1/0.00032
(4.23 x 10^-5)/432
2007-01-20 02:58:03 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The answer in the back of the book is
3.1 x 103 for the first one and
1.00 x 10^-7
2007-01-20 04:33:51 · update #1
Do the math, determine the # of sig figs and rewrite like # 1:
the answer is 3125 but the least # of sig figs is one place so your answer is a) 3000 (no decimal point)
or 3 x10^3
2007-01-20 03:06:39 · answer #1 · answered by lynn y 3 · 0⤊ 0⤋
Writing in scientific notation skill to particular the quantity as a particular of a ability of 10. for occasion, one hundred is 10^2 10,000 is 10^4 0.001 is 10^-3 Numbers that are actually not precise powers of ten are written as ok x 10^p the place ok is a quantity between a million and 10 and p is te ability of ten. The trick is to locate the 1st important digit and circulate the decimal factor in simple terms after it. This new quantity is fantastic. Then, divide the unique quantity by using ok and that's the flexibility of 10. A= 0.00608 ok = 6.08 A/ok = 0.001 (= a million/1000 = a million/ 10^3) = 10^-3 as a result A = ok x 10^-3 = 6.08 x 10^-3
2016-12-12 15:58:46 · answer #2 · answered by ricaurte 4 · 0⤊ 0⤋
Scientific notation is when you write a number with a single digit to the left of the decimal and multiple it by a power of 10.
1/0.00032 = 3125 = 3.125 x 10^3
(4.23x10^-5)/432 = 9.79 = 9.79 x 10^0
2007-01-20 03:06:32 · answer #3 · answered by TimmyD 3 · 0⤊ 0⤋