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ziro4ka [17]
3 years ago
13

How many seconds are in 5 hours abs 30 minutes

Mathematics
1 answer:
dolphi86 [110]3 years ago
7 0

Answer:

19800 seconds

Step-by-step explanation:

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Select the correct answer. Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What
vivado [14]

Answer:

Step-by-step explanation:

A. 4.2E6 because when putting a number into scientific notation, you would want one number in front of the decimal place and then the trailing numbers would follow. The exponent or E stand for how many numbers are after the decimal, which in this case would be 6.  

4,200,000 → 4.2 x 10^6 which is equal to saying 4.2E6

Tip: If the exponent is negative than the decimal would go in the opposite direction. For example:

4,200,000 → 4.2 x 10^-6 would not equal each other because 4.2 x 10^-6 means 0.000004, six numbers would be behind the decimal.

8 0
3 years ago
4 divided into 4000 what the answer n remainder​
belka [17]

Answer:

4 divided into 4000 is 1000 with no remainders

4/4000=1000

7 0
3 years ago
Read 2 more answers
Select the correct answer,
ivanzaharov [21]

Answer:

D. 81

Step-by-step explanation:

Raise  

3

to the power of  

4

.

81

=

x

Rewrite the equation as  

x

=

81

.

x

=

81

7 0
2 years ago
I think of a number and on adding 13 to it ,I get 40.Write the equation for it ?​
Alekssandra [29.7K]

Answer:

x+13=40 and the answer to that is 27

6 0
3 years ago
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Fran swims at a speed of 2.8 mph in still water. The Lazy River flows at a speed of 0.8 mph. How long will it take Fran to swim
Elis [28]

Answer:

1.49 hrs or 1 hr and 30 minutes approximately

Step-by-step explanation:

if fran go 2.8m up then the river flow at a rate of 0.8m; the since we are taking the speed of fran and river to be constant. the ratio between their speed will always remain constant. that is if 0.8/2.8 = 0.286≈ this will be always constant.

so if he go up 4m then the horizontal length has to be 1.143 because 1.143/4 = 0.286.

now we find the distance between frans initial positon and final position. to find it we use pythagoras theorem.

\sqrt{(4^2 + 1.143^2)} =4.160 miles

to find the time divide distance traveled by speed;

4.160/2.8 = 1.49 hrs

7 0
3 years ago
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