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arsen [322]
3 years ago
8

Judy pays $29 for 8 gallons of gas and 2 bottles of water.carmen pays $45 for 12 gallons of gas and 4 bottles of water. How much

does one gallon of gas? How much does one bottle of water cost?
Mathematics
1 answer:
denpristay [2]3 years ago
3 0
The gas cost 35 dollars and the water cost 15 dollars

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Given g(x)=-x-2, find g(3)
statuscvo [17]

Answer:

g(x) = - x-2, therefore g(3) = - 3-2, or in better terms, g(3) = -5

Step-by-step explanation:

7 0
3 years ago
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Exhibit 5-9 Forty percent of all registered voters in a national election are female. A random sample of 5 voters is selected. R
Vikentia [17]

Answer:

Let X the random variable of interest "number of registered voters" in a random sample of n =5, on this case we now that:  

X \sim Binom(n=5, p=0.4)  

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

So then the best answer for this cas would be:

b. the number of registered voters in the nation

Step-by-step explanation:

Previous concepts  

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".  

Solution to the problem

Let X the random variable of interest "number of registered voters" in a random sample of n =5, on this case we now that:  

X \sim Binom(n=5, p=0.4)  

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

So then the best answer for this cas would be:

b. the number of registered voters in the nation

8 0
4 years ago
Solve log (x + 1) = –x2 + 10 by graphing.
ss7ja [257]
If I am not wrong after graphing it the line should be vertical.. meaning that y=0 and it should be around 3.064
7 0
3 years ago
Read 2 more answers
Rafeal has been given a list of 5 bands and asked to place a vote. His vote must have the names of his favorite, second favorite
Fittoniya [83]

Answer:

60 different votes.

Step-by-step explanation:

This is a permutations question. There are a total of 5 bands to be voted for, and Rafeal has to vote only for 3 of the bands. It is also mentioned that the voting has to be done for the favorite, the second favorite, and the third favorite bands from the list. This means that the order of selection is important. This means that permutations will be used. Thus, 3 bands out of 5 have to be selected in an order. This implies:

5P3 = 5*4*3 = 60 possibilities.

There are 60 different votes!!!

6 0
4 years ago
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Write a function rule that represents the sentence. y is 8 less than the product of 7 and x.​
Bas_tet [7]

Answer:

f(x) = 7x - 8 or

y = 7x - 8

Step-by-step explanation:

Let x be the input and f(x) or y represent output.

The function in this case is given as firstly we will take seven times of the input and subtract eight to it, to obtain the required output.

y = 7x - 8\\or\\f(x) = 7x - 8

4 0
4 years ago
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