Answer:
We are given:
Margin of error
Confidence level = 0.99
We need to find the sample size to estimate the proportion of people who carry the TAS2R388 gene.
The formula for finding the sample size is:
Where:
is the critical value at 0.01 significance level.
Therefore, the required sample size is:
Therefore, the required sample size is 3774
1. cbd
2. 40 degrees + 25 degrees =65 degrees
3. 70 degrees - 45 degrees =25 degrees
Answer:
This means the center is (-3,-8) and the radius is 9
Step-by-step explanation:
(x+3)^2 + (y+8)^2 = 81
The equation of a circle can be written as
(x-h)^2 + (y-k)^2 = r^2 where the center is (h,k) and the radius is r
We can rewrite the above equation as
(x- -3)^2 + (y - -8)^2 = 9^2
This means the center is (-3,-8) and the radius is 9
<span>
<span>Using
the information give, we can create two equations with two unknows as shown
below:
50U+20E=10680 and
U+E=280.
Where U represents Unlimited ride passes
and E represents Entrance-only passes. We can use the second equation to find
the value of U in relation to E. So that U is represented as U=282-E. We then
proceed to substitute E in the first equation using the value we assigned it
in relation to U so that we can have only one unknown value in the equation.
So 50U+20E=10680 becomes 50(282-E)+20E=10680. Simplifying this equation,
14100-50E+20E=10680. Putting the unknowns on one side we end up with
14100-10680=50E-20E. Solving for E, we end up with E=114. U can also be
calculated by substituting the already known value of E in the simpler
equation U=280-114. This means that the value of U is 168. So the number of
unlimited passes that were sold is 168</span></span>
Answer:
Step-by-step explanation:
Look at the picture.