Circumcerence = distance travelled in one full rotation = 2 x π x 8 = 16π
for 2 minutes and 15 seconds,
multiply 16π by 2.25 as 2 minutes is twice the distance of one rotation and 15 seconds is a quarter more
therefore answer is 36π = 113.1 inches
Answer:
About 220 minutes.
What you have to do is divide 17 by 12 and multiply it by 155. After that, round the decimal up since the decimal part still counts as time.
<span>Which shows the elements of the set of whole number multiples of four less than 21?
The multiples of 4 are 4, 8, 12, 16, 20, 24, 28,...
Then, the set of the multiples of four less than 21 is {4, 8, 12, 16, 20}
A: {1, 2, 3, 4, 5}
B: {4, 8, 12, 16, 20}
C: all real numbers
D: null set
Which shows the set(s) the number 2.77 is an element of?
2.77 is a real number, it is not a natural number, and it is not a whole number.
A: real numbers
B: real numbers and natural numbers
C: natural numbers and whole numbers
D: null set
Given sets:
D = {5, 6, 7, 8, 9, 10}, E = {1, 3, 5, 7, 9, 11}, F = {3, 6, 9, 12}
What is D n E?
I believe the question is what is D ∩ E, which is the elements that are as much in D as in E. This is {5,7,9}
A: {1, 3, 5, 6, 7, 8, 9, 10, 11}
B: {5, 7, 9}
C: {9}
D: null set</span>