Mathematics, 29.01.2020 09:58 kaffolter25
Two cars are 750 miles apart and start moving towards each other. one car moves with the average speed of 40 mph and the other is 10 mph faster. when will the cars meet if they started to move at 11: 00 a. m.?
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Mathematics, 21.06.2019 13:30
The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).
Answers: 1
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 00:30
Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i
Answers: 1
Two cars are 750 miles apart and start moving towards each other. one car moves with the average spe...
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