carolyngeorgehp2yv4g
contestada

1)which of the following expressions is written in scientific notation?
A)73.4 X10^5
B)0.09X10^7
C)80X10^3
D)4.22X10^-3

2)which of the following is 0.0000000708 written in scientific notation?
A)7.08X10^-8
B)7.8X10^-8
C)708X10^-10
D)70.08X10^-9

3)which expression represents the largest number?
A)6.1X10^-7
B)4.1X10^-7
C)3.1X10^-8
D)5.1X10^-8

4)which expression is equal to 1/8000 written in scientific notation?
A)8.0X10^3
B)1.25X10^-4
C)125X10^-5
D)1.25X10^4
does anybody know :)

Respuesta :

henaadlakhap3tm5j
A1) Option D
A2) Option A
A3) Option A
A4) Option B

Answer:

1) The correct answer is option D.

2)The correct answer is option A.

3)The correct  answer is option A.

4)The correct  answer is option B.

Step-by-step explanation:

1) Scientific notation is defined mathematical representation used to to represent the a decimal number which present between 1 to 10 multiplied by 10 raised to power equal ti some integer. For example:

[tex]0.00051 =5.1\times 10^{-4}[/tex]

Hence, the correct option is D.

2) The scientific notation of number 0.0000000708.

0.0000000708 = [tex]708\times 10^{-10}=7.08\times 10^{-8}[/tex]

Hence,the correct answer is option A.

3)When the power of the number ten is in negative.

  • if the power is more negative number will be smaller.
  • If the power is less negative the number will greater.

Greatest number from the given option is [tex]6.1\times 10^{-7}[/tex]

[tex]6.1\times 10^{-7}>4.1\times 10^{-7}>5.1\times 10^{-7}>3.1\times 10^{-7}[/tex]

4) [tex]\frac{1}{8000}=0.000125[/tex]

[tex]\frac{125}{1000000}=1.25\times 10^{-4}[/tex]

Hence, the correct answer is option B.

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