLEASE HELP!!!!!! 50-100 POINTS!!!!!!!!
zzz [600]

Answer:

241 tons

Step-by-step explanation:

312-170=142

142÷2=71

170+71=241

241+71=312

train B weighs 241 tons

3 0
3 years ago
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<u>Part</u><u> </u><u>1</u> 6(1.20)+4(1.05)=$11.40

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Answer: C & D

Step-by-step explanation:

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3 years ago
Change mixed fraction to improper fraction.
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Answer:

2 3/4 = 11 /4

8 2/3 = 26/3

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2 years ago
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