Answer:
what we solving for???? ill answer in the comments
Step-by-step explanation:
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:
y= 3x - 15
Step-by-step explanation:
parallel lines have the same slope, but different y intercepts
Mixed # x denominator + numerator = imp. Fraction
28 x 14 = 392 + 11 = 203
203/14 = 29/2 = 14.5
9514 1404 393
Answer:
n(m(3)) = 7
Step-by-step explanation:
n(m(3)) = n(2·3 -5) = n(1) = 2·1 +5
n(m(3)) = 7