Answer:
Step-by-step explanation:
X=70... do u need an explanation?
1st option
{(3,0) e (0,9)}; {(2,0) e (0,-4)}; {(1,0) e (0,-5)}
see screenshot
sorry btw, no hablo espanol
Divide the price by the quantity to see what's a better deal.
4.25 / 5 = 0.85
So, for each apple it costs 85 cents.
6.56 / 8 = 0.82
So, for each apple it costs 82 cents.
So, the $6.56 for 8 pounds of apples is the better deal.
n is an integer, so 2n+1 is also an integer. 8s+1 is equal to the square of 2n+1, so it's a square number.
2n+1 is an odd integer for any value of n. The square of an odd integer is always an odd integer. Therefore 8s+1=(2n+1)² is odd.
8s+1 is an odd square number.