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zubka84 [21]
3 years ago
7

A map uses 5cm to mean 24 miles. How many miles matches 13cm?

Mathematics
1 answer:
Doss [256]3 years ago
5 0

Answer:

62.4 miles

Step-by-step explanation:

The way to determine this is to set up a proportion,

5 cm/24 miles = 13 cm/x miles,

and then solve for x by cross multiplying,

5*x = 24*13.

<em>If you don’t understand that step, try writing it out on paper with fractions instead of division signs.</em> Next, solve.

x = 62.4

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8W = 16 units
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A study is conducted to determine whether a new cancer drug increases the mean survival time by at least 30 days for a certain t
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Answer:

H0: The new cancer drug increases the mean survival time by 30 days

Ha: The new cancer drug increases the mean survival time by 30 or more than 30 days.

If fail to reject H0 (the null hypothesis), the conclusion is that the new cancer drug increases the mean survival time by 30 days.

Step-by-step explanation:

The null hypothesis is a statement from a population parameter which is either rejected or accepted (fail to reject) upon testing. It is expressed using the equality sign.

The alternate hypothesis is also a statement from a population parameter which negates the null hypothesis and is accepted if the null hypothesis is rejected. It is expressed using any of the inequality signs.

The test is a two-tailed test because the alternate hypothesis is expressed using more than or equal to.

If I fail to reject H0, it means the test statistic falls within the region bounded by the critical values.

It would therefore be concluded that the new cancer drug increases the mean survival time by 30 days.

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3 years ago
The two-way table shows the distribution of book style to genre. Miguel claims that given that the book is paperback (PB) does n
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3 years ago
Find the missing side of the triangle
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6 0
2 years ago
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Solve this problem thanks
vovikov84 [41]

The three missing lengths are the left hypotenuse, x, the middle altitude, y, and the right hypotenuse, z.


9/y = y/16


y^2 = 9 * 16


y^2 = 144


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From left to right, the sides measure 15, 12, and 20 units.

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3 years ago
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