8.9*10^9
2. Write the following number in scientific notation:
0.000631
it works with neg. spots too so here we move it 4 spots to get 6.31*10^(-4)
6.31*10^(-4)
3. Write the following number in standard notation:
7.2 x 10-4 here move the decimal 4 spots to the left since it is neg.
so .00072 not four zeros just spots
4. Write the following number in standard notation:
2.75 x 108
is that 10^8 if so it is 275000000.
5. Write the following number in standard notation:
8.9 x 10^9
here it is 8900000000.
HOPE YOU ARE GETTING IT
6. Multiply. Express the result in scientific notation:
(5 x 106)(6 x 102)
HERE YOU CAN MULTIPLY THE BEGING NUMBERS AND THEN ADD THE EXPONENTS OR THE NUMBER UP ABOVE THE 10^ SO 5*6=30 AND 10^6 WITH 10^2 GOES TO 10^8
Now your other number is not between 1 and 9.99999 so move the decimal to the left one and add 1 to the 8 to get 3.0 * 10^9
7. Multiply. Express the result in scientific notation:
(3 x 102)(2 x 102)
6.0*10^4 simple normal notation would be 60000
8. Explain how to write each number in scientific notation:
(a.) 0.00043
move the decimal to the right 4 spots to make the remaning number between 1 and 9.99999 and put a negative 4 in the exponent spot above the 10 to get 4.3*10^(-4)
(b.) 523.4 x 105
move it to the left 2 spots to get 5.234*10^2
10 ponts for the best answer.