We must assume the wall of the building is vertical. The hypotenuse of this right triangle is represented by the ladder, 32 feet. So we wish to find the bottom of the triangle, the distance between the wall and ground. From the infamous Pythagorean theorem, the sum of the squares of the sides equals the square of the hypotenuse.
Taking the difference, 32² - 23² = 1024 - 529 = 495. What is the square root of 495? It is 22.2 feet. I would move the ladder closer or get a shorter ladder--that does not seem stable.
Answer:
We have not write the question properly . so I write the point .
Problem 1: Plug in the given value into the function and evaluate.
Problem 2: Solve the equation for y.
add 7x to both sides to move it to the right side of the equation.
Divide both sides of the equation by 2 to get a single y variable on the left hand side.
Simplify the terms to get the the equation into slope-intercept form.
The slope of the line is
I'm a unsure what Problem 3 is asking for sorry I hope the rest is helpful.
A + b = 8
a - b = -4
a = b - 4
(b - 4) + b = 8
2b - 4 = 8
2b = 12
b = 6
a + 6 = 8
a = 2
a = 2
b = 6
2 + 6 = 8
2 - 6 = -4
The confidence interval would be wider so that you can be more confident that the parameter you're measuring (eg: population mean mu) is inside the confidence interval.
It's like saying "the treasure is somewhere in the country" which is fairly vague but could be true. To be more confident, you can update it to "the treasure is somewhere on the continent". It's even more vague but it increases the chances of being correct.