Answer:
a cone with a base circumference of about 126 mm
Step-by-step explanation:
Rotating a triangle about a line results in a cone created by the rotation. This is because the segment at the bottom forms a circle, and the point at the top stays there; the three-dimensional figure with a circular base and a point at the top is a cone.
Since we rotate the segments about a line, this makes the length of the base the radius of the circle. This means the circumference would be
C = 2πr = 2(3.14)(20) = 125.6 ≈ 126 mm
Answer:


Step-by-step explanation:
Since we believe it
The number sequence is that those which can be described as
and that is not ending and recurring. Figures that are unreasonable are also the ones, that are not
and therefore are non-ending, non-recurring.
The number sequence is 
Rational amount since it is classified as
.
is really a rational number.
is a real function, since it does not end but repeats it.
The rational number 
Unreasonable number
.
Answer:
16 nickels
Step-by-step explanation:
I just divided 32 by 2 I don't know if its completely right though
Answer:
-9/10
Step-by-step explanation:
when dividing fractions, the second fraction flips upside down. Then you just multiply.
-4/5 divided by 8/9 becomes -4/5 * 9/8 = -36/40 = -9/10
The answer would be 8+14 because there are 4 sides not 2