Which of the following statements is NOT true regarding an expression written in scientific notation in the form of a x 10n ?
A.)The value of a must be greater than or equal to 1 and smaller than 10.
B.)The value of n must be an integer.
C.)Doubling n results in a doubling of the value of the expression.
D.)Doubling a results in a doubling of the value of the expression.
I think it is C...? Not positive
Here are the answers.
1. 4.22 x 10^-3
2. 7.08 x 10^-8
3. 6.1 x 10^-7
4. 1.25 x 10^-4
5. Doubling 'n' results in a doubling of the value of the expression.
6. 2.45 x 10^5
7. 3 x 10^3
correct
10^4 is not twice as big as 10^2
someone is 100% correct
noice
i agree with someone
so 1. D 2. A 3. A 4. B 5. C 6. B 7. A 100% correct thx @someone baa
To determine which statement is NOT true regarding an expression written in scientific notation in the form of "a x 10^n," let's go through each option:
A.) The statement says that the value of "a" must be greater than or equal to 1 and smaller than 10. This statement is correct because in scientific notation, "a" represents the significant digits, so it must be between 1 and 10.
B.) The statement claims that the value of "n" must be an integer. This statement is also correct because in scientific notation, "n" represents the power of 10 by which the significant digits are multiplied, and powers of 10 are whole numbers.
C.) The statement suggests that doubling "n" leads to a doubling of the value of the expression. It's important to understand that doubling "n" does not result in a doubling of the value but rather a multiplication of the value by a factor of 10. For example, if "n" were increased from 2 to 3, it would multiply the value by 10, not double it. However, the statement mentioned "doubling of the value," which is incorrect. Therefore, this statement is NOT true.
D.) The statement asserts that doubling "a" results in a doubling of the value of the expression. This statement is true because "a" represents the significant digits, so doubling it will indeed double the value of the entire expression.
Based on the analysis, the statement that is NOT true regarding an expression in scientific notation is C, which claims that doubling "n" leads to a doubling of the value of the expression.