Answer:
Domain: all real numbers
The interval on which the function is increasing is : (0 , infinity)
The interval on which the function is decreasing is : (-infinity , 0)
The interval on which the function is constant is : ( 0,0 )
Step-by-step explanation:
f(r)=5r^2−4
This is a quadratic function.
vertex at (0, -4) and with positive coefficient for r^2
The interval on which the function is increasing is : (0 , infinity)
The interval on which the function is decreasing is : (-infinity , 0)
The interval on which the function is constant is : ( 0,0 )
Answer:
80 feet
Step-by-step explanation:
c=d
Substitute 250 in for circumference
250=d
Divide by or 3.14
d=79.617...
So, the diameter is approximately 80 feet
Hope this helps! :)
Answer:
1/4*(d-2) . I really hope this helps you. :)
The mileage that the supervisor will achieve that is within a z-score of 1.5 is; 23.6
<h3>How to find the z-score? </h3>
Formula for z-score in statistics is;
z = (x' - μ)/s
Where;
x' is sample mean
μ is population mean
s is sample standard deviation
We are given;
x' = 29
Standard deviation; s = 3.6
z = 1.5
Thus;
1.5 = (29 - μ)/3.6
μ = 29 - (1.5 × 3.6)
μ = 23.6
Read more about z-score at; brainly.com/question/25638875
