A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. The power is the number of decimal places you move.

1) 2,700,000,000 = 2.7 x $10^{9}$

135,000,000 = 1.35 x $10^{8}$

$\frac{Neptune}{Mercury} = \frac{2.7*10^{9} }{1.35*10^{8}}$

You can see there is only one extra 0 on top, the rest will cancel so you have:

$\frac{27}{1.35} = 20$

It's 20x farther to Neptune from Earth, than it is to Mercury from Earth.

7 0

3 years ago

Use long division to convert the rational number 1/4 to its equivalent decimal form. In your final answer, include all of your w

nikdorinn [45]

1/4=25/100

Decimal is = .25

4 0

2 years ago

Jimmy’s family moved to a tropical climate. For the year that followed, he recorded the number of days that had a temperature ab

Phantasy [73]

The answer is 4) as it is more than 40 degrees

5 0

3 years ago

Adding and subtracting polynomials(6x² - 3x - 1) - (x + 8)​

Adding and subtracting polynomials(6x² - 3x - 1) - (x + 8)