Answer:
-2040
Step-by-step explanation:

The sum of the first 8 terms is -2040.
Answer:
fefsefefdfefd
Step-by-step explanation:
efSdfse
Answer:
I believe it is 1/ 4^3
Step-by-step explanation:
When dealing with negative exponents you convert the number into a fraction. When so, the number 4 in the denominator then has the positive exponent of 3
25 I'm guessing because half of 50 IS 25. So 25 sq m should be the answer.
A = 1/2bh...multiply both sides by 2
2A = bh...divide both sides by b
(2A)/b = h
s = 1/2gt^2...multiply both sides by 2
2s = gt^2...divide both sides by t^2
(2s) / (t^2) = g
H = vt - 5t^2...add 5t^2 to both sides
H + 5t^2 = vt...divide both sides by t
(H + 5t^2) / t = v