I believe the answer is 1,3,5,15
Answer:
None, but the answer is <em><u>1</u></em><em><u> </u></em><em><u>metre</u></em><em><u>.</u></em>
Step-by-step explanation:
<em>7</em><em>0</em><em> </em><em>c</em><em>m</em><em> </em><em>=</em><em> </em><em>7</em><em>0</em><em>0</em><em> </em><em>m</em><em>m</em>
<em>7</em><em>0</em><em>0</em><em> </em><em>d</em><em>m</em><em> </em><em>=</em><em> </em><em>7</em><em>0</em><em>,</em><em>0</em><em>0</em><em>0</em><em> </em><em>m</em><em>m</em>
<u><em>7</em><em> </em><em>m</em><em> </em><em>=</em><em> </em><em>7</em><em>0</em><em>0</em><em>0</em><em> </em><em>m</em><em>i</em><em>l</em><em>l</em><em>i</em><em>m</em><em>e</em><em>t</em><em>e</em><em>r</em><em>s</em></u>
Answer:
Step-by-step explanation:
Confidence interval for the difference in the two proportions is written as
Difference in sample proportions ± margin of error
Sample proportion, p= x/n
Where x = number of success
n = number of samples
For the men,
x = 318
n1 = 520
p1 = 318/520 = 0.61
For the women
x = 379
n2 = 460
p2 = 379/460 = 0.82
Margin of error = z√[p1(1 - p1)/n1 + p2(1 - p2)/n2]
To determine the z score, we subtract the confidence level from 100% to get α
α = 1 - 0.95 = 0.05
α/2 = 0.05/2 = 0.025
This is the area in each tail. Since we want the area in the middle, it becomes
1 - 0.025 = 0.975
The z score corresponding to the area on the z table is 1.96. Thus, confidence level of 95% is 1.96
Margin of error = 1.96 × √[0.61(1 - 0.61)/520 + 0.82(1 - 0.82)/460]
= 1.96 × √0.0004575 + 0.00032086957)
= 0.055
Confidence interval = 0.61 - 0.82 ± 0.055
= - 0.21 ± 0.055
Answer:
3,4,5 forms a right triangle
1,2 ,9 does not form a triangle
Step-by-step explanation:
Three side lengths that will form a triangle
3,4,5
This is a Pythagorean triple. It forms a right triangle
3^2 +4^2 = 5^2
9+16=25
25=25
Three side lengths that will not form a triangle
1,2 9
The sum of the two smaller sides must be greater then the third
1+2 < 9 not greater
Divide 4 to both sides of the equation
