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4 years ago

Please help!! I don't understand it.

Mathematics

1 answer:

True [87]4 years ago

6 0

D = π(bore / 2)² · stroke · n
can be rewritten as
D = π(1/2 * bore)² · stroke · n

If bore = k /2, and stroke = h, and # of cylinders = n = 8, then

D = π(1/2 * k/2)² · h · 8
= 8π*h(k/4)²
= 8π*h(k²/16) since (k/4)² = k²/4² = k²/16
= π*h*k²/2

Answer for the first part: D = π*h*k²/2

For second part, if bore = 4 inches, stroke is 3.4 inches, and # cylinders = n = 4, then

D = π(1/2 * bore)² · stroke · n
D = π(1/2 * 4)² · 3.4 · 4
D = 170.9 cubic inches

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kramer

Answer:

<em>Sam is 30 years old, and Harry is 10 years old.</em>

Step-by-step explanation:

Let us assume that the age of Sam is x and the age of Harry is y.

Sam is currently is three times Harry's age.

So, $x=3y$ ----------------------1

Sam's age is also 10 more than twice Harry's age.

so, $x=2y+10$ ---------------2

Subtracting 2 from 1, we get

$\Rightarrow x-x=3y-2y-10$

$\Rightarrow 0=y-10$

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putting this in equation 1,

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3 years ago

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3 years ago

Calculate the radius of a circle if it’s circumference is 37.7cm

Eddi Din [679]

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3 years ago

Find the area of an equilateral triangle (regular 3-gon) with the given measurement. 6-inch radius A = sq. in.

anzhelika [568]

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3 years ago

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Answer:

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Step-by-step explanation:

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