Please help, I am so confused

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

5 0

Answer:

$\huge\boxed{25.2\ m}$

Step-by-step explanation:

In order to find the length of the missing side here, we must note that these triangles are similar.

Therefore their lengths are proportionate to each other.

So,

$\frac{27.6}{11.5} = \frac{x}{10.5}$

We can solve for x by cross multiplying.

$10.5\cdot 27.6 = 289.8\\\\289.8 \div 11.5 = 25.2$

Hope this helped!

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Public health officials believe that 90% of children have been vaccinated against measles. A random survey of medical records at

Vikentia [17]

Answer:

The answer to the question is;

Yes, it is very significant as the number of of observed vaccinated children is below the number of actually vaccinated children by 78.

Step-by-step explanation:

The result of the survey of more than 13,000 children indicate that only 89.4 % had actually been and the P-value indicate that the chance of having a sample proportion of 89.4 % vaccinated is 1.1 %.

P is low at 0.011 for which however the proportion of those vaccinated is between 0.889 and 0.899 using a 95% confidence interval, whereby the decrease from 90 % believed to 89.9 % is small, albeit it depends on the size of the population.

At 89.4 %, in a sample of 13,000, the number of children expected to have been vaccinated but were missed is equal to 90 - 89.4 = 0.6 % = 0.006

Therefore the children missed = 78 children which is significant.

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4 years ago

Quinn runs 3 miles<br>3 times every week.<br>How many miles<br>does Quinn run in<br>6 weeks?

drek231 [11]

Answer:

54 miles.

Step-by-step explanation:

Quinn runs 3 miles 3 times every week, which means he runs 9 miles every week.

We can multiply this by 6, which we get 54, so get the amount of miles Quinn runs in 6 weeks.

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