Answer:
There are 31 polygons in total used to make the tessellation and the ones that make number 17 up are:
Pentagons, triangles, and hexagons.
The ones that make up number 18 are:
Pentagons, squares, and triangles.
Step-by-step explanation:
Answer:
The number would be 16.
Step-by-step explanation:
If you have a specific number of apples, and then pluck 3 more, you have 19. So this can be modeled as 19-3, which gives you the original
Answer:
A sample size of 657 is needed.
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 zscore that has a pvalue of
.
The margin of error is:

95% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
In the past, 19% of all homes with a stay-at-home parent had the father as the stay-at-home parent.
This means that 
(a) What sample size is needed if the research firm's goal is to estimate the current proportion of homes with a stay-at-home parent in which the father is the stay-at-home parent with a margin of error of 0.03?
A sample size of n is needed.
n is found when 
Then






Rounding up to the nearest whole number.
A sample size of 657 is needed.
Step-by-step explanation:
A reflection followed by a translation