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2 answers:
Answer:
Option B
Step-by-step explanation:
Given :
X : -4 -1 2 4 5
Y : 16 2 0.25 0.0625 0.03125
The graph is attached which shows it is exponential.
There is a decrease rate as shown
therefore, there is a constant rate of decay or decrease
Option B is correct i.e. it is exponential, there is a constant rate of decay or decrease.
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Answer:
Step-by-step explanation:
1. A number written in scientific notation has the following form:
Where is is a number between 1 and 10 but not including 10, and b is an integer.
2. The negative exponent indicates the number of places the decimal point must be moved to the left to obtain the number as a decimal number.
3. Keeping this on mind, you can know that: if the exponent of a number written in scientific notation indicates that the decimal point must be moved 5 places to the left and another number written in scientific notation indicates that the decimal point must be moved 2 places to the left, then the first number is smaller than the second one.
4. Therefore, you can arrange the numbers given in the problem as following: