A because 750 times 12 because there is 12 months in a year. You get 9000
Answer:
24
Step-by-step explanation:
78-30=48
48/2=24
each one is 24kg
Answer:
And rounded up we have that n=2663
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
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by
and
. And the critical value would be given by:
The margin of error for the proportion interval is given by this formula:
(a)
And on this case we have that
and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
We can assume an estimated proportion of
since we don't have prior info provided. And replacing into equation (b) the values from part a we got:
And rounded up we have that n=2663
False they don't have to be whole numbers. As long as they're greater than 0
We are given
total length of cable is 30 feet
and this cable is on hypotenuse sides of the triangles
so, we can draw triangle as
Let's assume those hypotenuse as 'a' and 'b'
so, we will have

now, we can find 'a' and 'b' from triangle
Smaller triangle:

Larger triangle:

we know that

so, we can plug this value
and we get

now, we can solve for x



now, we can use quadratic formula
we get


so,
The point should be located 4.510 feet , 9.627 feet from the smaller pole to use 30 feet cable............Answer