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Aleks [24]
2 years ago
5

Can anyone help me please

Mathematics
1 answer:
labwork [276]2 years ago
6 0

Answer:

(D. 12/3

Step-by-step explanation:

pls tell me if im wrong

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7 × (–3) × (–2)2 = ? <br><br> A. 84<br> B. 48<br> C. –84<br> D. –48
Dahasolnce [82]


7 × (-3) ×(-2)2 =

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3 years ago
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Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.
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Answer:

V = 34,13*π   cubic units

Step-by-step explanation: See Annex

We find the common points of the two curves, solving the system of equations:

y²  = 2*x                           x = 2*y  ⇒  y = x/2

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Then point  P ( 8 ;  4 )

The other point Q is  Q ( 0; 0)

From these  two points, we get the integration limits for dy ( 0 , 4 )are the integration limits.

Now with the help of geogebra we have: In the annex segment ABCD is dy then

V = π *∫₀⁴ (R² - r² ) *dy   =  π *∫₀⁴ (2*y)² - (y²/2)² dy =  π * ∫₀⁴ [(4y²) - y⁴/4 ] dy

V = π * [(4/3)y³ - (1/20)y⁵] |₀⁴

V =  π * [ (4/3)*4³ - 0 - 1/20)*1024 + 0 )

V = π * [256/3  - 51,20]

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You know how a puppy is a kind of dog, but not all dogs are puppies? Well, the same thing is true for lots of other categories of things, including squares and rectangles.

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3 years ago
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3 years ago
Hey <br>what is 6/5 ÷ 10/7 in the simplest form possible​
d1i1m1o1n [39]

Exact Form: 21/25

Decimal Form: 0.84

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