Hi there! :)
Find the central angle using a ratio in regards to angle and circumference.
The radius is 27 units, so use the following equation to calculate circumference:
C = 2rπ
Therefore:
C = 2(27)π = 54π
Since we have the total circumference, we can write the following proportion:
Cross multiply:
54πx = 6480π
Divide both sides by 54π to isolate for x:
x = 120°
$ 3.50 per lb * 1 1/2 lbs
3.50 per lb * 1.5 lbs = 5.25
It will cost $5.25
Answer:
C. 194
Step-by-step explanation:
An integer can be a positive or negative whole number, but not a decimal. If this number is an integer, then it is also a rational number. So, 194 fits this description.
Maybe this image can help you.
Answer:
14n-29
Step-by-step explanation:
Remove the unnecessary parenthesis around the (2n-9)
(2n-9)-5(-2.4n+4)
Distribute the -5 into the -2.4n+4
2n-9-5(2.4n+4)
2n-9+12n-20
Combine like terms
2n-9+12n-20
14n-9-20
14n-29
