The radius of a hydrogen atom is 0.0000000529177 of a millimeter. Express this number as an approximation.(1 point)
Responses
0.00000006
0.00000006
0.00000005
0.00000005
0.0000000053
0.0000000053
0.0000005
The approximation for the radius of a hydrogen atom is 0.00000005.
How many times is 4 × 104 larger than 2 × 102?(1 point)
Responses
200
200
20
20
2,000
2,000
2
To find out how many times 4 × 104 is larger than 2 × 102, we divide the two numbers:
(4 × 104) / (2 × 102) = 2 × 102 / 2 × 102 = 2.
Therefore, 4 × 104 is 2 times larger than 2 × 102.
whats the answer
The answer is 2.
At the end of fiscal year 2004, the federal debt of Country C is $278,560,125,000. What is the closest estimation of this amount? Express your answer in the form of a single digit times an integer power of 10.(1 point)
Responses
2.79 × 1011
2.79 times 10 superscript 11 baseline
3 × 10−11
3 times 10 superscript negative 11 baseline
3 × 1011
3 times 10 superscript 11 baseline
2 × 1011
The closest estimation of the federal debt of Country C is 2.79 × 10^11.
How many times less is 102 than 106? Express your answer as an integer power of 10.(1 point)
Responses
10,000
10,000
10−4
10 superscript negative 4 baseline
104
10 superscript 4 baseline
0.0001
To find out how many times less 102 is than 106, we divide the two numbers:
106 / 102 = 10^4 / 10^2 = 10^(4-2) = 10^2.
Therefore, 102 is 10^2 times less than 106. The answer is 10^2 or 100.