Answer:
Its D
Step-by-step explanation:
just put the answear stop putting this bs
Answer:
254 ft
Step-by-step explanation:
first find the legs of the triangle.
you already know 65, and you would get another leg by 83-50, which equals 33.
Next use pythagorean theorem to find the other leg
a^2+b^2=c^2
rearrange so you find a leg
a^2=c^2-b^2
a^2=65^2-33^2
a^2=4225-1089
a^2=3136
a=56
Now you know that the missing leg is 56. Since that leg is the same as the short side of the rectangle, you 83+50+65+56=254
25.9272, so it's basically 25.93.
So the ratio of boys to girls is 12:24.. now, is that an equivalent ratio as 2 boys for 4 girls? or 2:4? let's see.
you could start simplifying the 12/24 fraction by dividing by some common multiple, say 2, and get 6/12, then divide by 3 and get 2/4 and stop there.
then you'll notice that 12/24 is really 2/4 in disguise.
Sum of terms of a geometric series
Sn = a1 (r^n-1)/(r-1)
a1 = 1st term = 7
n = number of terms = 9
r = common ratio = -3
Sn = 7 ((-3)^8-1)/(-3-1) = -11480
Hence the sum is -11480.