Answer:
A. n = 5
Step-by-step explanation:
S = n² + n
When S = 30:
n² + n = 30
Subtract 30 from both sides: n² + n - 30 = 0
Factorize: (n - 5)(n + 6) = 0
Therefore n = 5 or -6
As n > 2, then n = 5 only
The formula is 180(n-2)= 1140 then you divide 1140 by 180 to get 8 so then it would like like n-2=8 add the 2 over and n (being the number of sides)= 10 so your answer will be 10
Answer:
y=-2/3x+9
Step-by-step explanation:
Use point-slope formula:
y-y1 = m(x-x1)
y-5=-2/3(x-6)
y-5=-2/3x+4
y=-2/3x+9
You would then proceed to graphing this equation, as it is in slope intercept form now.
HTH :)
Answer: 7/2 , 3/2
Step-by-step explanation:
D the sample mean would less closely model the population mean
