The radius of a hydrogen atom is about 0.000000106 millimeter. Write the length of this radius in scientific notation: millimeter(s)

In the lines below, explain how you determined your answer:

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Answers

Answer 1

Answer: In order to put a number into scientific notation, you multiply or divide the number by multiples of 10 until your base number is between 1 and 10 then you raise the number to the negative or positive exponent in the amount that you used to multiply or divide the number... Let me show you...

0.000000106 millimeter

Every time you multiply by 10, you move the decimal one place to the right. In this case if you multiply by 10 seven times, the decimal moves 7 places to the right. Now you have

1.06 ... but you can't just change a number so you have to show how your number is equivalent to the original number. You do this with the exponents. If you raise the new number to the -7 exponent, it shows you have to move the decimal 7 places to the left to expand to your original number. So the scientific notation would be...
1.06 × 10^-7

*note- if you move the decimal to the left you would have a positive exponent. If you move it to the right you'll have a negative exponent.

Answer 2

Answer: 0.000000106mm,

We move the decimal point from the left, until it gets to 1.06. And the point moves 7 times.

= 1.06 × 10⁻⁷ mm in scientific notation.

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The area of the quadrilateral shown is 252 square inches. What is the perimeter? (the width is 16.8 inches)

A. 61.8 inches
B. 31.8 inches
C. 63.6 inches
D. 67.2 inches

Answers

Answer:

The answer is 63.6 $in^2$

Step-by-step explanation:

In order to determine the area of the quadrilateral, we have to know the values of its sides. The area of the quadrilateral is:

$A=a*b$

a= length of the quadrilateral

b=width of the quadrilateral

We know the area and the width of the quadrilateral, so we can determine its length:

$252=a*16.8\na=(252)/(16.8)\na=15$

Then, the perimeter of the quadrilateral is:

P=2*a+2*b

P=2*15+2*16.8

P=63.6

Finally, the perimeter is 63.6 $in^2$

C. 63.6 inches

That is because to find the length of the quadrilateral do this since you already know the width of the polygon:

252/16.8 = 15

Now that we know the length do this since this is the formula to find the perimeter or for me I would just 2x:

2(16.8) + 2(15) =

33.6 + 30 = 63.6

The perimeter of the quadrilateral is 63.6 inches

1/8 is it greater or lesser than 1/4

Answers

1/8 is less than 1/4 because when it comes to solving this kind of problem (with fractions) if the numerators(the top numbers) are the same, the fraction with the higher denominator , is going to be less. Hope this helps! :)
Example: 1/2 is greater than 1/4.

for this question you should know that 1/4 is equal to 2/8 so now you can see that 1/8 is less than 2/8 so 1/8 is less than 1/4 :)))
i hope this is helpful
have a nice day

About 6/8 of the earths surface is covered by water. About what fraction of the earths surface is not covered by water?

Answers

8/8 - 6/8 = 2/8 =1/4
1/4 (25%) is the not amount
Hope that helped!

Colby and Jaquan are growing bacteria in an experiment in a laboratory. Colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. Jaquan has a different type of bacteria that doubles every 3 hours. How many bacteria should Jaquan start with so that they have the same amount at the end of the day?BTW I dont want bacteria formula

Answers

I assume here that the day here is the 24 period. This means that if the bacteria doubles every 2 hours, this will happen 12 times (24/2=12).

So Colby will have 50*2*2*2*2*2*2*2*2*2*2*2*2=50*4*4*4*4*4*4=200*4*4*4*4*4=800*4*4*4*4=3200*4*4*4=204800 bacteria.

if the bacteria doubles every 3 hours, this will happen 8 times (24/3=8).

So Jaquan will have

x*2*2*2*2*2*2*2*2=x*4*4*4*4=x*16*16=x* 256

So if we want so have the same amount:

204800=x*256
x=800

So he needs to start with 800.

I need to answer these for test corrections and it is due tomorrow can anyone help?

Answers

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What is a word or phrase used for a division problem

Answers

Division phrases:
-Divided by
-ratio of
-percent of

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