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3 years ago

9

I don’t know this one

2 answers:

torisob [31]3 years ago

5 0

Answer:

3077.2

Step-by-step explanation:

A circle's mass is found by

Pie times R^2

7^2 is 49, times 3.14 is 153.86

then you Multiply 153.86 by 20 which gives you 3077.2

Alexxx [7]3 years ago

5 0

Volume of a cylinder = pi r^2 * h
Pi 7^2 * 20
Volume = 49 pi

Density = mass/ volume
2.5= mass/ 49 pi
Mass= density * volume
= 2.5*49 pi
= 245/2 pi
= 384.845...
=384.8 g to 1 dp

Answer= Volume

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Natasha_Volkova [10]

Answer:

3/5

Step-by-step explanation:

To have the best chance of pulling a pair with the same color you should try to get a pair of black socks. There is a 3/5 chance of pulling a black sock so this means for every 5 socks you pull you get 3 black socks or 2 navy socks. Either way you will get a pair of socks with the same color. (Double check to make sure I'm correct)

4 0

3 years ago

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Find the equation of this line<br><br> y = [?]x + [ ] <br> Please help

larisa [96]

<h2>Writing an Equation of a Line in Slope-Intercept Form</h2><h3>Answer:</h3>

$y = [ -2 ] x + [ 1 ]\\$

<h3>Step-by-step explanation:</h3>

<em>Please refer to my answer from this Question to know more about Slope-Intercept Form: <u>brainly.com/question/24599351</u></em>

We must first find the slope.

<em>Please refer to my Answer from this Questions to know more about Slopes of a Line:</em>

<em><u>brainly.com/question/24640665</u></em>
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We can see the marked points, $(0,1)$ and $(4, -7)$ , are on the line.

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2 years ago

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Answer:

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Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Solve the equation 121x2+64=0

olganol [36]

Answer:

x = ± 8i/11

Step-by-step explanation:

121x2+64=0

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x = +/- √(-64/121)

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4 0

3 years ago

Pls any one it's urgent

vichka [17]

Answer:

<h2><em><u>1. x = 36 is the answer.</u></em></h2><h2><em><u>2. x = 123 is the answer.</u></em></h2>

Step-by-step explanation:

1. 4x = angle 4

x = angle 1

Angle 1 + angle 4 = 180

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<h2><em><u>x = 36.</u></em></h2>

<em><u></u></em>

2. 55 = angle 2

angle 1 = 68

angle 3 = 55 + 68 = 123 = 180 - 123 = 57

Angle 4 = 57

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Hope this helped,

kavitha

4 0

3 years ago