Answer:
Step-by-step explanation:
In order to do f(g(4)), we need to find what g(4) is in order to input it into the function f(x).
g(4) = 2(4) = 8
Now do f(8) because that's the value of g(4)
f(8) = 3(8^2) - 3(8) + 6 = 174
The Confidence interval for 95% who believes that the local businesses overcharge = (0.7026, 0.7574)
<h3>
What is meant by confidence interval?</h3>
The range of values we see in our sample and hope to identify the value that most closely represents the population are referred to as a confidence interval.
<h3>According to the given information:</h3>
Sample size n = 1000
73% of town residents believed that local businesses overcharged for their products over 1000 resident.
= (1000/100) x 73
= 730
Sample proportion p = 730/1000
= .73
q = 1-p = 0.23
Std error of proportion = √(pq/n)
= √((.73*0.27)/1000)
= 0.0140
95% Z critical value = 1.96
Margin of error = 1.96*0.0140
= 0.0274
Confidence interval = sample proportion ±margin of error
(0.7026, 0.7574)
To know more About Confidence interval visit:
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Answer:
7 cm
Step-by-step explanation:
The formula for finding the area of a square is A = a^2 (where a is the side length).
So let's substitute the given values in.
49 = a^2
a = sqrt(49)
a = 7 cm <--- This is our answer
Hope this helps!
9514 1404 393
Answer:
C. 39°
Step-by-step explanation:
The measure of the angle where the chords cross is the average of the measures of the subtended arcs.
x = (AB +CD)/2 = (28° +50°)/2 = 78°/2
x = 39°
