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2 years ago

The diameter of a bicycle wheel is 63 cm. How much distance will it cover in 20revolutions?

Mathematics

1 answer:

alina1380 [7]1 year ago

7 0

Answer:

1256 cm

Step-by-step explanation:

First we must find the perimeter, because the perimeter is equal to 1 revolution.

The perimeter of any circle is Pi(Diameter)

3.14*20

62.8 cm is the perimeter of the bike wheel.

Because the perimeter is basically a revolution, we can multiply 62.8 by 20 to get:

1256 cm

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sladkih [1.3K]

X^2+3x+1+4x-1+2x^2
Combine like terms:
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3x+4x=7x
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Solution:
3x^2+7x
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3 years ago

A company uses the declining-balance method of calculating depreciation expense. On January 1, the company buys machinery for $7

NeX [460]

Answer:

$516,000

Step-by-step explanation:

Given:

- Beginning boo value of asset A = $750,000

- The salvage value of the asset B = $100,000

- The estimated life of asset t = 10 years

Find:

What is the book value in year 3?

Solution:

- Under the declining balance method, double declining method depreciation rate (R) is calculated by:

R = 1 / t

R = 1 / 10 = 10%

- The accumulated depreciation for 3 years is as follows:

Depreciation: ( A - B ) * R * 2

Year 1: DDB = ( 750,000 - 100,000 ) * 0.2 = $130,000

Year 2: DDB = ( 620,000 - 100,000)*0.2 = $104,000

- The book value in year 3 is:

$ 620,000 - $104,200 = $516,000

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3 years ago

Here is the final problem jaded

lana [24]

Answer:

x = 12.99

Step-by-step explanation:

Tan(33) = $\frac{x}{20}$

Tan(33) * 20 = x

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Hope this helps!

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3 years ago

3.3.4 practice: modeling: factoring ax2+bx+c

deff fn [24]

I think it should be x(ax +b) + c. Not sure though.

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3 years ago

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daser333 [38]

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3 years ago