Question

Express to the power of 10 : 0.00000000000000456 to two decimal place.​

Answer 1

Answer:

$4.56 \times 10 {}^{ - 15}$

Step-by-step explanation:

$sol {}^{n}$

0.00000000000000456

$=0.00000000000000456 \times \frac{10 {}^{15} }{10 {}^{15} }$

$= \frac{4.56}{10 {}^{15} }$

$= 4.56 \times 10 {}^{ - 15}$

Answer 2

Answer:

The "exponent" is

10

to some power, where the power indicates how many decimal positions the decimal point in the mantissa needs to be moved (to the right if the exponent is positive; to the left if the exponent is negative) to form the actual value of the number.

The mantissa for

0.00000054

is

5.4

and

it is necessary to move the decimal point

7

positions to the left from

5.4

to get the actual value; there fore the "exponent" portion is

10

−

7