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3 years ago

Solve g! The problem is -3/4g > 6! please help!

Mathematics

1 answer:

Nina [5.8K]3 years ago

7 0

Answer: (I used photo math to solve this so i'm sorry if it is wrong) g<-960

Step-by-step explanation:

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A parachutist's speed during a free fall reaches 75 meters per second. What is this speed in feet per second? At this speed, how

Lady_Fox [76]

The speed in feet per second is 247.5

The parachutist will fall 4950 feet during 20 seconds.

Step-by-step explanation:

Given,

Speed during free fall = 75 meters per second

It is given that,

1 meter = 3.3 feet

75 meter = 75*3.3 = 247.5 feet

Therefore;

Speed during free fall in feet = 247.5 feet per second

Now,

1 second = 247.5 feet

20 seconds = 247.5*20 = 4950 feet

Fall during 20 seconds = 4950 feet

The parachutist will fall 4950 feet during 20 seconds.

Keywords: multiplication

Learn more about multiplication at:

#LearnwithBrainly

8 0

3 years ago

the difference between 3 times a number 7 is 5. write and solve an equation to determine the number. select the solution and gra

DedPeter [7]

Answer:

3n - 7 = 5

n = 4

Step-by-step explanation:

3n - 7 + 7 = 5

3n = 12

3n/3 = 12/3

n = 4

8 0

4 years ago

Read 2 more answers

The price of a toy usually costing £50 is increased to £65<br> Work out the percentage increase

olga55 [171]

30% increase thats the answer

6 0

4 years ago

Read 2 more answers

Can you help me, I don't understand it....

labwork [276]

Median is the average. I'm pretty sure interquartile is the biggest number out of the two.

Add the numbers for the first semester up, then divide by the amount of numbers. Do the same for semester two, then pick the correct answer in the multiple choices... For example in semester one you'd divide the added amount by 5.

If i'm wrong i'd like anyone to let me know what I messed up in! :)

8 0

4 years ago

A lot of 25 skylight covers are received at your construction site, and before installation are subjected to an acceptance testi

Vladimir79 [104]

Answer:

If the lot has 4 defective covers out of 25 total covers, the probability of accepting the lot is P=0.98.

Step-by-step explanation:

We have a population of N=25 skylight covers, were K=4 are defective.

We sample n=5 covers, and we will accept the lot if k=2 or fewer are defective.

We will use the hypergeometric distribution to model this probabilities.

First, to be accepted, the sample can have 2, 1 or 0 defective covers, so the probability of being accepted is:

$P(accepted)=P(k\leq2)=P(k=0)+P(k=1)+P(k=2)$

The probability that there are k defective covers in the sample is:

$P(k)=\dfrac{\dbinom{k}{k}\dbinom{N-k}{n-k}}{\dbinom{N}{n}}$

Then, we can calculate the individual probabilities as:

$P(k=0)=\dfrac{\dbinom{4}{0}\cdot \dbinom{25-4}{5-0}}{\dbinom{25}{5}}=\dfrac{\dbinom{4}{0}\cdot \dbinom{21}{5}}{\dbinom{25}{5}}\\\\\\P(k=0)=\dfrac{1\cdot 20349}{53130}=0.38$

$P(k=1)=\dfrac{\dbinom{4}{1}\cdot \dbinom{25-4}{5-1}}{\dbinom{25}{5}}=\dfrac{\dbinom{4}{1}\cdot \dbinom{21}{4}}{\dbinom{25}{5}}\\\\\\P(k=1)=\dfrac{4\cdot 5985}{53130}=0.45$

$P(k=2)=\dfrac{\dbinom{4}{2}\cdot \dbinom{25-4}{5-2}}{\dbinom{25}{5}}=\dfrac{\dbinom{4}{2}\cdot \dbinom{21}{3}}{\dbinom{25}{5}}\\\\\\P(k=2)=\dfrac{6\cdot 1330}{53130}=0.15$

If we add this probabilities, we have:

$P(accepted)=P(k\leq2)=P(k=0)+P(k=1)+P(k=2)\\\\P(accepted)=0.38+0.45+0.15=0.98$

If the lot has 4 defective covers out of 25 total covers, the probability of accepting the lot is P=0.98.

6 0

3 years ago