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valentina_108 [34]
3 years ago
12

My guys got me right? I’m giving brainliest

Mathematics
2 answers:
jenyasd209 [6]3 years ago
4 0
Is the answer have a great day mwah :)

IrinaVladis [17]3 years ago
3 0

Answer:

1. 12

2. \pi or about 3.14

3. 4.5\pi or about 14.13

4. 12 + 5.5\pi or about 29.27

Step-by-step explanation:

1. The rectangle is 6 by 2

6 * 2 = 12

2. They would combine to form a circle with radius 1, so \pi * 1^2 = \pi, or if you use 3.14 for pi you get 3.14

3. The radius is 3 and it's half of a full circle, so

\pi * 3^2 / 2= 4.5\pi, or if you use 3.14 for pi you get 14.13

4. Adding all of these together, you get 12 + 5.5\pi or if you use 3.14 for pi you get 29.27

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Helga [31]

Answer:

1.77245385091

Step-by-step explanation:

lol I memorized it

6 0
2 years ago
A cylinder has a base diameter of 16cm and a height of 19cm. What is its volume in cubic cm, to the nearest tenths place?
elena-14-01-66 [18.8K]

Answer:

V = 3216.9 cm^{3}

Step-by-step explanation:

Volume of a cylinder = π r^{2} h

We are given diameter, 16cm, and half of it is the radius

r = 8cm

h = 19cm

Substitute the values into the equation

V = π * 8^{2} * 19

V = 3216.9 cm^{3}

4 0
4 years ago
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A student has 6 nickel 14 dimes and 8 quarter. What is the ratio of dimes to quarter ?
Juli2301 [7.4K]

Answer:

14:8 which can be simplified to 7:4 by dividing by 2.

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3 years ago
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irga5000 [103]
<span>4 ⋅ 6 + 5 ⋅ 7 + 6 ⋅ 8 + ... + 4n( 4n + 2) = 4(4n+1)(8n+7)/6 is false because it isn't even true when n=1. 4 ⋅ 6 = 4(4*1+1)(8*1+7)/6 24 = 4(5)(15)/6 24 = 50 Also 4n(4n+2) is not even the correct formula for the nth term. The correct nth term formula of 4 ⋅ 6 + 5 ⋅ 7 + 6 ⋅ 8 + ... is (n+3)(n+5). So it's wrong all the way around.</span>
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4 years ago
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HELP!!!! 15 POINTS!!! BRAINLEIST
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The answer would be 30cm squared


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