(4x2 + 7x - 4) + (x2 - 7x + 14)

Mathematics

1 answer:

fomenos3 years ago

5 0

Answer:

4+7x

Step-by-step explanation:

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In this graph, each day has its own graph, starting at the bottom with Monday, to the top at Sunday. To know how many hits each day had, go to the end of the graph, and the closest number at the bottom is how many hits there were. This graph states that there were around 1900 hits on Tuesday, and 1300 on Monday. To get the answer we then take the difference, getting 600.

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Read 2 more answers

"Each week, a subcommittee of four individuals is formed from among the members of a committee comprising seven individuals. Two

denis-greek [22]

Answer:

140 weeks.

Step-by-step explanation:

We are being asked for the maximum number that can elapse without having 2 subcommitees with the same members and the same chair. Notice that the secretary is not mentioned in this statement, so we can ignore that position.

Now, the maximum number of weeks would be equal to the total possible combinations of subcommitees that can be formed from the 7 individuals commiteed, times the number of options that can sit at the chair possition.

The total possible combinations of subcommitees that can be formed from the 7 individuals can be expressed like the following expression. Notice that there is no a particular order to be considered, so we use the combination formula:

$\left[\begin{array}{ccc}7\\4\end{array}\right]$ = $\frac{7!}{4!(7-4)!}$ = 35

Now, each of the 4 individuals have the same probability of being chosen as the chair commitee. So, we have to multiply 4 times the number of possible subcommitees in order to arrive our answer:

x = 35 * 4 = 140

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3 years ago

If f(x) = -x + 5 and g(x) = x^2, what is (g° (-1)?

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Answer:

$(g\circ f)(-1)=36$