Yes, because similar means same shape same angles different size!!
[67.9 %, 82.1 %] is the 95% confidence interval for the proportion of test-takers answering the question correctly. So we have [67.9 %, 82.1 %] In a random sample of 144 test-takers with 75% answered the question correctly. So the answer in this question is [67.9 %, 82.1 %].
Answer:
The equation in the slope-intercept form will be:
Step-by-step explanation:
Given the points
Finding the slope between the points using the formula
We know that the point-slope of the line equation is
substituting and (-39,49) in the equation
Now writing the equation in slope-intercept form
where m is the slope and b is the y-intercept
∵
Where
and the y-intercept i.e. 
Therefore, the equation in the slope-intercept form will be:
Using the Pythagorean theorem:
a^2 + b^2 = c^2
a and b are the sides and c is the hypotenuse.
The length of the ladder would be the hypotenuse and the base away from the wall would be one side.
So now we have:
5.5^2 + b^2 = 9^2
Simplify:
30.25 + b^2 = 81
Subtract 30.25 from each side:
b^2 = 81 - 30.25
b^2 = 50.75
Take the square root of both sides:
b = √50.75
b = 7.123
Rounded to the nearest tenth of a foot = 7.1 feet.
