svarner2001
29.01.2020 •
Mathematics
Which of these are less than 2.03. choose all that apply.
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Ответ:
The answer is A.
Step-by-step explanation: The two big things are a one, so it is 2.00, and then the last box is .02. Add .02 to 2.00, and get 2.02. That is less. 2 12/100 is basically 2.12, and the last one is either 23, or 230. But it is over or equal and not under.
Ответ:
Part 1) Height of ball at launch = 3 feet.
Part 2) Maximum height achieved by ball = 17 feet
Part 3) Point at which ball strikes the ground = 29.43 feet from point of launch.
Step-by-step explanation:
The height as a function of position of launch is given as
Part 1)
Since at the time the ball leaves the hand of the child the distance of the ball from point of throwing is zero thus putting x = 0 in the above equation we get
Height of throw
Thus the ball is at 3 feet high when it leaves the child's hand.
Part 2)
The maximum height the ball achieves can be found by maximizing the given function
Thus differentiating equation 'i' with respect to 'x' and subsequently equating to zero we get
Thus the maximum value of y(x) occurs at x = 14 feet thus
Part 3)
At the moment the ball strikes the ground it's height from the ground should be = 0
Thus equating y(x) = 0 we get
Taking the positive value we find the distance at which the ball strikes the ground equals 29.43 feet.