1.Please express your answer in scientific notation.
(6.0 x 105) x (3.0 x 104) = (1 point)
18 x 1020
18 x 109
1.8 x 1020
1.8 x 1010
2. Please express your answer in scientific notation.
(5 x 10–2) ÷ (2 x 103) = (1 point)
2.5 x 10-5
2.5 x 10-1
25 x 101
25 x 102
3. Please express your answer in scientific notation.
(2.56 x 106) x (3.56 x 102) = (1 point)
9.1136 x 1012
91.136 x 108
9.1136 x 108
91.136 x 1012
4. In a recent year, the population of California was about 2.52 x 107 people. Its land area is about 4.05 x 105 km2. What was the average number of people per square kilometer? (1 point)
0.62 x 105
6.2 x 101
0.62 x 1014
6.2 x 109
Please give me the answers!!
You can use Symbol calculator and itll help you find the answers really fast :))))
symbolab . c om
Sorry, I cant do it for you since im doing School work also
but there you go bud :)
can you link it pls :) or maybe do it and tell me the answers? 🙏🏽
1. To multiply numbers expressed in scientific notation, you multiply the coefficients and add the exponents. So, (6.0 x 105) x (3.0 x 104) would be calculated as (6.0 x 3.0) x (105 x 104) = 18.0 x 109 = 1.8 x 1010.
Therefore, the correct answer is option D: 1.8 x 1010.
2. To divide numbers expressed in scientific notation, you divide the coefficients and subtract the exponents. So, (5 x 10–2) ÷ (2 x 103) would be calculated as (5 ÷ 2) x (10–2 ÷ 103) = 2.5 x 10-5.
Therefore, the correct answer is option A: 2.5 x 10-5.
3. Similar to question 1, to multiply numbers expressed in scientific notation, you multiply the coefficients and add the exponents. So, (2.56 x 106) x (3.56 x 102) would be calculated as (2.56 x 3.56) x (106 x 102) = 9.1136 x 108.
Therefore, the correct answer is option C: 9.1136 x 108.
4. To calculate the average number of people per square kilometer, you divide the population by the land area. So, (2.52 x 107) ÷ (4.05 x 105) would be calculated as (2.52 ÷ 4.05) x (107 ÷ 105) = 0.62 x 101.
Therefore, the correct answer is option B: 6.2 x 101.