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Ilya [14]
1 year ago
11

What is the measure of

Mathematics
1 answer:
Art [367]1 year ago
5 0
I believe it’s the bottom option since both triangles are the same and a triangle is 180° and if you subtract 60° you’ll get 120°
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He simultaneous equations<br>5x + y = 21<br>x - 3y = 9 <br><br>With working out​
Elza [17]

Answer:

see explanation

Step-by-step explanation:

Given the 2 equations

5x + y = 21 → (1)

x - 3y = 9 → (2)

Multiply (1) by 3 and add the result to (2) to eliminate y term

15x + 3y = 63 → (3)

Add (2) and (3) term by term

(x + 15x) + )- 3y + 3y) = (9 + 63)

16x = 72 ( divide both sides by 16 )

x = 4.5

Substitute x = 4.5 into (1) for corresponding value of y

22.5 + y = 21 ( subtract 22.5 from both sides )

y = - 1.5

Solution is (4.5, - 1.5 )

8 0
3 years ago
Help would be appreciated​
Vesnalui [34]

Answer:

<u>5x+10</u>

27x

Step-by-step explanation:

cross multiply

4 0
3 years ago
Which distribution is positively skewed?​
Mashcka [7]
Choice C !! Hope this helps
8 0
3 years ago
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Sliva [168]
I believe the answer is C
4 0
2 years ago
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Please someone factorise x^2 + 8x + 16​
lukranit [14]

Answer:

i tihnk it is = − 4 im sorry if it is wrong

Step-by-step explanation:

6 0
3 years ago
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