Mathematics, 23.01.2020 22:31 dondre54
"if a ball is thrown into the air with a velocity of 44 ft/s, its height in feet t seconds later is given by y = 44t − 16t2. (a) find the average velocity for the time period beginning when t = 2 and lasting for each of the following. (i) 0.5 seconds ft/s (ii) 0.1 seconds ft/s (iii) 0.05 seconds ft/s (iv) 0.01 seconds ft/s (b) estimate the instantaneous velocity when t = 2. ft/s"(c) find the average velocity for the time period beginning whent = 2 and lasting 0.05 second. ft/s(d) find the average velocity for the time period beginning whent = 2 and lasting 0.01 second. ft/s(e) estimate the instantaneous velocity when t = 2.
Answers: 1
Mathematics, 21.06.2019 17:30, nayellisoto15
Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil
Answers: 1
Mathematics, 21.06.2019 19:30, shanua
Needmax recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 2
"if a ball is thrown into the air with a velocity of 44 ft/s, its height in feet t seconds later is...
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