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.
4 is the nearest integer
as a decimal this number would be 3.5, which would round up to 4.
Since it’s supplementary the straight line would equal to 180 degrees
4d - 1 + 105 = 180
4d + 104 = 180
4d = 76
d = 19
-12 because surface is usually considered as "0" so 12 ft below the surface means -12.
Answer:
I'm not sure, but I could kinda help
Step-by-step explanation:
to find the slope using a graph, using the formula :
I hope this helps
