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2 years ago

What do 2psi mean in a math class

1 answer:

5 0

Psi stands for pounds per square-inch.
It is a measure of pressure, and is the equivalent pressure of putting one pound on a square-inch of area.
For example, someone weighing 180 pounds standing on his feet, with a footprint area of 72 square-inches would exert a pressure of 180 pounds/72 square inches = 2.5 pounds per square-inch, or 2.5 psi.

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Lena [83]

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2 years ago

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What’s the volume of a cylinder with a radius of 6ft and height of 14ft? pls show work

Daniel [21]

Answer:

Given -

radius of cylinder = 6 ft
height of cylinder = 14 ft

Now ,

$volume = \pi \: r {}^{2} h \\ = > \frac{22}{\cancel{7}} \times 6 \times\cancel{ 14} \\ \\ = > 22 \times 6 \times 2 \\ = > 264 \: ft {}^{3}$

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2 years ago

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.

faltersainse [42]

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

(x/2)² = 2*x

x²/4 = 2*x

x = 2*4 x = 8 and y = 8/2 y = 4

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]

V = 34,13*π cubic units

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2 years ago

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liubo4ka [24]

Answer:

Step-by-step explanation:

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2 years ago

How many 2/3s are in 6?

cestrela7 [59]

Answer:

Step-by-step explanation:

6/(2/3)= 6*3/2=18/2=9

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3 years ago