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VladimirAG [237]
3 years ago
15

A wheel with a diameter of 25 in. is in a puddle of water 8.1 in. deep. What is the width of the wheel, AB, at the surface of th

e water?
Please actually answer the question <3

Mathematics
1 answer:
solniwko [45]3 years ago
8 0

Answer:

The length AB is 23.4in

Step-by-step explanation:

N/B please see the attached detailed diagram for your reference and better understanding

This problem bothers on the mensuration of flat shapes.

The width AB is the chord of the wheel

The radius of the whee r= 25/2= 12.5in

The depth of the wheel in the puddle is 8.1in

Let b be the distance from the surface AB to the diameter

b= 12.5-8.1  = 4.4in

Applying the formula

Chord Length = 2 *√(r²-b²)

=2*√(12.5²-4.4²)

= 2*√(156.25-19.36)

=2*√(136.89

=2*11.7

=23.4in

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Answer:

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Step-by-step explanation:

firstly, -3/12 is not in the simpliest form so we have to simplified it:

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The upper part of the equation: (-6*(-1/4)*-4*5) can be simplified as:

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Hope this help you :3

8 0
3 years ago
We wish to construct a 90% confidence interval on the mean of a population known to be normally distributed based on a sample of
sergiy2304 [10]

Answer:

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Step-by-step explanation:

We are given the following information in the question.

Sample size, n = 20

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Margin of error:

t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

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7 0
3 years ago
HELP MEEEE PLEASEEEE!!!!!
ad-work [718]

Answer:

{x| -2 ≤ x < 5}

Step-by-step explanation:

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Look here for visuals:

8 0
2 years ago
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ikadub [295]

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IRINA_888 [86]
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3 0
3 years ago
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