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2 years ago

In what temperature range can mercury be found as a liquid

1 answer:

4 0

Some metals melt at lower temps than others. Tin becomes liquid at 231.8˚C (447.8˚F); at the other end of the spectrum, tungsten has the highest melting point of any metal: 3,422˚C (6,192˚F). Somewhere in the middle is mercury, which stays in a liquid state until its temperature drops to -40.

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The weight of people in a small town in missouri is known to be normally distributed with a mean of 154 pounds and a standard de

ad-work [718]

If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:
$z=\frac{173-154}{29}=0.655$
Referring to a standard normal distribution table, and using z = 0.66, we find:
$P(\bar x\ \textless \ 173)=0.7454$
Therefore
$P(\bar x\ \textgreater \ 173)=1-0.7454=0.2546$
The answer is: 0.2546

4 0

4 years ago

At an aquarium, a tour of the shark tanks begins every 45 minutes. The dolphin show begins every 30 minutes. If the shark tour a

bixtya [17]

10:30 cause the the fourth dolphin show is 10:30 and third shark tank tour starts at 10:30

Hope this helps

7 0

3 years ago

Read 2 more answers

Jessica's heart beats 12 times in 1/6 minute how many times does her heart beat each minute

Charra [1.4K]

Answer:

Step-by-step explanation:

12 6 times equals 72.

12x6=72

4 0

4 years ago

What is the value of 0.34×9.

anastassius [24]

The answer is 3.06

0.34

x 9

_________

3.06 Just multiply 0.34*9=3.06 then count two places left to place the decimal point in the proper place

3 0

3 years ago

Read 2 more answers

PLEASE HELP WITH THE PROBLEM ON THE ATTACHED FILE

prisoha [69]

Answer:

6 : 1

Step-by-step explanation:

b - 3a / 9 = a /3

Cross multiply

3(b - 3a) = 9a

Expand

3b - 9a = 9a

Add 9a to both sides

3b = 9a + 9a

3b = 18a

Divide both sides by 3

b = 6a

Ratio of a : b

6 : 1

6 0

3 years ago