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Nimfa-mama [501]
2 years ago
10

Find the volume of a cylindrical container,whose height is 21cm and diameter is 14cm?

Mathematics
2 answers:
Lena [83]2 years ago
4 0

Answer:

1029\pi

Step-by-step explanation:

Volume= \pi x (radius)^{2} x height = \pi x 7^{2} x 21 = 1029\pi

I hope it helps you!

Sati [7]2 years ago
3 0

Answer:

923.75cm³

<h3>steps</h3>

volume of a cylinder πr²h

r=d/2. 14/2 =7cm

volume= 3.142×7²×21

=3,322.12cm³

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harina [27]

Answer:

a)

  • EH = \sqrt{HG^2+EG^2} = \sqrt{4^2+6^2} = \sqrt{16+36} = \sqrt{52} = 2\sqrt{13}

b)

  • EG² = GH*GF
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3 0
3 years ago
What is the standard form of 3 x 1,000 + 5 x 10 + 9 x 0.1 + 6 x 0.001?
torisob [31]
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7 0
2 years ago
The length of a rectangle is five times its width.
Vera_Pavlovna [14]

Answer:

72

Step-by-step explanation:

l = 5w

A = l*w

180 = 5w *w

180 = 5w^2

Divide each side by 5

180/5 = 5w^2 /5

36 = w^2

Taking the square root of each side

sqrt(36) = sqrt(w)^2

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l = 5w = 5*6 = 30

The perimeter is

P = 2(l+w)

P = 2(6+30) = 2(36) = 72

4 0
3 years ago
Janson has quarters and dimes in his pocket. he counted 42 coins that added up to $7.50
vlada-n [284]

Answer:

28 quarters and 5 dimes

7(Q)+5(D)

7(4)+5(10)

28Q      50D          Q=quarters  D=dimes

it would be more efficient to do the substitution method bc its faster and easier

7 0
2 years ago
Read 2 more answers
Directions: Determine how much Marco would be paid
lidiya [134]

Answer:

766.87 is how much he is paid in all.

Step-by-step explanation:

2.5% of 75 is 1.875. 1.875 times 9 is 16.875. 75 times ten is 750. add together to get the whole.

7 0
2 years ago
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