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Vera_Pavlovna [14]
3 years ago
10

A train left Apex at 12 P.M. and traveled for 3 hours and 5 minutes. It stopped for fuel for 10 minutes, and then continued towa

rd its destination for 1 hour and 20 minutes. What time did the train arrive at its destination
Mathematics
2 answers:
Gala2k [10]3 years ago
5 0

Answer:

the answer should be 4:35

Step-by-step explanation:

Alina [70]3 years ago
3 0
It should be... 4:35
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Which point is a solution of x^2 + y^2 > 49 and y ≤ –x^2 – 4 ?
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C. 1, -9

Step-by-step explanation:

I just put it on desmos

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I need hlep asap :$:)):):
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Answer:

w\geq -2

Step-by-step explanation:

Distribute the 5 into the parentheses (multiply them both by 5)

15.5w+6.5\geq -25

Subtract the 6.5 from -25.

15.5w\geq -31.5

Divide -31.5 by 15.5.

w\geq -2

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Akshat spent 3 hours each day driving to and form work. He opened an office closer to home and now drives 80 minutes to and form
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Based on historical data, your manager believes that 40% of the company's orders come from first-time customers. A random sample
Vedmedyk [2.9K]

Answer:

P(0.26 \leq p \leq 0.43)=0.7204-0.0032=0.7172

Step-by-step explanation:

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

The population proportion have the following distribution

p \sim N(p=0.4,\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.4(1-0.4)}{91}}=0.0514)

And we can solve the problem using the z score on this case given by:

z=\frac{p_o -p}{\sqrt{\frac{p(1-p)}{n}}}

We are interested on this probability:

P(0.26 \leq p \leq 0.43)

And we can use the z score formula, and we got this:

P(\frac{0.26 -0.4}{\sqrt{\frac{0.4(1-0.4)}{91}}} \leq Z \leq \frac{0.43 -0.4}{\sqrt{\frac{0.4(1-0.4)}{91}}})

P(-2.726 \leq Z \leq 0.584)

And we can find this probability like this:

P(-2.726 \leq Z \leq 0.584)=P(Z

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3 years ago
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