Answer: Step 5
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Reason:
The order of operations is PEMDAS
- P = parenthesis
- E = exponents
- M = multiplication
- D = division
- A = addition
- S = subtraction
The multiplication and division are on the same level of precedent, and the same goes for addition and subtraction. Some math textbooks may refer to PEMDAS as BODMAS, which is basically the same thing.
Notice how division comes before addition. So we must compute the
portion first before adding in step 4.
This is what steps 4 and onward should look like

So that's why the error is in <u>step 5</u>
If there was parenthesis around the "2+10", and we had
, then step 5 given by your teacher would be correct.
Answer:
the value of x= 5
Step-by-step explanation:
hey there!
given;
<em>∠</em><em>P=90°( right angle)</em>
<em>now;</em>
<em>∠p=19x-5</em>
<em>90°+5°=19x</em>
<em>95/19=x</em>
<em>x=5</em>
<u><em>hope it helps!</em></u>
<em />
The theorem would be: If in a triangle two angles equal one another, then the sides opposite the equal angles also equal one another.
This works for any triangle in fact, not just an isosceles (obviously, the theorem implies that the triangle in question is isosceles but you don’t need to know that in advance)