Answer: The first thing we need to do is find the slope--the rise over run. We can find it by using the formula:
(y2 - y1) / (x2 - x1), that is we subtract the x an y values of our two points and then divide:
(-4 - -10) / (9 - 9)
(-4 + 10) / (9 - 9)
6 / 0
We cannot divide by 0. Our slope is essentially infinity, or a straight line up and down. This means we take a look at the x-coordinate: 9. This means our equation is:
x = 9
because no matter what we use for y, x will always stay at 9
Step-by-step explanation:
also you pfp is cute as hell girl!
Answer:
And the 95% confidence interval would be given (0.432;0.630).
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The population proportion have the following distribution
Solution to the problem
The estimated proportion for this case is:
The confidence interval would be given by this formula
For the 95% confidence interval the value of and , with that value we can find the quantile required for the interval in the normal standard distribution.
And replacing into the confidence interval formula we got:
And the 95% confidence interval would be given (0.432;0.630).
65*1.60=$104
Hope that helps
You’re going to want to use the pythagorean theorem (a^2+b^2=c^2). Start with what you know your hypotenuse is 53 ft (c) and one of your sides is 45 ft (a). Plug in the equation: (45^2+b^2=53^2). Next square each side: (2025+b^2=2809). Then: (b^2=784). Finally square root: (b=28) So your answer is x=28 ft.
Answer:
h = -0.0166t^2 + 30.
Step-by-step explanation:
The graph of the flight is a parabola which opens down and is symmetrical about the y axis, passes through the x axis at -42.5 and 42.5 and has a vertex at (0, 30).
So we have -a(t^2) + 30 = 0 where t is the time
(42.5)^2 * -a = -30 (42.5 as its 1/2 * 85).
a = 30/2806.25
= 0.01661
So the equation is height h = -0.0166t^2 + 30