Question

perform the following operations and give the answers in the correct number of significant figures. if the question is in scientific notation, then please use scientific notation in your answer. 1. 200.00 + 125.2 = 2. 12,020 + 6000 = 3. 0.003450 + 0.0140 = 4. 0.820 - 0.030 = 5. (240,900)(120.0) = 6. 340/12.5 = 7. (2.450 x 10^6)(2.0 x 10^6) = 8. (5.369 x 10^12)/(2.89 x 10^7) =

Explanation:

Step1: Perform addition for 200.00+125.2

$200.00 + 125.2=325.2$

Step2: Perform addition for 12020 + 6000

$12020+6000 = 18020$

Step3: Perform addition for 0.003450+0.0140

$0.003450+0.0140 = 0.01745$

Step4: Perform subtraction for 0.820 - 0.030

$0.820-0.030=0.790$

Step5: Perform multiplication for 240900×120.0

$240900\times120.0 = 28908000=2.8908\times 10^{7}$

Step6: Perform division for 340÷12.5

$340\div12.5 = 27.2$

Step7: Perform multiplication for $(2.450\times 10^{6})(2.0\times 10^{6})$

$(2.450\times 10^{6})(2.0\times 10^{6})=2.450\times2.0\times10^{6 + 6}=4.9\times 10^{12}$

Step8: Perform division for $(5.369\times 10^{12})\div(2.89\times 10^{7})$

$\frac{5.369\times 10^{12}}{2.89\times 10^{7}}=\frac{5.369}{2.89}\times10^{12 - 7}\approx1.86\times 10^{5}$

Answer:

1. $325.2$
2. $18020$
3. $0.01745$
4. $0.790$
5. $2.8908\times 10^{7}$
6. $27.2$
7. $4.9\times 10^{12}$
8. $1.86\times 10^{5}$