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harina [27]
3 years ago
14

36° Diagram NOT accurately drawn Work out the size of angle y.

Mathematics
2 answers:
vichka [17]3 years ago
4 0
Answer = 288

Method:
Angles in a triangle add up to 180
The triangle is isosceles so the two interior angles at the bottom will be the same
180-36=144
Because you have two angles at the bottom you need to divide by two so
144/2=72 - that is the interior angle
To find y, all you need to do now is
360-72 = 288 (because angles round a point add up to 360)
And you have your answer
Hope this helps!
vovikov84 [41]3 years ago
3 0
The angles in a isosceles triangle add up to 180 degrees.
so 180 degrees take away 36 degrees = 144 degrees.
base angles in a isoceles triangle are equal so 144 divided by 2 = 72 degrees.
so to find out y you do 360 - 72 = 288 degrees
therefore y = 288degrees
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qaws [65]

The first answer of part A is 32

So 4y means you have to multiply 4 by y, which is 20 since 4x5=20

And then you add 12, which is 32.

The second answer to part A is 40

With the second question of part a, the expression is basically saying 4 times whatever 5+3 is. So 5+3= 8, and 4(8) is 40

For part B, they are equivalent because let’s pretend y=2. 12+4y= 20. And then 4(y+3) would equal 20 because 4(2)=8 and 4(3)=12 and 8+12=20. This might not be the answer that your teacher is looking for, but it’s still a right answer so technically they can’t say it’s wrong unless you have a super unfair teacher

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3 years ago
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Katarina [22]

Answer:

-27

5

10

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Step-by-step explanation:

-9*3=-27   -*+=-

-25/-5=5   -/-=+

7-(-3)=7+3=10  -(-)=+

-2+-11=-13   -+-=-

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Leya [2.2K]

Answer:

Your answer is 3/25

Step-by-step explanation:

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how many floors the elevator goes down per unit of time

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Maksim231197 [3]
You have to remember P.E.M.D.A.S. when doing problems like this.
Drew used PEMDAS so we know he isn't wrong. However, Sam didn't use PEMDAS. She multiplied 2&5 instead of raising 5 to the second. 
The correct answer for Sams' problem would be 30.
Hope this helps! :)
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3 years ago
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