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Archy [21]
3 years ago
14

1) What is the square root of 81​

Mathematics
1 answer:
vekshin13 years ago
3 0
It’s 9. Square root is like the common factor of that number doubled by itself ... & 9x9 equals 81
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Square root of 361x^7​
Pavlova-9 [17]

Answer:

19x^3\sqrt{x}

Step-by-step explanation:

19*19=361.

8 0
3 years ago
A train leaves at 1314 and arrives at 1508. It travelled at an average speed of 105 km/h.
Paraphin [41]

Answer: The train traveled 199.5 km

Step-by-step explanation:

We know the relationship:

Distance = Time*Speed

We know that the speed of the train was 105km/h

And we know that it leaves at 13:14, and arrives at 15:08.

Then the total amount of time that the train was traveling is:

T = (15 hours and 8 mins) - (13 hours and 14 mins)

= (15 - 13) hours and (8 - 14) mins

=  2 hours and (-6) mins.

We know that one hour has 60 minutes, then this is equal to:

T = 1 hour and 54 minutes.

But because the speed is kilometers per hour, we need to rewrite the 54 minutes in hours.

This can be done as follows:

1 hour = 60 minutes.

Then: 54 minutes = (54/60) hours = 0.9 hours.

Then:

1 hour and 54 minutes = 1.9 hours.

Now we know the speed and the time, then the distance can be calculated as:

Distance = speed*time = 105km/h*(1.9 h) = 199.5 km

The train traveled 199.5 km

3 0
3 years ago
Read 2 more answers
Jim has for cups of milk he wants to find the number of 1/4 cup serving in his four cups of milk draw a model to find how many 1
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16 is the answer :)))
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Darla wants to buy a dress for $20 and some shirts for $12 each. She has $80. Write and solve an inequality to find the number o
marishachu [46]

Answer:

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Step-by-step explanation:

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Which function is defined for x=0
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0 would be on the top, hope this helps

4 0
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