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Sloan [31]
3 years ago
7

How many pennies does it take to build a tower that is 1 centimeter tall?

Mathematics
1 answer:
dezoksy [38]3 years ago
4 0

Answer:

1 penny

Step-by-step explanation:

It would take 1 penny. A penny is taller than 1 centimeter anyway.

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∠A=5x−15 ∘ start color #11accd, angle, A, end color #11accd, equals, start color #11accd, 5, x, minus, 15, degrees, end color #1
andreyandreev [35.5K]

Answer: 45°

Step-by-step explanation:

Given that :

∠A=5x−15°---(1)

∠B=2x+21°----(2)

Equating

∠A = ∠B

(5x−15)° = (2x+21)°

5x - 15 = 2x + 21

Collecting like terms

5x - 2x = 21 + 15

3x = 36

x = 12

Substitute x = 12 in either angle A or B since both are congruent

∠A=(5x−15)°

∠A = (5(12) - 15)°

∠A = (60 - 15)°

∠A = 45°

∠A = ∠B = 45°

4 0
3 years ago
In football, the team that has the ball has four chances to gain at least ten yards, if
guajiro [1.7K]

Answer:

A, C, D I think

Step-by-step explanation:

Hope this helps and feel free to answer my recent question ! :)

4 0
3 years ago
Heelp<br> plsss <br> just read it
goldfiish [28.3K]

Answer:

b

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6 0
3 years ago
A solid shape is made by joining two cones. Each cone has the same radius. One cone has The other cone has slant height = 2x rad
pshichka [43]

The given area of the shape of 57.8·π cm², and length of the slant sides

being a factor of the radius, gives the length of the radius as <u>3.4 cm</u>.

<h3>How can the length of the radius be calculated?</h3>

Given;

Radius of the two cones are equal.

Slant height of one cone = 2 × Radius

Slant height of the other cone = 3 × Radius

Surface area of the shape = 57.8·π cm²

The curved surface area of a cone = π·r·l

Required:

The radius of the cone.

Solution;

Surface areas of the cones are therefore;

π·r × 2·r, and π·r × 3·r

The total surface area is therefore;

π·r × 2·r + π·r × 3·r = 57.8·π

5·r²·π = 57.8·π

Which gives;

r² = 57.8 ÷ 5 = 11.56

r = √(11.56) = 3.4

  • The radius of the cones, r =<u> 3.4 cm</u>

Learn more about finding the surface area of 3-D shapes here:

brainly.com/question/15635229

8 0
2 years ago
Amy worked for 4 hours and made $50. After 6 hours she made $75, and $125 after 10 hours.
sesenic [268]
4 hours = 50$
6 hours = 75$
10 hours = 125$

50 + 75 + 125 = 250?

I'm not sure if I understood your question, because you didn't say like "What is all of these times together?"
8 0
3 years ago
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