the population of city a is 8.59×10^4. the population of city b is 3.2×10^3. select all of the values that…

the population of city a is 8.59×10^4. the population of city b is 3.2×10^3. select all of the values that show the difference in population of city a and city b.\n8.27×10^4\n5.39×10^1\n2.748×10^7\n82,700\n7.8×10^4 + 4.7×10^3

the population of city a is 8.59×10^4. the population of city b is 3.2×10^3. select all of the values that show the difference in population of city a and city b.\n8.27×10^4\n5.39×10^1\n2.748×10^7\n82,700\n7.8×10^4 + 4.7×10^3

Answer

Explanation:

Step1: Rewrite the numbers in standard form

City A population: $8.59\times10^{4}=85900$, City B population: $3.2\times 10^{3}=3200$.

Step2: Calculate the difference

$85900 - 3200=82700$.

Step3: Rewrite the difference in scientific - notation

$82700 = 8.27\times10^{4}$.

Step4: Check the last option

$7.8\times 10^{4}+4.7\times 10^{3}=78000 + 4700=82700=8.27\times 10^{4}$.

Answer:

A. $8.27\times 10^{4}$, D. $82700$, E. $7.8\times 10^{4}+4.7\times 10^{3}$