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Greeley [361]
3 years ago
11

a bag contains 14 red tiles, 20 blue tiles, and 16 green tiles, a tile is randomly drawn from the bag. if this is done 40 times

how many times do you expect to draw a blue tile
Mathematics
2 answers:
ololo11 [35]3 years ago
7 0
Total=14+20+16=50
P(blue)=20/50=2/5

so, answer=(2/5)*40=16
aniked [119]3 years ago
7 0
There are total 16+14=30 tiles which are not blue.
So, we can get maximum 30 tiles of different colours(not blue) in our first 30 chances then we must get at least 10 blue marbles in our next 10chances.
Therefore, we expect at least 10blue marbles if we drawn marbles randomly for 40 times from the bag.

I hope it will help you.
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For a special order, The ABC company manufactured 400 shirts. Sweatshirts were priced at $35 each and T-shirts at $25 each. The
hodyreva [135]

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6 0
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Maria's height while jumping on a a trampoline can be modeled by the equation h=-16t^2+18t+5. Where t=time in seconds and h=heig
Vadim26 [7]

Answer:

10.06 ft

Step-by-step explanation:

Maria's maximum height will occur when her velocity reaches zero (0). This means that she has stopped ascending and is about to begin descent.

The equation for the height reached by Maria on the trampoline is given as:

h=-16t^2+18t+5

To find her maximum height, we first have to find the time it will take her to get to that height and corresponding velocity (zero).

Her velocity can be found by differentiating her height i.e. dh/dt:

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Therefore, when v = 0:

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It takes her 0.5625 seconds to get to her maximum height.

Therefore, her height at that time (0.5625 seconds) is:

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3 0
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