Answer:
2656.31 
Step-by-step explanation:
To calculate the surface area, we need to find the area of all the faces, and add them together.
The faces of the cylinder are: the rectangular base, the curved top, and the two semicircles on the side.
Rectangular base:
A = length x width
A = 29.3 x 16.2
A = 474.66
Two semicircles:
A =
x
(I'm using the formula for a circle, because the two semicircles are identical, so together they form a circle)
radius = 29.3/2 = 14.65
A =
x 
A = 674.256 (rounded to 3 decimal places)
Curved top:
The curved top, when flattened out, becomes a rectangle with a length of 16.2. The width is equal to half the circumference of the circle formed by the two semicircles.
To find the width, use the circumference (C) formula.
C =
x diameter
diameter = 29.3
C =
x 29.3
C = 93.049 (rounded to 3 DP)
Area (of curved top) = length x width
A = 16.2 x 93.049
A = 1507.394 (rounded to 3 DP)
Surface Area
SA = 474.66 + 674.256 + 1507.394
SA = 2656.31 
Answer:
Mike is thinking of the number 48.
Step-by-step explanation:
48 is a 2-digit number.
48 is a factor of 4 and 8.
The sum of the digits of 48 is 12.
48 satisfies all of these requirements, therefore the number is 48.
If this answer is correct, please make me Brainliest!
Answer:
5x^2+10x+6
Step-by-step explanation:
add 2x^2 & 3x^2
add 4x and 6x
add 1 and 5