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.

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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

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !