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Lady_Fox [76]
3 years ago
5

A man steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slo

wly falls the remaining 2000m to the ground what height above the ground would be the best Choice for a reference point
Mathematics
1 answer:
Mumz [18]3 years ago
7 0

Answer:

Step-by-step explanation:

A man steps out of a plane at 4,000m of height above the ground.The point at which he jumps out of the plane would make a good reference point. However, if his acceleration is going to change as a result of him opening his parachute 2000m above the ground, a good reference point would be there. Keep in mind though, that his velocity at that instant would need to be known for it to be useful- otherwise the airplane reference point would be just as good with appropriate modeling....

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

For what mileages will company A (which has a flat rate of $111) be less than the cost for company B

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as we are dividing by a positive number, we don't have to change the direction of the < sign.

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The college hiking club is having a fund raiser to buy new equipment for fall and winter outings. The club is selling Chinese fo
PolarNik [594]

Answer:

a)

- the probability she will win the dinner for two is 0.016

- the probability she will not win the dinner for two is 0.984

b)

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Step-by-step explanation:

Given the data in the question;

fortune cookies; $1 per cookies

club sold 743

a) Lisa bought 12 cookies. What is the probability she will win the dinner for two?

P( she will win ) = Number of cookies bought / Total number of cookies

P( she will win ) = 12 / 743

P( she will win ) = 0.01615 ≈ 0.016

Therefore,  the probability she will win the dinner for two is 0.016

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P( she will not win ) = 1 - 0.016

P( she will not win ) = 0.984

Therefore,  the probability she will not win the dinner for two is 0.984

b)  Lisa's expected earnings can be found by multiplying the value of the dinner by the probability that she will win. What are Lisa's expected earnings? (Round your answer to two decimal places.)$

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P( she will win ) = 0.01615

so

Lisa's earning = $35 × 0.01615

Lisa's earning = $0.57

Therefore, Lisa's expected earnings is $0.57

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Lisa's contribution = Money she paid for cookies - money from expected earnings

Lisa's contribution = ( 12 × $1 ) -  $ 0.57

Lisa's contribution = $12 -  $0.57

Lisa's contribution = $11.43

Therefore, Money she effectively contributed to the hiking club is $11.43

4 0
3 years ago
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Answer:

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Step-by-step explanation:

Let's solve your equation step-by-step.

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Step 1: Simplify both sides of the equation.

2.5(6x−4)=10+4(1.5+0.5x)

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Step 2: Subtract 2x from both sides.

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Step 3: Add 10 to both sides.

13x−10+10=16+10

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Step 4: Divide both sides by 13.  

x=2

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