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3 years ago

6

An engineer is planning a new water pipe installation. The circular pipe has a diameter of d = 20 cm d=20 cmd, equals, 20, start

text, space, c, m, end text. What is the area A AA of the circular cross section of this pipe? Give your answer in terms of pi

1 answer:

gayaneshka [121]3 years ago

4 0

Answer:

Step-by-step explanation:

d = 20

r = 0.5d

r = 10cm

A = πr^2 = 100π cm^2

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Graph the line that represents the equation y=-2/3x+1

____ [38]

Answer:

m= -2/3 b=(0,1)

Step-by-step explanation:

Make your first point at (0,1). then go down 2 over 3. do that until you run out of room. then go back to your first point and go up 2 over 3.

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4 years ago

Mary is two inches more than half as tall as John. Translate the sentence into an equation using M to represent Mary height and

Yuri [45]

M(2)+2=J
Mary is half the height so multiply by 2 then add the extra 2 inches
Ex: 38inches(2)+2=78inches

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4 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

BartSMP [9]

Answer:

x -y =4

Step-by-step explanation:

First find the slope

m = (y2-y1)/(x2-x1)

= (1- -4)/(5 - 0)

= (1+4)/(5-0)

5/5

= 1

Then we can use slope intercept form

The slope is 1 and the y intercept is -4

y = mx+b

y = 1x-4

We want it in standard form

Ax + By = C where A is a positive integer

Subtract x from each side

-x +y = -4

Multiply by -1

x -y =4

8 0

3 years ago

An asset that costs $14,400 and has accumulated depreciation of $8,000 is sold for $5,600. What amount of gain or loss will be r

Advocard [28]

Answer:

There will be an $800 loss

Step-by-step explanation:

The initial cost of the asset is $14,400

When an asset depreciates, it loses its potential value over time. In this case, the total depreciation of our asset is given as $8,000.

The Current value of the asset = Initial Value - Accumulated Depreciation

Current value = $14,400 - $8,000 = $6,400

Since the asset is sold for $5,600, it is clear that this is a loss, as the selling price of $5,600 is less than the actual price of $6,400. So,

Loss = Actual (Cost) Price - Selling Price = $6,400 - $5,600 = $800

6 0

3 years ago

Find the missing side lengths. Leave your answers as radicals in simplest form.

Citrus2011 [14]

This is the isosceles right triangle, the diagonal of a square, the thing that so upset the Pythagoreans. The two sides and diagonal of a square are in ratio $1:1:\sqrt{2}$ so we get

$u = v = 8$

We could have also gotten this using Trig:

$u = (8 \sqrt{2}) \sin 45^\circ = 8 \sqrt{2}/\sqrt{2} = 8$

$v = (8\sqrt{2})\cos 45^\circ = 8$

Or by recognizing u=v because remaining angle is 45 so this must be isosceles so

$u^2 + u^2 = (8 \sqrt{2})^2$

$2u^2 = 2 (8^2)$

$u = 8$

8 0

4 years ago