Answer:
dV(t)/dt = kV(t)
Step-by-step explanation:
Since the rate of change of the car’s value in dollars per year dV(t)/dt is proportional to the car’s value V(t), ten
dV(t)/dt ∝ V(t)
dV(t)/dt = kV(t)
Answer:90
Step-by-step explanation:
Multiply by 10
Answer:22
Step-by-step explanation: since f(8) so x=8
substitiuting x in 2x+6
f(8)= 2x8+6=22
so f(8)=22
Hope this helps! :)
Answer:
X=12
Step-by-step explanation:
Khan Academy
Answer:
52.74% probability that a randomly selected airfare between these two cities will be between $325 and $425
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation , the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
What is the probability that a randomly selected airfare between these two cities will be between $325 and $425?
This is the pvalue of Z when X = 425 subtracted by the pvalue of Z when X = 325. So
X = 425
has a pvalue of 0.7088
X = 325
has a pvalue of 0.1814
0.7088 - 0.1814 = 0.5274
52.74% probability that a randomly selected airfare between these two cities will be between $325 and $425