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11111nata11111 [884]
2 years ago
7

What’s variance and how do I figure it oit

Mathematics
1 answer:
Andreas93 [3]2 years ago
5 0
<h2>Answer:</h2>

variance measures variability from the average or mean. It is calculated by taking the differences between each number in the data set and the mean.','.

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What is the solution to the system of equations shown on the graph?
Dmitry_Shevchenko [17]
The solution is (-1,-3), it is where the two lines meet.
7 0
3 years ago
Work out the sizes of each unknown exterior angle in this polygon
goldenfox [79]

Answer:

see explanation

Step-by-step explanation:

The sum of the exterior angles of a polygon = 360°

The exterior angle to interior angle is

exterior angle = 180° - 110° = 70°

Sum the exterior angles and equate to 360

x + 2x + 70 + 2x - 50 + x + 40 = 360 , that is

6x + 60 = 360 ( subtract 60 from both sides )

6x = 300 ( divide both sides by 6 )

x = 50

Then measure of exterior angles is

x = 50°

2x = 2 × 50 = 100°

x + 40 = 50 + 40 = 90°

2x - 50 = 2(50) - 50 = 100 - 50 = 50°

6 0
3 years ago
State the domain and range of each relation.
adelina 88 [10]

Answer:

Yes It is function.

Step-by-step explanation:

Domain= { 3,4,6 }

Range = { 5 }

6 0
2 years ago
Mercury is the closet planet to the Sun at a distance of 36 million miles. The closest star to the Sun is Proxima Centauri, whic
const2013 [10]
So, if you are trying to convert lightyears to miles, you'll do so with this formula:
mi= (ly)* 5.9e^12, or 59,000,000,000,000. so it would be:
miles=(4.24)(5.9e^12)= roughly 2.5e^13   so Proxima Centauri is   250,000,000,000,000 miles from the Sun
To convert miles to lightyears, you'll just switch them around:
lightyears= (3.6e^6) / (5.9e^12)
Mercury is roughly 0.000006123880 lightyears from the Sun
6 0
3 years ago
An airplane flew for 8 hours at an airspeed of x miles per hour (mph), and for 7 more hours at 325 mph. If the average airspeed
Thepotemich [5.8K]
E. 8x+7(325)=15(325)

It would include the 8 hrs. of x miles per hour and the 7 hrs. of 325 miles per hour, giving the total miles. Then, as you eliminate, you can find out what (x) is.
4 0
3 years ago
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