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mhuerta71001
30.03.2020 •
Mathematics
The area of Asia is about 44,600,000 square kilometers. The area of Europe is about 9.94 x 10^6 square kilometers. What is the combined area of Asia and Europe?
a. 1.44 x 10^6 square kilometers
b. 5.454 x 10^6 square kilometers
c. 1.44 x 10^7 square kilometers
d. 5.454 x 10^7 square kilometers
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Ответ:
d. 5.454 x 10^7 square kilometers
Step-by-step explanation:
Adding 4.46×10^7 to 0.994×10^7 we get 5.454×10^7.
___
Before you can add numbers in scientific notation, they must both have the same multiplier. Here, we can see that the area of Asia will be written with an exponent of 7, so we choose to write both numbers that way.
44,600,000 = 4.4×10,000,000 = 4.4×10^7
9.94×10^6 = (0.994×10)×10^6 = 0.994×10^7
The sum is (4.400 +0.994)×10^7 = 5.454×10^7.
Ответ:
Combined area is 5.454 × 10^7 km²
Step-by-step explanation:
Step 1: Find the combined area of Asia and Europe.Area of Asia = 44,600,000 km²
Area of Europe = 9,943,106 km²
⇒ Combined Area = 44,600,000 + 9,943,106
= 54,543,106 km²
Step 2: Convert to one significant figure.54,543,106 = 5.454 × 10^7 km² (Dividing and multiplying by 10^7)
Ответ: