9x3=27 or 27=9x3 well its both
<u>Answer-</u>
<em>In </em><em>25.15%</em><em> cases their response times is over 30 minutes.</em>
<u>Solution-</u>
Hint- Calculating the z-score (how much standard deviations away from the mean) and then getting the corresponding probability value from normal distribution table we can get solution.
Applying the formula for Z-score,

Here,
X = score = 30,
μ = mean = 22,
σ = standard deviation = 11.9
Putting the values,


(Subtracted from 1 as the values of area to the left of the Z score is given in table, but we need the area right to Z score as response times more than 30 minutes is asked)
Dude where are the triangles
Answer:
I think it is C but I'm not completely sure about the answer
Step-by-step explanation:
Answer:
C. x + y = 743
x – y = 75
Step-by-step explanation:
Got it right.