Answer:
33.5
-by-step explanation:
8.5 + (12 + 4) × 2 - 7
Use PEMDAS ( I think this is right hope it helps!)
Answer:
C. 55
3.5x + 15
Step-by-step explanation:
i found it on google
We can parameterize this part of the cylinder using

with

and

. Then the surface element is


so the area is given by the surface integral, where

denotes the part of the cylinder in question,

Probably less work would involve a simpler geometric approach, but it doesn't hurt to practice setting up a proper surface integral.
To get the mean, you add all of the numbers, and then divide the answer by the number of numbers.
15+(-6)= 9
9+12= 21
(21+x= q )⬅️ignore this for now, that's where the unknown number would have been
The mean = 5, and the number of numbers is 4, so basically, you find 5•4=20
So take the 21 from before, and if you add -1, you get 20!
So, x= ➖1⃣!!!!!!! (That's a -1)