Mathematics, 07.07.2019 16:30 texas101st78
When a car travels a distance of d kilometers in time t hours, the average speed for the journey is given by a =4/t km h^-1. find: a. the average speed of a car which travels 200km in 2 1/2 hours. b. the distance travelled by a car in 3 1/4 hours if its average speed is 80 km h^-1. c. the time taken, to the nearest minute, for a car to travel 865 km at an average speed of 110 km h^-1
Answers: 1
Mathematics, 21.06.2019 18:20
Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315
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Mathematics, 21.06.2019 21:00
The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years
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Mathematics, 21.06.2019 21:40
The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?
Answers: 2
When a car travels a distance of d kilometers in time t hours, the average speed for the journey is...
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