Hello there!
To find the mean, we must add all of the numbers and then divide them by the amount of values you were given.
-4 + -3 + -1 + -1 + 0 + 1
Ths would really look like:
-4 - 3 - 1 - 1 + 0 + 1
This would be -8
There are a total of 6
So, we have to divide -8 by 6.
-8/6 = -3/2
So, the mean is -3/2
I hope I helped!
Let me know if you need anything else!
~ Zoe
I think it’s B angle 3 and 7. And D 4 and 7 angles!
Answer:
a) 28
Step-by-step explanation:
base: b
height: b
A = 1/2 (b · b) = 1/2(b²) = b²/2
sum is six less than area
b + b = 6 - ↔b²/2
2b = b²/2 - 6
4b = b² - 12 <em>multiplied by 2 to clear the denominator</em>
0 = b² - 4b - 12
0 = (b - 6)(b + 2)
0 = b - 6 0 = b + 2
b = 6 b = -2 (Negative so disregard)
A = b²/2 = (6)²/2 = 36/2 = 18
Answer: 18 units²
