Mathematics, 19.06.2020 21:57, Jasten
The table shows how the time it takes a train to
travel between two cities depends on its average
speed.
Which rational function models the time, y, in
hours, that it takes the train to travel between the
two cities at an average speed of x miles per hour?
DONE
Average Speed, x
(mph)
32
Time, y
(hr)
5
th
40
4
50
3.2
64
2.5
Answers: 2
Mathematics, 21.06.2019 18:30, joaquin42
Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.
Answers: 1
Mathematics, 21.06.2019 18:50, hartmaaj95
The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103
Answers: 3
The table shows how the time it takes a train to
travel between two cities depends on its average
History, 10.03.2020 00:28
English, 10.03.2020 00:28
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