Answer: Standard deviation is 11.6
Step-by-step explanation:
Sample mean 52/4=13
X. X---x(bar). X---x(bar)^2
0. 0--13=-13. -13^2=169
14. 14--13=1. 1^2=1
28. 28--13=15. 15^2=225
10. 10--13=--3. --3^2=9
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52. 404
Standard deviation=√404/3=11.6
On solving the linear equation, There are in total 24 unshaded squares and 16 shaded squares.
<h3>What is a linear equation?</h3>
Ax+By=C is the usual form for two-variable linear equations. A typical form linear equation is, for instance, 2x+3y=5. When an equation is provided in this format, finding both intercepts is rather simple (x and y).
squares, where x= number of squares
2x = shaded squares
Number of unshaded squares = 3x.
This is due to the fact that there are 3 times as many unshaded squares as there are shaded squares (2 times more unshaded = 3*). (shaded)
Overall, there are 40 squares (5 * 8), therefore 40 total squares—shaded and unshaded—are present.
2x+3x = 40
5x = 40
x = 40/5
x = 8
There are 3×8 = 24 unshaded squares
8×2 = 16 shaded squares in all.
Therefore, you may shade in 8 squares whatever you choose.
To learn more about linear equation from given link
brainly.com/question/2030026
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Answer:
x/2
Step-by-step explanation:
Answer:
Hello! answer: 9
Step-by-step explanation:
Assuming this is a complementary angle (meaning it will add up to 90 degrees)
5 × 9 = 45 45 + 15 = 60 60 + 30 = 90 therefore x = 9 Hope that helps!
