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katrin2010 [14]
3 years ago
15

Write in scientific notation. 0.000000459

Mathematics
1 answer:
-BARSIC- [3]3 years ago
4 0

Answer:

4.59*10^{-7}

Step-by-step explanation:

We need to move the decimal so there is only one zero to the left of the decimal point. Since the decimal is being moved to the right, it is a negative exponent.

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Cesar turned in his third research report, his teacher said that he had completed 20%of the reports for the school year, how man
AleksAgata [21]

Answer:

Cesar will be doing  15 research reports during the school year.

Step-by-step explanation:

Given:

Number of research report completed = 3

Percentage of the report completed for school year = 20%

We need to find total number of research report completed during school year.

Solution:

Let the total number of research report completed during school year be 'x'.

Now we can say that;

Number of research report completed is equal to Percentage of the report completed for school year multiplied by total number of research report completed during school year and then divided by 100.

framing in equation form we get;

3=\frac{20}{100}\times x\\\\3=0.2x

Dividing both side by 0.2 we get;

\frac{3}{0.2}=\frac{0.2x}{0.2}\\\\x=15

Hence Cesar will be doing  15 research reports during the school year.

6 0
3 years ago
I’ll mark brainliest for anyone who answers.
mash [69]

Answer:

Step-by-step explanation:

You have the right answer

5 0
3 years ago
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A sum of 450 Euros is invested at 3.2% per annum at compound interest. The following formula expresses the value of the investme
Anon25 [30]

Answer:

u have to eat mcdonalds

Step-by-step explanation:

7 0
2 years ago
. Each of the following has 9 as a factor except<br> A) 18018 B) 18 081 C) 81 180<br> D) 81 181
Arlecino [84]

Answer:

d

Step-by-step explanation:

81181÷9=9020.111111

every other number has a whole number as an answer not a decimal

4 0
2 years ago
Find the distance between (-3, -11) and (8, -42)
Marianna [84]

Answer:

32.8937 units

Step-by-step explanation:

So, we can imagine this as a right triangle with a length of 11 (THe change of the X's) and the height being 31 (Change of the Y's)

Then we use pythagorean therom to find the hypotenuse (the length)

11^2 + 31^2 = c^2

121+961 = C^2

1082 = c^2

32.8937units

3 0
2 years ago
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