Answer:
You need to give us the answer choices
-2*4=-8
-8 is the correct answer
I think that the answer is 3Y+30. I hope this helps!!! :)
Answer:
b. 2.28%.
Step-by-step explanation:
Mean temperatue (μ) = 1000°F
Standard Deviation (σ) = 50
°F
For any temperature value, X, the z-score is given by:
For X= 900°F

A z-score of -2.0 corresponds to the 2.28-th percentile of a normal distribution. Therefore, the probability that X<900 is:
