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Ivahew [28]
2 years ago
11

Can someone please help me with this question, I have multiple of them and have no idea where to start. If you can help me with

this please show how you got it because im clueless

Mathematics
1 answer:
In-s [12.5K]2 years ago
8 0

Answer:

Step-by-step explanation:

( 3x - 7 )° + ( 9x - 2 )° + ( x + 7 )° = 180°

13x = 182

x = 14

m ∠ A = ( 3 × 14 - 7 )° = 35°

m ∠ B = ( 9 × 14 - 2 )° = 124°

m ∠ C = ( 14 + 7 )° = 21°

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Phoenix [80]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
What is the volume of a cone that has a diameter of 18 centimeters and a height of 12 centimeters?
sveta [45]

Answer:

1018.28

Given -

Diameter of cone = 18 cm

To get the radius divide it by 2 -

Radius, r = 18/2 = 9

height, h = 12 cm

To find -

Volume of cone.

Solution -

Volume = 1/3 hπr²

→ V = 1/3 18 × 22/7 × 9 × 9

→ V = 7128/7

→ V = 1018.28

Therefore, the volume of the cone is 1018.28.

5 0
3 years ago
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natka813 [3]

Answer: A and C

Step-by-step explanation:

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6 0
2 years ago
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weeeeeb [17]

Answer:

Both angles are 51°

Step-by-step explanation:

By the Vertical Angles Theorem, both angles are congruent.

Step 1: Set up equation

68 - x = 3x

Step 2: Solve for <em>x</em>

68 = 4x

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4 years ago
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Answer:

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