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Greeley [361]
3 years ago
9

Which number is written in scientific notation

Mathematics
2 answers:
I am Lyosha [343]3 years ago
5 0
A and B.
____________
vagabundo [1.1K]3 years ago
4 0

Answer:

1) Option A - 4.5\times 10^{-3}

2) Option B - 1.997\times 10^{2}

Step-by-step explanation:

1) To find : Which number is written in scientific notation ?

Solution :

Scientific number is a way of writing very large or small numbers.

The notation is represented as one number before decimal times 10 to the powers.

From the options,

A) 4.5\times 10^{-3}

B) 14.5\times 10^{2}

C) 0.78\times 10^{-6}

D) 5.7\times 4^{8}

The correct way of writing number in scientific notation is 4.5\times 10^{-3}

Therefore, Option A is correct.

2) To find : Which number is greatest ?

Solution :

The greater is the power of 10 the greater is the number.

From the options,

A) 2.89\times 10^{-8}

B) 1.997\times 10^{2}

C) 8.9\times 10^{-6}

D) 0.5\times 10^{-6}

The greater power is 2 rest all are negative so 1.997\times 10^{2} is greatest number.

Therefore, Option B is correct.

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