Answer:
SA = 156π
Step-by-step explanation:
The formula for surface area of a cylinder is
SA = 2πr² + 2πrh where r is the base radius, and h is the height.
We are given r = 6 and h = 7. Plug in those values and evaluate...
SA = 2π(6²) + 2π(6)(7)
SA = 2π(36) + 2π(42)
SA = 72π + 84π
SA = 156π
Answer:
b = 61
Step-by-step explanation:
The sum of the two angles is 90 degrees
b+29 = 90
Subtract 29 from each side
b+29 -29 = 90 -29
b = 61
Answer:
x = 63, y = 27 degrees.
Step-by-step explanation:
From the diagram we see that:
x + y = 90 degrees
Also
x = 180 - 117
= 63 degrees. ( as adjacent angles add up to 180).
Substituting x = 63 into the first equation:
63 + y = 90
y = 90 - 63
= 27 degrees.
The mean will go up, however little
The standard deviation will also go up.
hope this helps