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sasho [114]
3 years ago
6

How many places do you need to move the decimal to the left to write the number below in scientific notation?

Mathematics
1 answer:
bonufazy [111]3 years ago
5 0

Answer:

A) 1.3*10¹

B)7*10⁰ - Actually I am not very sure if it is required to write 10⁰. I normally don't write 10⁰ (When I solve problems in physics if the answer for example is 7 I just write 7 not 7*10⁰). But if you check on Google 10⁰ has been mentioned

C)1.4*10¹

D)1.2*10¹

Step-by-step explanation:

For any number when you express it in a scientific notation, You should make sure that the number (for example : X) X which is going to be multiplied with a power of 10 (for example:10³,10⁴10¹⁰ etc), X should be between 1 and 10

This might sound very complicated so I can give you an example to simplify

Let's take 1.3*10¹

In this case X is 1.3

This means X*10¹

The number X is being multiplied with the power of 10(example:10¹,10²,10⁰,10⁹ ,etc) .In the above case X is being multiplied with 10¹.

Now this number X should be between 1 and 10.(Including 1)

Scientific notation= X*power of 10

where x>=1 & x<10

That is the explanation

Hope it helps

If you think my explanation is a bit complicated

you can ask me again

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Solve<br><img src="https://tex.z-dn.net/?f=%7B2x%7D%5E%7B2%7D%20%20%2B%208x%20-%201%20%3D%200" id="TexFormula1" title="{2x}^{2}
kramer

Answer:

x= ± 3\sqrt{2} /2 +2

Step-by-step explanation:

Use the formula ( b/2) ^2 in order to create a new term. Solve for x by using this term to complete the square.

x= ± 3\sqrt{2} /2 +2

4 0
1 year ago
Help please I’ll mark you brainliest
Vikki [24]
Wouldn’t it be the 7th root of 3? It’s a 30 60 90 triangle which means x=7 on that side so x on the bottom is the x root of three?
4 0
3 years ago
6000 divided by 30 simplified what is it
Katena32 [7]

Answer:

200

Step-by-step explanation:

6,000 divided by 30 is 200

5 0
3 years ago
A leaky faucet waste 3600 gallons of water per year.how many quarts does it waste per month
lianna [129]

There are 12 months in a year, so you need to divide 3600 by 12. 3600 / 12 = 300. The faucet wastes 300 gallons of water per month.

3 0
3 years ago
What is the smallest number which is one less than twice its reciprocal?
notka56 [123]

Answer:

The smallest number is x = -2

for which this statement holds !!

Step-by-step explanation:

Let as assume the number be x

then the number is one less than twice its reciprocal i.e,

x =  \frac{2}{x}  - 1

[ For solution refer to the attached file ]

  • Method used to solve quadratic equation is Splitting the middle term !!

7 0
3 years ago
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