Answer:
the answer is 55 which its B
because you multiplay 22%of 250
you first have to move the decimal two times
like this .22 now you multiplay
.22×250=you will get 5500 but remember you plug in the decimal and move it two time
which it is 55.00 so its 55
Answer:
(x+1)² + y² = 36
Step-by-step explanation:
<u>Equation of a circle:</u>
(x-h)² + (y-k)² = r²
Center: (h,k)
Radius: r
Given a center of (-1,0) and a radius of 6, we have for our equation:
(x-(-1))² + (y-0)² = 6²
(x+1)² + y² = 36
Answer:
Step-by-step explanation:
Given
monthly
Required
Write an expression to determine the number of months
The total can be expressed using:
Substitute value for each term
Hence:
Option F answers the question
Answer:
Yes
Step-by-step explanation:
First, suppose that nothing has changed, and possibility p is still 0.56. It's our null hypothesis. Now, we've got Bernoulli distribution, but 30 is big enough to consider Gaussian distribution instead.
It has mean μ= np = 30×0.56=16.8
standard deviation s = √npq
sqrt(30×0.56×(1-0.56)) = 2.71
So 21 is (21-16.8)/2.71 = 1.5494 standard deviations above the mean. So the level increased with a ˜ 0.005 level of significance, and there is sufficient evidence.
But what is the expression, you have to tell me so I can do it.
