The problem asks us to convert numbers written in scientific notation to standard form. We need to do this for the following numbers: 19) $2.45 \times 10^{-6}$ 20) $8.1 \times 10^8$ 21) $3.72 \times 10^{-4}$ 22) $5 \times 10^7$ 23) $4.6 \times 10^{-5}$ 24) $6 \times 10^0$

1. Problem Description

The problem asks us to convert numbers written in scientific notation to standard form. We need to do this for the following numbers:

19) $2.45 \times 10^{-6}$

20) $8.1 \times 10^8$

21) $3.72 \times 10^{-4}$

22) $5 \times 10^7$

23) $4.6 \times 10^{-5}$

24) $6 \times 10^0$

2. Solution Steps

To convert a number from scientific notation to standard form, we multiply the number by the power of

1

0. If the exponent is positive, we move the decimal point to the right. If the exponent is negative, we move the decimal point to the left.

19) $2.45 \times 10^{-6}$: Move the decimal point 6 places to the left. This gives us 0.

0

0

0

0

0

2

4

5. 20) $8.1 \times 10^8$: Move the decimal point 8 places to the right. This gives us 810,000,

0

0

0. 21) $3.72 \times 10^{-4}$: Move the decimal point 4 places to the left. This gives us 0.

0

0

0

3

7

2. 22) $5 \times 10^7$: Move the decimal point 7 places to the right. This gives us 50,000,

0

0

0. 23) $4.6 \times 10^{-5}$: Move the decimal point 5 places to the left. This gives us 0.

0

0

0

0

4

6. 24) $6 \times 10^0$: Since $10^0 = 1$, we have $6 \times 1 = 6$.

3. Final Answer

19) 0.00000245

20) 810,000,000

21) 0.000372

22) 50,000,000

23) 0.000046

24) 6