Answer:
0.3114
Option d is right
Step-by-step explanation:
Let X be the time spent on a treadmill in the health club
Given that research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard deviation of 5.4 minutes
Also given that X is normal
the probability that randomly selected individual would spent between 30 and 40 minutes on the treadmill.
![= P(30](https://tex.z-dn.net/?f=%3D%20P%2830%3Cx%3C40%29%3D%20%5C%5CF%2840%29-F%2830%29%5C%5C%3D%200.3217-0.0103%5C%5C%3D0.3114)
round off to two decimals tog et
the probability that randomly selected individual would spent between 30 and 40 minutes on the treadmill is 0.31
Hence option d is right
The discriminant is b^2 -4ac
a = 1
b = -2
c = 4
discriminant = 4 -4 * 1 * 4 =
4 -16 =
-12
I get MINUS 12 as the answer but that isn't one of the choices.
Answer:
2. 1,3,5
Step-by-step explanation:
4 = 18.00
= 4.50
4.50 x 6 = 25.20
= 6.00
To find the slope between the points, you would go through this process
(-1-6)/(4-0)
And we get
(-7)/4
Aka
-(7/4) which is our slope
2 hours of computer time divide by 10 students:
2/10 = 1/5