Answer:
6
Step-by-step explanation:
A = pi r^2
C = 2 pi r
A = B (area)
3C = B
sub C = 2 pi r into 3C = B, and A = pi r ^ 2 into B
3 (2 pi r) = pi r ^ 2
6 pi r = pi r^2
( divide both sides by pi )
6r = r^2
r^2 - 6r = 0
r(r-6) = 0
r = 0 or r-6 = 0
radius can not be 0 , therefore r = 6
hope this makes sense, might be little confusing sorry!
We are not given a specific group that was surveyed, so all we would do is add all the students.
32 + 23 + 31 + 12 + 8 + 30 + 11 = 154
We end up with 154 students that were surveyed.
:)
Answer:
- The product of an even number and an oven number
- The product of an odd number and an odd number
- The product of a perfect cube and a perfect cube
Step-by-step explanation:
The product of two even numbers will have at least two factors of 2, so will be even: <em>even numbers are closed under multiplication</em>.
The product of two odd numbers will be an even number plus 1, so will be odd: <em>odd numbers are closed under multiplication</em>.
The product of two cubes will be the cube of the product of their cube roots: <em>cubes are closed under multiplication</em>.
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The product of two negative numbers will be positive, so <em>the set of negative numbers is </em><em><u>not closed</u></em><em> under multiplication</em>.
The minimum degrees to map onto itself is 360/5 = 45 degrees.
It will take 2 increments for A' to coincide with C.
Answer:
(3,3)
Step-by-step explanation:
Hope this helps