Step-by-step explanation:
Step 1: Set up the formula for the surface area of a regular pyramid.
SA =
where :
- SA equals the total surface area of the pyramid,
- p equals the perimeter of the base,
- h equals the slant height of the pyramid
- B equals the area of the base.
Step 2: Plug the perimeter of the base into the formula
you can calculate the perimeter by multiplying the length of one edge by the number of edges.
Step 3: plug the value of the slant height into the formula (it is not the perpendicular height)
Step 4: find the area of the base (depend on the shape of the base)
Hope it will find you well.
Answer: a. confidence level.
Step-by-step explanation:
Given : A newspaper provided a "snapshot" illustrating poll results from 1910 professionals who interview job applicants.
i.e. Sample size : n= 1910
The illustration showed that 26% of them said the biggest interview turnoff is that the applicant did not make an effort to learn about the job or the company.
The point estimate of the proportion of job applicants said the biggest interview turnoff is that the applicant did not make an effort to learn about the job or the company = p=0.26
[Note : The point estimate of the population proportion is basically the sample proportion.]
The margin of error was given as plus or minus 3 ±3 percentage points.
But confidence level is necessary to describe the margin of error .
A confidence interval tells how sure you are about the margin of error .
Thus , the important feature of the poll was omitted = confidence level
Answer:
120
Step-by-step explanation:
720 ÷ 6 = 120
Answer:
16 + sqrt(128)
Step-by-step explanation:
find the lengths of all 3 sides:
the side from (-9,8) to (-9,16) will be 16-8=8 (x stays constant)
The side from (-9,8) to (-17,8) is 8 (-9- (-17)=8)
The side from (-9,16) to (-17,8) will be found from the distance formula
d=sqrt((-17-9)^2 + (8-16)^2))
= sqrt(128)
So the perimeter will be these 3 numbers added together
P=sqrt(128) + 8 + 8
= 16 + sqrt(128)
which can simplify to:
= 16 + 4sqrt(8)
= 16 + 8sqrt(2) = 8+ sqrt(2)
The ratio of x:y:z = 20:8:11
Total unit = 20+8+11 = 39
Value of 1 unit ratio = 78/39 = 2
So, the water in container X, 20(2) = 40 liters
Your answer is 40 liters