What is the number 5.1 × 10^7 written in decimal notation? (1 point)

The number 5.1 × 10^7 written in decimal notation is 51,000,000.

What is the number 6.3 x 10^-4 written in decimal notation? (1 point)

The number 6.3 x 10^-4 written in decimal notation is 0.00063.

A wasp's stinger has an average length of 2.67 x 10^-3 meter long. What is this length in decimal notation? (1 point)

The length of a wasp's stinger, 2.67 x 10^-3 meter, in decimal notation is 0.00267 meter.

The number 5.1 × 10^7 in decimal notation is 51,000,000.

To write a number in decimal notation, we need to convert it from scientific notation. In scientific notation, the number is expressed as a coefficient multiplied by 10 raised to a certain power. In this case, we have 5.1 multiplied by 10 raised to the power of 7.

To convert this into decimal notation, we need to move the decimal point to the right by 7 places because the exponent is positive. After moving the decimal point, we get:

5.1 × 10^7 = 51,000,000

So, the number 5.1 × 10^7 written in decimal notation is 51,000,000.