An=a1+(n-1)d
A15=6+(15-1)2
A15=6+(14)2
A15=6+28
A15=34
Answer=34
Answer:
15
Step-by-step explanation:
20^2 + x^2 = 25^2
= 400 + x^2 = 625
= x^2 = 225
= x = 15
can you provide a picture please
C) <u>Multiply the top equation by 3, multiply the bottom equation by -2, then add the equations.</u>
