Answer:
Margin of error = E = 40
Step-by-step explanation:
Assuming 99% confidence level
Given that x = 253.9
s.d = 63.6
n = 18
Degrees of freedom = df = n - 1 = 18 - 1 = 17
At 99% confidence level the t is, α = 1 - 99% = 1 - 0.99 = 0.01
α/2 = 0.01 / 2 = 0.005
t α/2,df = t,0.005 = = 2.680 (using student t table)
Margin of error = E = t α/2,df * (s.d/√n)
Margin of error = 2.680*63.6/√18
Margin of error = 2.680*63.6/4.242641
Margin of error = 2.680*14.99066265564303
Margin of error = 40.17
Margin of error = E = 40
The parent function is f(x)=x^2
Your function has been shifted from that equation.
The parabola is facing downward and is shifted up 5 units on the y axis.
Answer:
X is greater than -2.
Step-by-step explanation:
This means that X is greater than -2. Anything like -1 and above to the positives is considered greater than -2.
-1 > -2 because the closer the negative number is to zero, means its greater. The farther it is lesser.
-2 is less than -1. -1 is greater than -2.
If I said -3 is greater than -2 or -3 > -2, then I would be wrong. -2 is greater than -3, but -1 is greater than -2.
I hope I helped you.
Easily substitute with h=0 is the limit function:
(-5 + 0)^2 -25(0) = 25 -0 = 25
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