Answer:
Step-by-step explanation:
-5 - 4 -1 4 11 20 31 subtracting:-
1 3 5 7 9 11 subtractiing:-
2 2 2 2 2
second row is 2 so the rule will contain n^2
so we can write the series as n^2 - 6 , n^2 - 8 , n^2 - 10 etc
the numbers are in arithmetical sequence with a1 = 6 and d = -2
so nth term of our sequence is n^2 - a1 + (n - 1)d = n^2 -2n - 6 + 2
= n^2 - 2n - 4 Answer
A relation can be a function if an x value is not paired with more than y-values.
The x and y values are flipped when finding an inverse.
So, if in the inverse function a y value is paired with more than one x values, this will mean that in the function an x-value was paired with more than one y-values.
Looking at the graph we can say that no y-value in the inverse is paired with more than one x values, so the original relation would be a function.
So the answer is TRUE
Answer: the answer is c
Step-by-step explanation: reflection across the x-axis
Numbers 8/9 and 47/70 are between 3/5 and 5/7
Step-by-step explanation:
- Step 1: Find the equivalent decimal expressions of all the given fractions to find which ones are between 3/5 and 5/7
3/5 = 0.6 and 5/7 = 0.71
Option 1 ⇒ 1/2 = 0.5
Option 2 ⇒ 3/7 = 0.43
Option 3 ⇒ 8/9 = 0.89
Option 4 ⇒ 19/35 = 0.54
Option 5 ⇒ 47/70 = 0.67
∴ 8/9 and 47/70 lies between 3/5 and 5/7
