Answer:
The 98% confidence interval for the difference of the mean amount of June precipitation in Michigan cities and Ohio cities is (-1.77, 0.29).
Step-by-step explanation:
The (1 - <em>α</em>)% confidence interval for the difference between two population mean is:
Compute the value of sample means and sample standard deviations from the provided data.
The critical value of <em>t</em> for 98% confidence level and (n - 1) = 4 degrees of freedom is:
Compute the 98% confidence interval for the difference of the mean amount of June precipitation in Michigan cities and Ohio cities as follows:
Thus, the 98% confidence interval for the difference of the mean amount of June precipitation in Michigan cities and Ohio cities is (-1.77, 0.29).
For #1 you're just plugging in the numbers that are in the parentheses for x.
For example:
f(2)
Take the given equation to plug in for x:
x^2-4x+5
(2)^2-4(2)+5
And from there you get the answer. Your final answer will look like this:
f(2)=? {the answer you got when you plugged in}
Answer:
i know
Step-by-step explanation:0.6
Answer:
Step-by-step explanation:
I've attached a pic, I used y for sin(theta) and x for cos(theta). Shows all steps. See image.
Step 1: use "factoring sum of cubes" to factor the numerator.
Step 2: in the trinomial, in the numerator, rearrange terms to use the sin^2 + cos^2 = 1 .
Step 3: cancel that factor with the denominator.
Answer:
x = 10
Step-by-step explanation:
Since the lines are parallel, the 2 angles are corresponding and congruent, that is
7x - 1 = 5x + 19 ( subtract 5x from both sides )
2x - 1 = 19 ( add 1 to both sides )
2x = 20 ( divide both sides by 2 )
x = 10