Answer:
2.5
Step-by-step explanation:
X × 3=7.5
divide by 3
x=2.5
All I know is that question 1 is B and I think for question 3 is Sammy is correct.
(3x +3) (x - 4)
3x(x - 4) + 3(x - 4)
3x^2 - 12x + 3x - 12
3x^2 - 9x - 12
The triangle is an Corollary 1 to the isosceles triangle theorem.
Given that,
In the picture we have a triangle,
We have to find which triangle is it.
From the triangle,
The 2 sides are equal and the 2 angles are also equal.
So, The triangle is an Corollary 1 to the isosceles triangle theorem.
According to the isosceles triangle theorem, if two triangle sides are congruent, then the angles across from those sides are likewise congruent.
An isosceles triangle is one with two sides that are the same size and a third side that is a different size.
Therefore, The triangle is an Corollary 1 to the isosceles triangle theorem.
To learn more about triangle visit: brainly.com/question/2773823
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As there is no any equation, I can't answer your question.
