Write 0.000000065 in scientific notation.(1 point) Responses 6.5 × 10−7 6.5 times 10 superscript negative 7 baseline 6.5 × 10−8 6.5 times 10 superscript negative 8 baseline 6.5 × 108 6.5 times 10 superscript 8 baseline 6.5 × 107

Answer 1

The number 0.000000065 in scientific notation is written as $6.5\times {10}^{-8}$.

So the correct response is: 6.5 × 10−8 (or 6.5 times 10 superscript negative 8 baseline).

Answer 2

The speed of light is about 671,000,000 miles per hour. How will you write this number in scientific notation?(1 point) Responses 6.71 × 10−3 6.71 times 10 superscript negative 3 baseline 6.71 × 103 6.71 times 10 superscript 3 baseline 6.71 × 10−8 6.71 times 10 superscript negative 8 baseline 6.71 × 108

Answer 3

To express 671,000,000 in scientific notation, we can write it as $6.71\times {10}^8$.

So the correct response is: 6.71 × 10^8 (or 6.71 times 10 superscript 8 baseline).

Answer 4

Suppose an average person blinks 15 times per hour. How many times does an average person blink in a year? Write the answer in scientific notation (Hint: 1 year = 365 days, 1 day = 24 hours).(1 point) Responses 1.314 × 10−4 1.314 times 10 superscript negative 4 baseline 1.314 × 105 1.314 times 10 superscript 5 baseline 1.314 × 104 1.314 times 10 superscript 4 baseline 1.314 × 10−5

Answer 5

To find the total number of times an average person blinks in a year, we start with the following steps:

1. Calculate the total number of hours in a year: $$1\text{ year}=365\text{ days}\times 24\text{ hours/day}=8,760\text{ hours/year}$$

2. Calculate the total number of blinks in a year: $$\text{Total blinks}=15\text{ blinks/hour}\times 8,760\text{ hours/year}$$ $$\text{Total blinks}=131,400\text{ blinks/year}$$

3. Convert 131,400 to scientific notation: $$131,400=1.314\times {10}^5$$

Thus, the total number of times an average person blinks in a year, written in scientific notation, is: 1.314 × 10^5 (or 1.314 times 10 superscript 5 baseline).

Answer 6

What is the number 5.9×105 written in decimal notation?(1 point) Responses 5,900,000 5,900,000 0.000059 0.000059 590,000 590,000 5.90000

Answer 7

To convert $5.9\times {10}^5$ into decimal notation, you move the decimal point 5 places to the right.

Starting with 5.9:

• Moving the decimal 5 places to the right gives us: $$5.9\to 590,000$$

Thus, $5.9\times {10}^5$ in decimal notation is 590,000.

So the correct response is: 590,000.

Answer 8

What is the number 7.3×10−8 written in decimal notation?(1 point) Responses 0.000000073 0.000000073 0.0000000073 0.0000000073 0.00000007.3 0.00000007.3 730,000,000

Answer 9

To convert $7.3\times {10}^{-8}$ into decimal notation, you move the decimal point 8 places to the left.

Starting with 7.3:

• Moving the decimal 8 places to the left gives us: $$0.000000073$$

Thus, $7.3\times {10}^{-8}$ in decimal notation is 0.000000073.

So the correct response is: 0.000000073.