Answer:
14x^2 -4x+17
Step-by-step explanation:
10x^2 + 3x + 9 - ( -4x^2+7x-8) =
10x^2 + 3x + 9 +4x^2 -7x +8 add the 'like' terms
= 14x^2 -4x + 17
Answer:
QUESTION:
Can sides of a triangle have lengths of 3, 11, and 12 ??
ANSWER:
Yes. It's called an equilateral triangle, and it can work because two side lengths added together are bigger than the third side.
Step-by-step explanation:
Hope that this helps! :)
Have a great rest of your day/night!
Answer:
Step-by-step explanation:On the given diagram you see two right triangles with equal hypotenuses and pair of equal angles.
Based only on the information given in the diagram you can conclude that triangles are congruent by HA theorem (the HA theorem states that "if the hypotenuse and an acute angle of one right triangle are congruent to the hypotenuse and an acute angle of another right triangle, then the two triangles are congruent").
Also you can conclude that triangles are congruent by AAS Postulate (the AAS Postulate states that "if two angles and a non-included side of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent").
