The answer is 4. Just put the value of -2 into this equation and get the y value.
A standard deviation of 0 means that nothing deviates, in other words all observations are 40. So 40 is the smallest, the largest, all of that!
A(1, 1), B(7, 1), C(1, 9)
AB = 7 - 1 = 6
AC = 9 - 1 = 8
Use the Pythagorean theorem:
AB² + AC² = BC²
Substitute:
BC² = 6² + 8²
BC² = 36 + 64
BC² = 100 → BC = √100 → BC = 10
The perimeter of ΔABC:
P = 6 + 8 + 10 = 24
<h3>Answer: 24 units</h3>