Answer:
3 hours
Step-by-step explanation:
50+12h=86
-50 on both sides
12h=36
divide by 12 on both sides
h=3
Answer:
no because for right angle triangle the sum of the sq of the two smallest side is equal to the sq of biggest side
Notice this is a geometric progression since each number multiplied by some factor equals the next number in the sequence, in this case,

Then by applying the formula for sum to infinity of a geometric progression,
Yes (I guess)
(-1, 2) Lies on a line so im guessing it is...