3.3 divided by 0.3 please help
1 answer:
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Answer:
Step-by-step explanation:
<h2><u>Lesson : Probability</u></h2><h2><u></u></h2>- We have a bag with 4 white chips and 6 black chips
- Question : What is the probability of randomly choosing a white chip, not replacing it, and then randomly choosing another white chip?
4 white and 6 black
4 + 6 = 10
Choosing the first white chip :
Since we took one out , now
3 white chips , 6 black chips
3 + 6 = 9
Choosing another white chip :
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Answer:
The distance up the ramp in meters she should release the ball if she wants it to reach the bottom in 1.9 seconds is approximately 10 meters
Step-by-step explanation:
The given parameters of the motion of Kathy are expressed in a tabular form after sorting in increasing order using Microsoft Excel, as follows, as follows;
The general form of the quadratic equation is d = a·t² + b·t + c
Taking the points (0.07, 1.5), (0.27, 1.69), and (0.6, 2.4), which are shown to best follow the path of a quadratic (parabolic) curve by using the Chart function to plot the data on Microsoft Excel, we have;
1.5 = a·0.07² + b·0.07 + c = 0.0049·a + 0.07·b + c
1.69 = a·0.27² + b·0.27 + c = 0.0729·a + 0.27·b + c
2.4 = a·0.6² + b·0.6 + c = 0.36·a + 0.6·b + c
1.5 = 0.0049·a + 0.07·b + c
1.69 = 0.0729·a + 0.27·b + c
2.4 = 0.36·a + 0.6·b + c
Solving with the above system of equations, we have;
a ≈ 2.267
b ≈ 0.179
c ≈ 1.476
Therefore, we have;
d ≈ 2.267·t² + 0.179·t + 1.476
The distance, 'd', up the ramp in meters from which she should release the ball so that the ball reaches the bottom in t = 1.9 seconds is given as follows;
d ≈ 2.267 × (1.9)² + 0.179 × (1.9) + 1.476 = 9.9997
The distance up the ramp in meters she should release the ball if she wants it to reach the bottom in t = 1.9 seconds is d ≈ 9.9997 meters which is approximately 10 meters.
