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velikii [3]
3 years ago
12

Please answer question 14 C at rhe bottom and i will mark u whatever u want

Mathematics
1 answer:
Blizzard [7]3 years ago
4 0

Answer:

3km/h

Step-by-step explanation:

total distance ÷ total time = average speed

6 ÷ 2 = 3

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Fifteen percent of 168
allsm [11]

\large\text{Hey there!}


\rm{15\%\ of\ 168}\\\\\rm{= 15\% \times 168} \\\\\rm{= \dfrac{15}{100}\times 168}\\\\\rm{= \dfrac{15}{100}\times \dfrac{168}{1}}\\\\\rm{=\dfrac{15\times168}{100\times1}}\\\\\rm{= \dfrac{2,520}{100}}\\\\\rm{= 25.2}


\huge\text{Therefore, your answer should be: }

\huge\boxed{\frak{25.2}}\huge\checkmark


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1 year ago
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Please help with both of these~! Thank you!
Musya8 [376]
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3 years ago
Running times for 400 meters are Normally distributed for young men between 18 and 30 years of age with a mean of 93 seconds and
kkurt [141]

Answer: The running time should at least 119.32 seconds to be in the top 5% of runners.

Step-by-step explanation:

Let X= random variable that represents the running time of men between 18 and 30 years of age.

As per given, X is normally distrusted with mean \mu=93\text{ seconds} and standard deviation \sigma=16\text{ seconds}.

To find: x in top 5% i.e. we need to find x such that P(X<x)=95% or 0.95.

i.e. P(\dfrac{X-\mu}{\sigma}

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Since, z-value for 0.95 p-value ( one-tailed) =1.645

So,

Hence, the running time should at least 119.32 seconds to be in the top 5% of runners.

6 0
3 years ago
Find the missing value that makes the equation true. 15 + 30 = (3 + 6)​
galina1969 [7]
Missing Value = 5

15+30=5(3+6)
Distribute
45=15+30
Simplify
45=45
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