no, they have different variables
Hello from MrBillDoesMath!
Answer: 30
Discussion:
The area of a circle of radius R is given by the formula
Pi * R^2
We are given that the area is 225 Pi (Not 255 Pi as stated by the author)
Pi * R^2 = 225 * Pi
Divide both sides by Pi :
R^2 = 225 ---> R = 15
The diameter is twice the radius so the diameter = 30.
Regards, MrB
Answer:
w = 1.6
Step-by-step explanation:
Given w varies inversely as 
then the equation relating them is
w = 
← k is the constant of variation
To find k use the condition when x = 4, w = 4
k = w = 4 × 
= 4 × 2 = 8
w = 
← equation of variation
When x = 25, then
w = 
= 
= 1.6
Answer:
x < 3
Step-by-step explanation:
4x - 7 <5
4x < 12
x < 3
Answer:
Mean: For this case would be not useful since in the stem leaf plot is difficult to find this measure with this chart
Step-by-step explanation:
We want construct a stem and leaf plot and we want to find the measure least useful.
And for this case if we analyze the option we have:
Range: That very useful and it can be extracted from the stem and leaf plot
Median: It could be easy to find it with the stem leaf plot
Mode: With a stem leaf plot we can find easily the most repeated value
Mean: For this case would be not useful since in the stem leaf plot is difficult to find this measure with this chart
