Answer:
Aluno X
Step-by-step explanation:
A nota média para os alunos X e Y são, respectivamente:

A variância é definida pela seguinte expressão:

Onde n é o numero de termos, neste caso, n = 4.
As variâncias para cada aluno são:

O aluno X apresentou uma variância menor do que o aluno Y em suas notas e, portanto, apresentou ser o mais regular.
47.5 cause in the two total rotations, it was 95 so you would divided 95 by two and get 47.5.
Answer:
b)
Step-by-step explanation:
In every single other option, the y is not corresponding in amount to x. However in b), y is 6 times x, making b the correct answer as it is the only solution where y is directly corresponding to x
Answer:
y + 1 = -(x + 10)
Step-by-step explanation:
- Point-Slope Form: y - y1 = m(x - x1)
The given coordinate (-10, -1) are your (x1, y1), so:
All you have to do is substitute the given information into the formula:
- y -(-1) = -1(x -(-10)), which will simplify to y + 1 = -(x + 10)
Remember: Double negatives make a positive so if the given coordinates for (x1, y1) are negatives, they will be added to y or x in point-slope form, not subtracted.