Calculate 6.25*10^6 - 4.73*10^6. Express your answer in scientific notation to 2 decimal places.
To express the difference in population between China and India in scientific notation, we can calculate the absolute value of the difference and express it using the appropriate power of 10.
China's population is approximately 1.45 * 10^9.
India's population is approximately 1.4 * 10^9.
To find the difference, we subtract the populations:
1.45 * 10^9 - 1.4 * 10^9 = 0.05 * 10^9
Since 0.05 is equivalent to 5 * 10^(-2), we can rewrite the difference as:
5 * 10^(-2) * 10^9
To simplify, we can combine the exponents:
5 * 10^(-2 + 9) = 5 * 10^7
Therefore, there are 5 * 10^7 more people living in China than in India, expressed in scientific notation.
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To subtract these numbers, we first need to make sure that they have the same exponent. Since both numbers are written in scientific notation, we can simply subtract the coefficients and keep the exponent the same.
6.25*10^6 - 4.73*10^6 = (6.25 - 4.73) * 10^6
= 1.52 * 10^6
So, the answer is 1.52 * 10^6 to 2 decimal places.
Platelets and red blood cells are components of the blood. A typical platelet and red blood cell have diameters of approximately 2.33*10^-6 m and 0.0000075 m, respectively. Which blood component has a bigger diameter, and approximately by how much?
To determine which blood component has a bigger diameter, we can simply compare the given diameters of the platelet and red blood cell.
The platelet has a diameter of approximately 2.33 * 10^(-6) m.
The red blood cell has a diameter of approximately 0.0000075 m.
To compare the diameters, we can simply convert them to the same units. Let's convert the diameter of the red blood cell from meters to scientific notation:
0.0000075 m = 7.5 * 10^(-6) m
From the comparisons:
2.33 * 10^(-6) m < 7.5 * 10^(-6) m
Therefore, the red blood cell has a bigger diameter than the platelet, and it is approximately 5.17 times larger.
China and India are the most populous countries in the world. China's population is approximately 1.45*10^9, while India's population is approximately 1,400,000,000. How many more people live in China than in India?
To find out how many more people live in China than in India, we need to subtract the populations of India from the population of China.
China's population is approximately 1.45 * 10^9.
India's population is approximately 1,400,000,000.
To perform the subtraction, we can convert 1.45 * 10^9 to standard notation:
1.45 * 10^9 = 1,450,000,000
Now, we can perform the subtraction:
China's population - India's population = 1,450,000,000 - 1,400,000,000
= 50,000,000
Therefore, there are 50,000,000 more people living in China than in India.
In scientific notation please.
Thank you Bot!!
To calculate the subtraction of two numbers expressed in scientific notation, we need to ensure that the exponents are the same. In this case, both numbers have an exponent of 6.
Here's how to solve it step by step:
1. Start by subtracting the coefficient (the number before the power of 10):
6.25 - 4.73 = 1.52
2. Next, keep the common exponent (6) and write down the new coefficient in scientific notation:
1.52 * 10^6
So, the answer to 6.25*10^6 - 4.73*10^6 expressed in scientific notation to 2 decimal places is 1.52 * 10^6.