The inequality x^2-14x> 15 is equivalent to: (a) -3< x< 5(b) -1< x< 15(c) 3 < x < 5(d) x< -1 or x> 15 (e) x< 3 or x> 5 and explain why.

Hey!

Hope this helps...

x^2 - 14x > 15

x^2 - 15x - 15 > 0

(x + 1)(x -15) > 0

If we take a stance and say BOTH POSITIVE, we see

x > -1  OR  x > 15

In this case x > 15 is the dominating factor...

If we take a stance and say BOTH NEGATIVE, we see...

x < -1  OR  x < 15

In this case x < -1 is the dominating factor...

Now combine the 2 proven factors, we get...

x < -1 OR x > 15

So...

The answer is: D.) x<-1 or x>15

there will be 35 boys in each team. : )

hey seth! : )

i’m not 100% sure, but i think it’s b

hope this ya : p

miss u!

- nicole