Answer:
Step-by-step explanation:
To find the population variance, we first need the mean:
so the mean is 7.2. To find the population variance (which is almost exactly the same as the sample variance except for a small difference in the denominators of the formula) we have to take each number minus the mean, and then square the difference. Add together all these squared numbers and then divide by the number of numbers. Like this:
Add together those numbers and divide them by 5:
1.QUAD is an isosceles trapezoid 1. Given
2. QD = UA 2. Opposite legs of an isosceles trapezoid are equal
3. QU = QU 3. Reflexive
4. QA = UD 4. Diagonals of an isosceles trapezoid are equal.
5. ΔUAQ = ΔQDU 5. SSS
6. ∠UAQ = ∠QDU 6. CPCTE
Hey there!
Since 2 goes into 8, you would simplify. You would get 1 inch and 4 miles. Next, set up a ratio. The ratio is 1 inch: 4 miles. So for every inch on the map, there is 4 miles.
I hope this helps!
Answer:
No, this is not a right triangle
Step-by-step explanation:
