Answer:
90
Step-by-step explanation:
To find s4 we find sum of values when n=1,n=2,n=3,n=4
given expression is 
n=1 , plug in 1 for n

n=2

n=3

n=4

Sum of all 4 terms = 6+12+24+48=90
Answer:

Step-by-step explanation:
The formula of a volume of a cylinder:

r - radius
H - height
We have the height H = 3ft and the radius r = 4ft. Substitute:



Hello!
if x = -3, just substitute it for x (replace the x with -3)
2(-3) + 6 = 0
2 * -3 = -6
-6 + 6 = 0
I hope this helps, and have a nice day!
Answer:
number 1 or A i got it
Step-by-step explanation:
Answer: Friday
Step-by-step explanation: If you had hot sandwiches, tacos, and salad on every day of the week except for Friday, then pizza would be served on Friday. Hope this helped!