Answer:
0.03
Explanation:
3e-2 is in scientific notation, also known as standard form. Used to write large or small numbers in another way. In the number 3e-2, the numbers are defined as follows:
3 = coefficient
e = 10 to the power of
-2 = exponent
The scientific notation 3e-2 is same as 3 x 10^-2 or 3 x 10-2. Thus, to get the answer to 3e-2 as a decimal, we multiply 3 by 10 to the power of -2.
= 3e-2
= 3 × 10-2
= 0.03
Answer:
4.24
Explanation:
First you find the mean of the data set, which is 7. Then to find standard deviation you have to follow the formula which tells you to subtract the mean from each number under the square root : √(2 - 7)^2 + (9 - 7)^2 + (10 - 7)^2 + (4 - 7)^2 + (8 - 7)^2 + (4 - 7)^2 + (12 - 7). Once you solve the parenthesis you square it, once you square it the negatives won't matter. That will leave you with this : √(25 + 4 + 9 + 9 + 25). The formula tells you to find the sum of those numbers (which is 72) then subtract one from how many numbers there are, 5 - 1 = 4, and divide your sum by that number. So 72 / 4 = 18. Then you find the square root of 18 and that becomes your answer.
C. The light bulb
Light is not a part of the flashlight and everything is working together to output light from the bulb
