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enyata [817]
3 years ago
14

Find the value of x

Mathematics
1 answer:
Doss [256]3 years ago
8 0

Answer:

x = 40

Step-by-step explanation:

The three angles in a triangle add to 180 degrees

x + 30 + (3x-10) = 180

Combine like terms

4x +20 = 180

Subtract 20 from each side

4x+20-20 = 180-20

4x= 160

Divide each side by 4

4x/4 =160/4

x = 40

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anyanavicka [17]

Answer:

third option; 70 cm²

Step-by-step explanation:

<u>Rectangle:</u>

5 x 10 = 50

<u>Triangle:</u>

1/2bh

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20

<u>Total area:</u>

50 + 20 = 70 cm²

5 0
2 years ago
Read 2 more answers
If you are good at determining sequences please help! (Show work)
ziro4ka [17]

Answer:

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Step-by-step explanation:

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Please mark brainliest :)

8 0
3 years ago
Will give brainliest, <br> (404/4)x(2x2) to the power of 2.
Ganezh [65]

Answer:

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Step-by-step explanation:

If it's the sign of multiplication

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or,

If it's x

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(101)x(2x2)

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2611456

I am not sure if it's right

7 0
3 years ago
Find the length of AB if AC = 18 and BC = 7.
navik [9.2K]
I’m going to guess the the line is AC and B is the midpoint, if this is what ur asking this is ur answer
18-7
Answer
AB=11
5 0
2 years ago
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6 0
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