Which inequality is shown in the graph below.
1 answer:
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ANSWER
EXPLANATION
From the table,
There is a constant difference of
The sequence is therefore an arithmetic progression.
The general formula for the arithmetic progression is
We substitute the values into the formula to obtain,
We expand the bracket to obtain,
This simplifies to
EXPLANATION
From the table,
There is a constant difference of
The sequence is therefore an arithmetic progression.
The general formula for the arithmetic progression is
We substitute the values into the formula to obtain,
We expand the bracket to obtain,
This simplifies to
Answer: 7
Step-by-step explanation:
-if y is the width and the length of area k (see diagram), the difference between n and y is of 2 square sides, one at each side of y.
-therefore, assuming that n is a whole number and that there aren’t half squares, y must be a whole number too because, as previously said, n-y = 2 so y= n -2
-the only perfect square amongst the values for k you listed is 25, so taking n and y as whole numbers the only possible value for k is 25
-therefore y is 5 and n is 7 because n-y = 2 so y + 2 = n
