Answer:
-19
Step-by-step explanation:
It's -19 I took the test
Proof in the picture below
<span>So we need to explain how we know 21/30 is greater than 2/3. Well lets expand 2/3 by multiplying the numerator and the denumerator by 10. That way we get 20 / 30. Since 21/30 has 1/30 more than 20/30 we can clearly see that 21/30 is greater than 20/30 or 2/3.</span>
If at least two sides and one angle of two triangles are similar, then the triangles are congruent.
What in mathematics is the congruent?
- It is claimed that two figures are "congruent" if they can be positioned exactly over one another.
- Both the shape and size of the bread slices are same if you lay one slice on top of the other.
- Congruent refers to having precisely the same form and size.
Use the Third Angles Theorem for two figures are congruent.
When two of a triangle's angles match up with two of another triangle's angles, the third angle must likewise match up.
If at least two sides and one angle of two triangles are similar, then the triangles are congruent.
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we have given an equation 
we need to simplify the given equation.
the distributive property is used here 
if we simplify the terms
we get 
.
