Mathematics, 19.07.2019 17:30 homeschool0123
People enter a line for an escalator at a rate modeled by the function r given by (see image) where r(t) is measured in people per second and t is measured in seconds. as people get on the escalator, they exit the line at a constant rate of 0.7 person per second. there are 20 people in line at time t = 0. (a) how many people enter the line for the escalator during the time interval 0 ≤ t ≤ 300? (b) during the time interval 0 ≤ t ≤ 300, there are always people in line for the escalator. how many people are in line at time t = 300 ? (c) for t > 300, what is the first time t that there are no people in line for the escalator? (d) for 0 ≤ t ≤ 300, at what time t is the number of people in line a minimum? to the nearest whole number, find the number of people in line at this time. justify your answer.
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Write and solve a real word problem that involves determining distance on a coordinate plane
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Mathematics, 21.06.2019 19:40
The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.
Answers: 1
People enter a line for an escalator at a rate modeled by the function r given by (see image) where...
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