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Solve the problem. Use the Central Limit Theorem. (7) 6) The annual precipitation amounts in a certain mountain range are normal

yulyashka [42]

Answer:

The answer is "0.9192".

Step-by-step explanation:

$\mu=109\\\\\sigma=10\\\\n=25\\\\\to P(\bar{x}< 111.8)=P(\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}} < \frac{111.8-109}{\frac{10}{\sqrt{25}}})\\\\$

$=P(2$

7 0

3 years ago

Nick walked 5 miles to reach his aunt's house. From there he traveled 8 miles to the shopping mall on a bicycle. He traveled 80%

iragen [17]

The number of hours Nick took to reach the shopping mall in terms of r is ; 3.14 hours.

Rate is a measure of a quantity using another quantity as the basis.

Analysis:

speed travelling on foot = r

distance travelled on foot = 5 miles

time taken = 5/r

speed travelling on bicycle 80 percent faster than on foot is 1.8r

distance travelled on bicycle = 8 miles

time taken = 8/1.8r = 40/9r

total time taken to get to the mall = 5/r + 40/9r = 85/9r

speed while walking = 3 miles per hour = r

time taken = 85/9 x 3 = 3.14 hours

In conclusion, number of hours Nick took to reach the shopping mall in terms of r is 85/9r is 3.14 hours.

Learn more about Time to reach a distance : brainly.com/question/17146782

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7 0

2 years ago

Subtract: (8x + 7) - (4x + 5) * O4x + 12 O 44-12 O4x + 2 O 44-2

ziro4ka [17]

The answer is: 4x+2

Hope this helps u out :D

3 0

4 years ago

Read 2 more answers

Estimate the total cost of 31 televisions at £196.50 each and 19 DVD players at £50.99 each

Gwar [14]

Answer:

Solution,

Cost of one television=£196.50

cost of 31 televisions:

 $= 196.50 \times 31 \\ = 6091.5$ 

Cost of one DVD player=£50.99

Cost of 19 DVD player:

 $= 50.99 \times 19 \\ = 968.81$ 

Now,

Total cost

= cost of 31 televisions + cost of 19 DVD player

=6091.5+968.81

=£7060.31

Hope this helps...

Good luck on your assignment..

3 0

4 years ago

Read 2 more answers

1/71 in multiplication inverse

Cloud [144]

Answer:

71

Step-by-step explanation:

1/71 * ? = 1

1/71 * x = 1 [consider 'x']

x = 1/(1/71)

x = (1/1)/(1/71) [1 = (1/1)]

x = (1/1)* (71/1)

x = 71.

Hope you're satisfied.

8 0

3 years ago