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Ira Lisetskai [31]
2 years ago
14

In a certain​ city, the average​ 20- to​ 29-year old man is 69.6 inches​ tall, with a standard deviation of 3.1 ​inches, while t

he average​ 20- to​ 29-year old woman is 64.1 inches​ tall, with a standard deviation of 3.9 inches. Who is relatively​ taller, a​ 75-inch man or a​ 70-inch woman?
Mathematics
1 answer:
levacccp [35]2 years ago
8 0

Answer:

the 20-29 year old man are relatively taller.

Step-by-step explanation:

for the old man we have next z- score=75-69.6/3.1=1.74

for the old women we have next z-score=70-64.1/3.9=1.51

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Find the length of a picture frame whose width is 3 inches and whose proportions are the same as a 9-inch wide by 12-inch long p
barxatty [35]

Answer:

4 inches

Step-by-step explanation:

We can set up a proportion to find out the length value (assuming x is the length of the frame)

\frac{3}{x} = \frac{9}{12}

We multiply 12 and 3...

12\cdot3=36

And divide by 9...

36\div9=4

So, the length of the frame is 4 inches.

Hope this helped!

7 0
3 years ago
A van moves with a constant speed of 36 miles per hour How long will it take to travel a distance of 177 miles?​
Temka [501]

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Answer:

  4 hours 55 minutes

Step-by-step explanation:

Time, speed, and distance are related by ...

  t = d/s

  t = (177 mi)/(36 mi/h) = 4 33/36 h = 4 11/12 h

The fractional part of this time is ...

  11/12 hour is (11/12)(60) = 55 minutes

The van will take 4 hours and 55 minutes to travel a distance of 177 miles.

7 0
2 years ago
If two thirds of a number is 56, what is three-quarters of that number?
Crank

Answer:

84

Step-by-step explanation:

56/2 = 28

28 x 3 = 84

To check work: 84/3 =28

5 0
3 years ago
The zero of F -1(x) in F(x) = x + 3 is
seropon [69]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Can someone help me with this. Will Mark brainliest. Need answer and explanation/work. Thank you.
makkiz [27]

Answer:

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7 0
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