What is the domain and range of the step function with the equation below? f(x) = -3[ x ]
2 answers:
Answer:
Option C.
Step-by-step explanation:
The given function is
We need to find the domain and range of the given step function.
is least integer function. The output of this function is all integers and it is defined for all values of x.
The given function is 3 times of least integer function. So, the given function f(x) is defined for all real number and outputs of the function are all integers that are multiples of 3.
Domain of f(x) = All real numbers = (-∞,∞)
Range of f(x) = All integers that are multiples of 3.
Therefore, the correct option is C.
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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
Answer:
The value of 'x' is 31 unit
Step-by-step explanation:
Given:
Measure of each side =
Perimeter of sails = 63 units.
We need to find the value of x.
Solution:
Now we can see that from given data.
A sailboat's Saul has three sides.
Now assuming it to be triangle we get;
"Perimeter of triangle is equal to sum of all side."
So we can say that;
Now adding both side by 30 we get;
Now dividing both side by 3 we get;
Hence the value of 'x' is 31 units.