The surface area is 188.4 m²
1.) First find the area of the circle.
A = πr²
A = 3.14 (3)²
A = 3.14 (9)
A = 28.26 m²
2.) Find the area of the other circle. We need to multiply the radius (3 m) by 2 to solve for the circumference.
3 * 2 = 6 m
3.) Now solve for the circumference of the second circle.
C = πd
C = 3.14 (6)
C = 18.84 m
4.) Find the area of the rectangle. The net of a cylinder includes two circles and a rectangle.
(The circumference that was solved was for us find the area of the rectangle. We only had 7 m for one of the dimensions of the rectangle.)
Now we have 18.84 m as the length of the rectangle and 7 m as the width.
A = lw
A = 18.84 (length) * 7 (width)
A = 131.88 m²
5.) Add the area of the circle two times with the area of the rectangle.
28.26 + 28.26 + 131.88 = 188.4 m²
I hope this helps. Im not good at explaining things, especially about math :’)
I^2 = -1
-6(3i) = -18i
-18i(-2i) = 36(i^2)
36(i^2) = 36(-1)
36(-1) = -36
i^2 = -1
2(3 - i)(-2 + 4i) :(do foil)
2(-6 + 12i +2i - 4i^2)
-2 (-6 + 14i +4)
-2(-2 + 14i)
4 -28i
4-28i is your answer
hope this helps
Answer:
0.64
Step-by-step explanation:
Answer:
I think it is B
Step-by-step explanation:
<span>The majority of the scores on the in test are between 85 to 115. This makes the mean 100 and the standard deviation 15. Anyone who scores above or below this range is ether more intelligent or less intelligent then the majority of participants in the test. Since Clara scored 118 she is smarter than most of the adults on this study.</span>