Volume for a pyramid is 1/3 π r² h. I haven't ever seen a B in it, could you tell me what your formula is?
Answer:
x+4y=8 is the correct answer
Step-by-step explanation:
Answer:
Option c:
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the z-score that has a p-value of .
For this problem, we have that:
You have access to first year enrolment records and you decide to randomly sample 119 of those records. You find that 89 of those sampled went on to complete their degree. This means that .
90% confidence level
So , z is the value of Z that has a p-value of , so .
Sample of 90 people with a sample proportion of 0.25
This means that .
Confidence interval:
Which is option c.
substitution and elimination means that you need to use one equation and substitute it in place of some variable in the other equation.
Consider the above two equations.
Take equation 1, which is 4x-2y=22 => x=(22+2y)/4
substitute the x value gained above in equation 2.
so, 2((22+2y)/4)+4y=6
22+2y+8y=12 => 10y = -10 => y= -1.
Substitute y= -1 in x value obtained in the beginning.
So, x= (22 - 2)/4 => 5.
There fore, x= 5 and y= -1
Hope it helps.
It is related to the distributive property because you could show the distributive property by using the areas of rectangles.