Which relation describes a function? What makes it a function?
2 answers:
Answer:
D) {(-2,3),(-3,3),(-4,3)} Each member of the domain is assigned exactly one member of the range.
Step-by-step explanation:
A mathematical function is the relationship between one magnitude and another, when the value of the first depends on the second. In this way, every mathematical function consists of the relationship between an element of group A and another element of group B, provided that they are uniquely and exclusively linked. Therefore, this function can be expressed in algebraic terms as follows:
Hence, given a set A and a set B, a function is the association that occurs when each element of the set A (the domain) is assigned a single element of the set B (range).
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Estimate that 500 x 4 = 2,000
+ 50 x 4 = 200
+ 6 x 4= 24
so you can estimate somewhere between 2,000-2,224
To multiply:
Start with 6 x 4 which equals 24.
You can only put the last letter in the answer and carry the two over the second 5.
Next comes 5 x 4 + the 2 you carried, so 22.
Write down a two in the answer and carry the next two.
5 x 4 + 2 again is 22, this time, since there are no numbers left to carry the 2 over to, you're left with 2,224.
+ 50 x 4 = 200
+ 6 x 4= 24
so you can estimate somewhere between 2,000-2,224
To multiply:
Start with 6 x 4 which equals 24.
You can only put the last letter in the answer and carry the two over the second 5.
Next comes 5 x 4 + the 2 you carried, so 22.
Write down a two in the answer and carry the next two.
5 x 4 + 2 again is 22, this time, since there are no numbers left to carry the 2 over to, you're left with 2,224.
Answer:
The probability it will take a resident of the city between 17.24 and 42.13 minutes to travel to work is 0.3046.
Step-by-step explanation:
The random variable <em>X</em> can be defined as the travel times to get to work.
The expected travel time is, <em>μ</em> = 38.3 minutes.
The distribution of random variable <em>X</em> can be defined as the distribution of time interval between which a person reaches their work place at a constant average rate.
This implies that <em>X</em> follows an Exponential distribution with parameter, .
The probability density function of <em>X</em> is:
Compute the probability it will take a resident of the city between 17.24 and 42.13 minutes to travel to work as follows:
Thus, the probability it will take a resident of the city between 17.24 and 42.13 minutes to travel to work is 0.3046.