Answer:
it is 4
Step-by-step explanation:
dxgfchv
Using the vertex of a quadratic function, it is found that:
a) The revenue is maximized with 336 units.
b) The maximum revenue is of $56,448.
<h3>What is the vertex of a quadratic equation?</h3>
A quadratic equation is modeled by:

The vertex is given by:

In which:
Considering the coefficient a, we have that:
- If a < 0, the vertex is a maximum point.
- If a > 0, the vertex is a minimum point.
The demand function is given by:
p(x) = 336 - 0.5x.
Hence, the revenue function is:
R(x) = xp(x)
R(x) = -0.5x² + 336x.
Which has coefficients a = -0.5, b = 336.
Hence, the value of x that maximizes the revenue, and the maximum revenue, are given, respectively, as follows:
More can be learned about the vertex of a quadratic function at brainly.com/question/24737967
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Answer: 88 dollars
Step-by-step explanation: We will follow the pattern of 2s, so 2 4 6 8 10 12 14 16 is how much she saved over the course of all 8 weeks. 2 plus 4 equals 6. 6 plus 8 equals 14. 10 plus 12 is 22. 14 plus 16 is 30. 6 plus 14 is 30 and 22 plus 36 is 58. Last of all, 58 plus 30 is 88
Answer:
1. k=2
2. b=2f
3. 68
Explanation
1. y=kx (replace x&y with 2 values)
12=k(6) (isolate k)
/6 /6
2=k *check with another value to see if k truly is 2
2. since the constant of variation is 2, we can see that 2x the number of flowers make up the birds. so...
b(birds/y-value)=2(constant)f(number of flowers)
b=2f
3. input 34 into f, since there are 34 flowers
b=2*34 (use mental math)
b=68
in other words, there will be 68 birds.
Answer:
The upper confidence limit of a 92% confidence interval for the population mean of grade point average is 2.93.
Step-by-step explanation:
We have that to find our
level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of
.
So it is z with a pvalue of
, so 
Now, find the margin of error M as such

In which
is the standard deviation of the population and n is the size of the sample.

The upper end of the interval is the sample mean added to M. So it is 2.89 + 0.04 = 2.93.
The upper confidence limit of a 92% confidence interval for the population mean of grade point average is 2.93.