Mathematics, 18.03.2021 09:30 beastboy13
On a forward somersault dive, Nina's height, h, in metres, above the
water is approximately modelled by the function h(t) = -5t^2+ 7t + 4,
where t is the time, in seconds, after she leaves the diving board. Graph
the function and use the graph to complete the following. a) Find Nina's
maximum height above the water. b) How long does it take her to reach
the maximum height? c) How long is it before she enters the water? d)
How high is the board above the water?
Answers: 2
Mathematics, 21.06.2019 14:10
1. during first 10 seconds 2. between 10 seconds and 35 seconds 3. during 35 seconds to 40 seconds
Answers: 1
Mathematics, 21.06.2019 15:00
Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?
Answers: 1
Mathematics, 21.06.2019 18:30
Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?
Answers: 1
Mathematics, 21.06.2019 19:00
Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°
Answers: 2
On a forward somersault dive, Nina's height, h, in metres, above the
water is approximately modelle...
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