Step-by-step explanation:
the first one is the correct one
a, = -51+12(n-1)
a(2) = -51+12(2-1)=-39
I hope this helps
Im sure from the answer
but I couldnt explain it exactly
Answer:
I think x = 1.5
Step-by-step explanation:
23 - 17 = 6
6 ÷ 4 = 1.5
Answer:
73
Step-by-step explanation:
Do the stuff in parenthesis first then do the stuff out of parenthesis EX:
4 to second power is 16 plus three is 19 plus two is 21 then add three to get 24 and seven to the second power is 49 add that and you get 73
Answer:
176.7cm^2
Step-by-step explanation:
Area of circle = π ×r^2
π×15^2
and then divide by 4 because it's one quarter of a circle
