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svetlana [45]
3 years ago
8

Help

Mathematics
2 answers:
Svet_ta [14]3 years ago
8 0
Part A
4.8 inches

Part B
3.125 miles
Karo-lina-s [1.5K]3 years ago
3 0
Part A:
25/2 = 12.5 miles/inch
60/12.5 = 4.8 inches for 60 miles
Part B:
25/2 = 12.5 miles/inch
12.5/4 (1/4 is the fraction given above) = 3.125 miles per 1/4 inch
Let's check our work
3.125 x 4 (whole) = 12.5 miles/inch
12.5 x 2 (inches) = 25 miles per 2 inch
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Answer:

97.75 %

Step-by-step explanation:

You score 1 standard deviation above the mean

a) we have from left tail up to the mean 50 % of all values

b) We have in the interval  [ μ  -  σ  ;  μ  +  σ ] 95.5 % of all possible values, if we divide that 95.5 by 2 we get 47.75 %,  the part of the values that correspond to the right, then in order to get the  % of students scored lower we add

50  +  47.75   = 97.75 %

So you can say that the porcentage of students that scored lower than you is 97.75 %

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3 years ago
Alexis and tara both mine salt. alexis mines 300 pounds in 20 hours. tara mines 400 pounds in 40 hours. which of the following i
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Well, if both Alexis and Tara mine salt for 40 hours... they'd have mine 1,000 pounds of salt. Is this what you were looking for?
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3 years ago
Square root of 648.7209 by division method
SpyIntel [72]

Answer:

25.47

Step-by-step explanation:

This root can be rewritten as:

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\sqrt{\frac{6487209}{100^{2}} }

\frac{1}{100}\cdot \sqrt{6487209}

Since 6487209 is a multple of 3, the expression can be rearranged as follows:

\frac{1}{100}\cdot \sqrt{3\times 2162403}

2162403 is also a multiple of 3, then:

\frac{1}{100}\cdot \sqrt{3^{2}\times 720801}

\frac{3}{100}\cdot \sqrt{720801}

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\frac{3}{100}\cdot \sqrt{3\times 240267}

240267 is a multiple of 3, then:

\frac{3}{100}\times \sqrt{3^{2}\times 80089}

\frac{9}{100}\cdot \sqrt{80089}

80089 is a multiple of 283, then:

\frac{9}{100}\cdot \sqrt{283^{2}}

\frac{9\times 283}{100}

\frac{2547}{100}

25.47

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4 years ago
An astronaut is returning to Earth in a spacecraft. If the spacecraft is descending at a rate of 13.81 kilometers per minute, wh
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Answer:

then 18 hours

Step-by-step explanation:

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3 years ago
What would the value of x be
nlexa [21]

Answer:

65°

Step-by-step explanation:

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65+115+115=295

360-295=65

Answer: 65°

8 0
4 years ago
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