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Annette [7]
3 years ago
14

Please help me asap i will mark branlist please explain

Mathematics
1 answer:
djverab [1.8K]3 years ago
3 0

Answer:

195in^2 is the correct answer.

Step-by-step explanation:

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Two planes start from los angeles international airport and fly in opposite directions. the second plane starts 1/2 hour after t
mixer [17]
Let x = first plane's speed.  
We have the equation:
 2 hours * x km/h + 1.5 hours * (x+60) km/h = 3135 km. 
 3.5 hours*x km/h + 90 km = 3135km
 3.5hours*x km/h = 3045km 
 x = 870 km/h. 
 The first plane is traveling at 870 km/h, therefore since it is 60 km/h faster, the second plane is traveling at 930 km/h.
6 0
3 years ago
Please help, and explain step by step, thanks!
allsm [11]

Answer:

<em>Answer: B San Francisco</em>

Step-by-step explanation:

It can be read that Geneva is 12°C colder than Nikki's hometown. It can be seen in the table that Geneva is at -3°C.

This means that Nikki's hometown is 12°C hotter than Geneva, thus:

Temperature of Nikki's hometown = -3°C + 12°C = 9°C.

The only city with a temperature of 9°C is San Francisco.

Answer: B San Francisco

5 0
3 years ago
According to insurance records, a car with a certain protection system will be recovered 95% of the time. If 800 stolen cars are
Lapatulllka [165]

Answer: Mean = 760

Standard deviation = 6.16

Step-by-step explanation:

Given : The number of trials: n=800

The probability that  a certain protection system will be recovered :p=0.95

We know that the mean and standard deviation of binomial distribution is given by :_

\text{Mean}=np

\text{Standard deviation}=\sqrt{np(1-p)}, where n is the number of trials and p is the probability of success.

Now, the mean and standard deviation of the number of cars recovered after being stolen is given by :-

\text{Mean}=800\times0.95=760

\text{Standard deviation}=\sqrt{800\times0.95(1-0.95)}\\\\=6.164414002\approx6.16

Hence, the mean is 760 and standard deviation is 6.16 .

7 0
3 years ago
What makes this equation true:543 - blank = 542 - 1
vazorg [7]
Blank equals 2 because 543-2=541
7 0
3 years ago
Which part of the water cycle would follow step D in the diagram shown?
MissTica

Answer:

A) Transpiration

Step-by-step explanation:

It is showing plants and trees losing water to the air.

Hope this helps!

8 0
3 years ago
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