multiply 4.82x10^12 and 3.2x10^4

5 answers

To multiply \( 4.82 \times 10^{12} \) and \( 3.2 \times 10^{4} \), you can follow these steps:

  1. Multiply the coefficients (the numbers in front): \[ 4.82 \times 3.2 = 15.424 \]

  2. Add the exponents of 10: \[ 10^{12} \times 10^{4} = 10^{12 + 4} = 10^{16} \]

  3. Combine the results: \[ 15.424 \times 10^{16} \]

For scientific notation, we typically express the coefficient as a number between 1 and 10. Therefore, we need to convert \( 15.424 \) to scientific notation: \[ 15.424 = 1.5424 \times 10^{1} \]

Now combine this with the \( 10^{16} \): \[ 1.5424 \times 10^{1} \times 10^{16} = 1.5424 \times 10^{17} \]

Thus, the final result is: \[ \boxed{1.5424 \times 10^{17}} \]

divide 4820000000000 and 32000

To divide \( 4,820,000,000,000 \) by \( 32,000 \), you can perform the calculation directly.

  1. Write the division: \[ \frac{4,820,000,000,000}{32,000} \]

  2. Simplify the numbers. You can cancel out the thousands from the numerator and the denominator: \[ \frac{4,820,000,000 \text{ (12 zeros)}}{32 \text{ (4 zeros)}} = \frac{4,820,000,000}{32} \]

  3. Now perform the division: \[ 4,820,000,000 \div 32 = 150,625,000 \]

So, the result of dividing \( 4,820,000,000,000 \) by \( 32,000 \) is: \[ \boxed{150625000} \]

the denseity of oxygen is 0.001429 grams per cubic cm. how is this number written in scientific notation?

To convert the density of oxygen, which is \( 0.001429 \) grams per cubic centimeter, into scientific notation, follow these steps:

  1. Move the decimal point to the right until you have a number between 1 and 10. In this case, move the decimal point three places to the right: \[ 0.001429 \quad \text{becomes} \quad 1.429 \]

  2. Count how many places you moved the decimal point. Here, the decimal was moved 3 places to the right, so we will use a negative exponent for the base 10: \[ 0.001429 = 1.429 \times 10^{-3} \]

Therefore, the density of oxygen in scientific notation is: \[ \boxed{1.429 \times 10^{-3}} \text{ grams per cubic cm.} \]