Mathematics, 07.10.2019 21:30 honey66
Bob takes the subway to work and uses an escalator at the railway station. if bob runs up 8 steps of the escalator, then it takes him 46.5 seconds to reach the top of the escalator. if he runs up 13 steps of the escalator, then it takes him only 39.0 seconds to reach the top. how many seconds would it take bob to reach the top if he did not run up any steps of the escalator
Answers: 3
Mathematics, 21.06.2019 23:10
Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth
Answers: 2
Mathematics, 22.06.2019 00:00
City l has a temperature of −3 °f. city m has a temperature of −7 °f. use the number line shown to answer the questions: number line from negative 8 to positive 8 in increments of 1 is shown. part a: write an inequality to compare the temperatures of the two cities. (3 points) part b: explain what the inequality means in relation to the positions of these numbers on the number line. (4 points) part c: use the number line to explain which city is warmer. (3 points)
Answers: 2
Mathematics, 22.06.2019 03:00
Dana wants to identify the favorite professional baseball team of people in her community. she stands outside a local sporting goods store and asks every other person who enters, "what is your favorite professional baseball team? " will the results of her survey be valid? explain.
Answers: 1
Bob takes the subway to work and uses an escalator at the railway station. if bob runs up 8 steps of...
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