Answer:
its 5
Step-by-step explanation:
it five bc look at the mesuarement
Given:Sample mean= 57
Standard Deviation= 9
score of 59
we go to our standard formula:
(score - mean) / sd = z
(59 - 57) / 9 = z
2/9 = z
0.2222 = z
Failing score cutoff would be equal to Mean - 2SD = 67 - 2(9) = 48 is failing score cutoff.
Answer:
7 3/5
Step-by-step explanation:

Answer:
X = - 5/3 or X = -1.6
Step-by-step explanation:
Move variable to the left hand side and change its sign
Collect like terms
Divide both sides of the equation by -3