You're ordering a one-topping pizza. You can choose from 3 different toppings and 2 types of crust. If you randomly pick the top
2 answers:
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Answer:
A
Step-by-step explanation:
The profit for selling <em>x</em> pairs of shoes is given by:
And we want to determine the number of pairs that needs to be sold in order to maximize profit.
Since the function is a quadratic with a negative leading coefficient, the maximum profit will occur at its vertex point. The <em>x-</em>coordinate of the vertex of a quadratic is given by:
In this case, <em>a</em> = -4, <em>b</em> = 32, and <em>c</em> = -39. Substitute and evaluate:
So, in order to maximize profit, only four pairs of sohoes should be sold.
Our answer is A.
It's the slope of the secant line to <em>f(x)</em> through the points (-3, <em>f</em> (-3)) and (9, <em>f</em> (9)),
Using the t-distribution, it is found that the 99% confidence interval for the difference is (0.058, 3.462).
We are given the <u>standard deviation for the samples</u>, hence, the t-distribution is used to solve this question.
The standard errors are given by:
For the distribution of differences, the <u>mean and the standard error</u> are given by:
The interval is given by:
The critical value for a <u>two-tailed 99% confidence interval</u> with 18 + 18 - 2 = <u>34 df</u> is t = 2.7284.
Then:
The 99% confidence interval for the difference is (0.058, 3.462).
For more on the t-distribution, you can check brainly.com/question/16162795