There are a huge number of different fractions that are equal to 35.
Here are a few of them:
70/2 105/3 140/4 175/5 210/6
Any of these can be simplified.
In simplest form, the fraction is 35/1 .
Answer:
The correct answer is:
(a) Mean = 170,
Standard deviation = 30
(b) 1700
Step-by-step explanation:
Given:
(a)
Mean of monthly expenses will be:
=
=
=
Standard deviation will be:
=
=
=
(b)
The total amount of monthly expenses will be:
=
=
=
Step-by-step explanation:
Confidence interval = mean ± margin of error
CI = μ ± ME
The mean is μ = 8.7.
Margin of error = critical value × standard error
ME = CV × SE
At 95% confidence and 9 degrees of freedom, CV = 2.262.
SE = s / √n
SE = 3.3 / √10
SE = 1.04
The margin of error is:
ME = 2.262 × 1.04
ME = 2.36
CI = 8.7 ± 2.36
CI = (6.34, 11.06)
............................. ;)
Regular decagon is a closed shaped polygon witch has ten sides.In a regular decagon all ten sides are equal. The area of the given regular decagon is near 663.1 squared units. Thus the option 3 is the correct option.
<h3>
Given information;</h3>
The radius of a regular decagon is 15 units.
The length of one side of the polygon measures about 9.3 units.
<h3>Regular Decagon</h3>
Regular decagon is a closed shaped polygon witch has ten sides.In a regular decagon all ten sides are equal.
The area of the regular decagon with side can be given as,
Thus the area of the regular decagon having the the side length equal to the 9.3 units is,
Thus the area of the regular decagon having the the side length equal to the 9.3 units is 665.47 squared units..
The area of the regular decagon is in decimal form. When 665.47 is rounded to the nearest tenth the value is 670 squared units.
Hence the area of the given regular decagon is near 663.1 squared units. Thus the option 3 is the correct option.
Learn more about the regular decagon here;
brainly.com/question/345635