fluffpupkiki
06.05.2020 •
Mathematics
A bicycle tire has a radius that measures 12 inches. Which of the following represents the circumference of the tire.
(A) 6pi inches. (B) 12pi inches (C) 24pi inches (D) 36pi inches
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Ответ:
C) 24pi inches
Step-by-step explanation:
In geometry, the circumference of a circle is the distance around it. That is, the circumference would be the length of the circle if it were opened up and straightened out to a line segment. Since a circle is the edge of a disk, circumference is a special case of perimeter.
Formula:
C = 2(pi)r
So: C = 2(pi)12 OR 24pi inches.
This means your answer is C.
Ответ:
Step-by-step explanation:
Part A:The area of the triangle is 9x²-12x+4
To determine the length of this sqaure we must factor it in a way that we have two indentical expressions multiplide by each other
9x²-12x+4(3x)²-2*3x*2+ 4(3x)²-2*3x*2+4²(3x-2)²The length of the square is 3x-2
Part B:Th area is 25x²-16y²
25x²-16y²(5x)²-(4y)²(5x-4y)(5x+4y)The dimensions of this triangle are:
5x-4y5x+4y