Answer:
See below.
Step-by-step explanation:
In all triangles, the three interior angles will add up to 180°. Therefore:
Remember that the little square means a right angle.
Now, solve for <em>x</em>.
Now, plug <em>x </em>back into the equations to find each angle:
1)
2)
3)
9C5 = 9!/[5!(9-5)!
9C5 = 9!/(5!)(4!)
You finish.
7P4 = 7!/(7-4)!
7P4 = 7!/3!
You finish.
Just subtract the two. 10x^8 - -15x^8. The answer is 25x^8 because the two negatives come together to make a plus.
Step-by-step explanation:
the answer is in the image above