The answer is A. 14 and 15
Substitute C for 15 then divide 2(pi). (pi)= 3.14
15 / 2(3.14)
15 / 6.28
r = 2.39
I hope this helped love!!
Answer:
9
Step-by-step explanation:
5(9)^4+30(9)^2+9=35244
3^9=19683
35244>19683
Answer:
Step-by-step explanation:
This fraction represents the area under the standard normal curve between 60 and 65 points. This represents the area from the mean (60) to one standard deviation above the mean (65). The applicable z-score is
65 - 60
z = --------------- = 1.
5
The problem then involves finding the area under the curve from z = 0 (that is, the mean) to z = 1 (one standard deviation above the mean).
Refer to the "empirical rule." This rule states that 68% of data lies within one standard deviation of the mean, that is, within z = -1 and z = 1. We are interested only in the area that is within z = 0 and z = 1, which is half of 68%, and thus is 34%.
In summary, approx. 34% of students have scored between 60 and 65 points.
Answer:
-5/3
Step-by-step explanation:
lmk if you want an explanation
