The average rate of change is 5 because whatever is in front of the x is the rate of change. hope this help
Answer:
-1
Step-by-step explanation:
Simply plug in (-1) to both equations and add.
Equation 1:
2(-1)^2 = 2
3(-1) = -3
2 + -3 - 1 = -2
Equation 2:
-( - 1) = 1
Add both together:
-2 + 1 = -1
Answer:
A) 0.0107
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean
and standard deviation
, the z-score of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 440 seconds and a standard deviation of 40 seconds.
This means that 
Find the probability that a randomly selected boy in secondary school can run the mile in less than 348 seconds.
This is the p-value of Z when X = 348. So



has a p-value of 0.0107, and thus, the correct answer is given by option A.
Answer:
one thousandnths, sorry i cant rlly spell it
Step-by-step explanation:
9 people because you subtract 50 from 100 then divide 50 divided bt 5.50. its not a flat out number so you have to round down to 9.