Answer: Option A.
Step-by-step explanation:
You need to use this formula for calculate the surface area of the right cylinder:

Where "r" is the radius and "h" is the height.
You can identify in the figure that:

Knowing this, you can substitute these values into the formula
, therefore you get that the surface area of this right cylinder is:


Answer:
11
Step-by-step explanation:
Answer:
- 3a + 6
Step-by-step explanation:
subtract and add like items together like
- 4a + a = -3a
b-b= 0
and
9-3 = 6
so the answer is
-3a +6
Answer:
About 8.6
Step-by-step explanation:
d=(x2-x1)^2+(y2-y1)^2
8=x1 8=y1 3=x2 1=y2
(3-8)^2+(1-8)^2
(-5)^2+(-7)^2
25+49
74
take the square root and you get about 8.6
Step 2 is wrong: 4x - x = 5x
X = -11 is the actual answer, pretty sure.
Hope this helps and please mark as brainliest. If you have any other doubts, feel free to ask.