Answer:
x = 24, y = 15
Step-by-step explanation:
Find attached the step-by-step solution.
Standard error (SE)
![se= \frac{s}{ \sqrt{n} }](https://tex.z-dn.net/?f=se%3D%20%20%20%5Cfrac%7Bs%7D%7B%20%5Csqrt%7Bn%7D%20%7D%20)
Or
![se = \sqrt{ \frac{ {s}^{2} }{n} }](https://tex.z-dn.net/?f=se%20%3D%20%20%5Csqrt%7B%20%5Cfrac%7B%20%7Bs%7D%5E%7B2%7D%20%7D%7Bn%7D%20%7D%20)
Therefore, SE of the mean = (8)/(2) =4
Answer:
No, it is not a square
Step-by-step explanation:
If one wall is 19", that would mean the wall perpendicular to this wall is also 19" (in fact all of the walls would be 19"!) If this was a square, then the diagonal we draw at 20.62" would serve as the hypotenuse of a right triangle. One wall would serve as a leg, and another wall as another leg. If this is a square, then the Pythagorean's Theorem would be satisfied when we plug in the 2 wall measures for a and b, and the diagonal for c:
![19^2+19^2=20.62^2](https://tex.z-dn.net/?f=19%5E2%2B19%5E2%3D20.62%5E2)
We need to see if this is a true statement. If the left side equals the right side, then the 2 legs of the right triangle are the same length, and the room, then is a square.
361 + 361 = 425.1844
Is this true? Does 722 = 425.1844? Definitely not. That means that the room is not a square.
Answer:
-7/x
Step-by-step explanation:
first, you combine the terms together to get -7x^-1. you cant have negative exponents in the numerator so you move the x^-1 to the denominator. once it move its becomes positive then.