Write 0.000000065 in scientific notation.(1 point)

Question

Responses

6.5 × 108
6.5 times 10 superscript 8 baseline

6.5 × 10−8
6.5 times 10 superscript negative 8 baseline

6.5 × 10−7
6.5 times 10 superscript negative 7 baseline

6.5 × 107

Answer 1

6.5 times 10 superscript 7 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 × 108
6.71 times 10 superscript 8 baseline

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

Answer 3

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 × 10−5
1.314 times 10 superscript negative 5 baseline

1.314 × 104
1.314 times 10 superscript 4 baseline

1.314 × 105
1.314 times 10 superscript 5 baseline

1.314 × 10−4

Answer 5

To find the number of times an average person blinks in a year, we can calculate:

Number of blinks per hour = 15
Number of blinks per day = 15 × 24
Number of blinks per year = 15 × 24 × 365

Calculating this gives us approximately 131,400 blinks per year.

In scientific notation, this is written as 1.314 × 10^5.

Answer 6

What is the number 5.9×105 written in decimal notation?(1 point)
Responses

5,900,000
5,900,000

590,000
590,000

0.000059
0.000059

5.90000

Answer 7

The number 5.9 × 10^5 written in decimal notation is 590,000.

Answer 8

What is the number 7.3×10^−8 written in decimal notation?(1 point)
Responses

0.00000007.3
0.00000007.3

0.0000000073
0.0000000073

730,000,000
730,000,000

0.000000073
0.000000073

Answer 9

The number 7.3 × 10^-8 written in decimal notation is 0.000000073.