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Dmitry [639]
3 years ago
15

PLEASE HELP ; I need help on this ? I am confused .

Mathematics
2 answers:
Goryan [66]3 years ago
7 0
For the first box, you'll type in "100,000" without quotes. Chances are you will also erase the comma as well. Don't erase the comma until you are certain that there are 5 zeros present. To be sure if you have a comma or not, it might be best to ask the teacher for clarification.

We multiply 2.56 times 100,000 to get 256,000

To write 100,000 as a power of 10, we write it as 10^5
In other words, 10^5 = 100,000
Therefore, 5 goes in the second box

Notice how to get from 2.56 to 256,000 we move the decimal point 5 spots to the right. The exponent 5 over the 10 tells us how far to move. The positive exponent means "Move to the right"

So to summarize
256,000 = 2.56 \times {\bf{100,000}} = 2.56 \times 10^{\bf{5}}
zubka84 [21]3 years ago
6 0
256,000-2.56*100,000
Since there are 6 digits in 256,000, it is 2.56*100,000 becuase 100,000 also has 6 digits.
2.56*100,000=2.56*10^5
Since there are 5 zeroes in 100,000, it is 10^5.
256,000=2.56*100,000=2.56*10^5
First box: 100,000
Second box: 5
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A triangle has sides with lengths of 5 millimeters, 8 millimeters, and 10 millimeters. Is it a right triangle?
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Step-by-step explanation:

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Cancel sin(x)^2 from the numerator and denominator. ((cos(x)^2 + sin(x)^2) sin(x)^2)/(sin(x)^2 cos(x)) = (sin(x)^2 (cos(x)^2 + sin(x)^2))/(sin(x)^2 cos(x)) = (cos(x)^2 + sin(x)^2)/cos(x):

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Hint: | Eliminate the denominators on both sides.

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Substitute cos(x)^2 + sin(x)^2 = 1:

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Hint: | Come to a conclusion.

The left hand side and right hand side are identical:

Answer: (identity has been verified)

3 0
2 years ago
What is 102.3 divided by 4.7 <br> estimated answer
andriy [413]

round 102.3 to 100

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100/5=20

20 is the answer

6 0
3 years ago
Read 2 more answers
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