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IRINA_888 [86]
4 years ago
7

I dont know how to do this

Mathematics
1 answer:
dimaraw [331]4 years ago
4 0
The formula of a surface area of a cylinder:
S.A.=2\pi r(r+H)

We have:
r=1m;\ H=10m
substitute:
S.A.=2\pi\cdot1\cdot(1+10)=2\pi\cdot11=22\pi\ m^2\approx22\cdot3.14=69.08\ m^2

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How can I find the y-intercept of 3x-2y≤10?
frosja888 [35]

Answer:

Step-by-step expla3

x − 2 y < 10

Solve for  y .

Tap for more steps...

y > − 5+ 3 x 2

Find the slope and the y-intercept for the boundary line.

Tap for more steps...

Slope:  

3 2

y-intercept:  

( 0 , − 5 )

Graph a dashed line, then shade the area above the boundary line since  

y

is greater than  

− 5 + 3 x 2 . y > − 5 +3 x2

4 0
3 years ago
What does y equal y-16-3y=0
Afina-wow [57]

Answer:

y = - 8

Step-by-step explanation:

y - 16 - 3y = 0

Group like terms

y - 3y - 16 = 0

Add similar elements: y - 3y = - 2y

- 2y - 16 = 0

Add 16 to both sides

- 2y - 16 + 16 = 0 + 16

Simplify

- 2y = 16

Divide both sides by - 2

\frac{-2y}{-2} = \frac{16}{-2}

Simplify \frac{-2y}{-2}: y

\frac{-2y}{-2}

Apply the fraction rule: \frac{-a}{-b}  = \frac{a}{b}

= \frac{2y}{2}

Divide the numbers: \frac{2}{2}  = 1

= y

Simplify \frac{16}{-2}: - 8

\frac{16}{-2}

Apply the fraction rule: \frac{-a}{-b}  = \frac{a}{b}

-\frac{16}{2}

Divide the numbers: \frac{16}{2} = 8

= - 8

y = - 8

7 0
3 years ago
Can somebody please help me count money I don’t wanna ask my family they always judging me and I need help is there anyway I can
topjm [15]

Answer:

Put in the question that you need help with

Step-by-step explanation:

I would probably be able to answer it for you.

4 0
4 years ago
Jennifer has 4/5 as many oictures on her camera as luisa does. Jennifer has 28 pictures on her camera. How many pictures do Jenn
spayn [35]
Answer=63 pictures

Jennifer=4/5*Luisa

Jennifer=28
Substitute '28' for Jennifer

28=4/5*Luisa
divide both sides by 4/5
35=Luisa

Luisa has 35 pictures on her camera

35+28=63
8 0
3 years ago
I need help and i would appreciate it and can you explain (That's if you can explain)
Finger [1]

Answer:

x=-2

y=-3

Step-by-step explanation:

-9x+4y = 6

9x+5y = -33

We will add these together to eliminate x

-9x+4y = 6

9x+5y = -33

----------------

0x +9y =- 27

9y = -27

Divide by 9

9y/9 = -27/9

y =-3

We still need to find x

9x +5y = -33

9x +5(-3) = -33

9x-15 = -33

Add 15 from each side

9x+15-15 =-33+15

9x=-18

Divide by 9

9x/9 = -18/9

x = -2

6 0
4 years ago
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