Super fast worth alot of points
the ages of alligators in a swamp are normally distributed, with a mean of 50 years and a standard deviation of 4. approximately what percentage of the alligators are between 45 and 55 years old?
78.87%
10.56%
89.44%
67.76%
question 2(multiple choice worth 3 points)
(05.03 lc)
wait times at an orthodontist's office are typically 17 minutes, with a standard deviation of 2 minutes. what percentage of people should be seen by the doctor between 11 and 23 minutes for this to be considered a normal distribution?
17%
68%
95%
99.7%

1 is c

2 is a

3 is a

step-by-step explanation:

25 questions , because they start with 100.  

350-100=250 .  

. 250/10=25

step-by-step explanation:

first take off 100, then what x 10 = 250? that is your answer. (25)

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

6e14 is the answer.