Answer: C.-1.5
Step-by-step explanation:
Given: The burning time of a very large candle is normally distributed with mean of 2500 hours and standard deviation of 20 hours.
Let X be a random variable that represent the burning time of a very large candle.
Formula:
For X = 2470
So, the z-score they corresponds to a lifespan of 2470 hours. =-1.5
Hence, the correct option is C.-1.5.
Answer:
2
Step-by-step explanation:
Length of the pie = πD
Length of the pie = 10π
One slice = 10π ÷ 6 = 5.25 in (Answer C)
Answer:
horizontal line: y = 7
vertical line: x = 1
Step-by-step explanation: