4(x^2 - 1)(x - 3)(x + 3)^2 = 0
(x + 1)(x - 1)(x - 3)(x + 3) = 0
x = -1, 1, 3, -3
Answer:

Step-by-step explanation:
Let x be the number of minutes she can continue, since she's already 20 feet below the ocean surface and is diving at the rate of 20 ft/minute, her depth with respect to x would be
20 + 20x
But she doesn't want to reach more than 100 feet below the surface

Answer:
Step-by-step explanation: that is true
Option A is the answer
Since 29 + 39 = 68, the answer cannot be possible.
Essentially, any two sides of a triangle have to be greater than another side.
Answer: D) 6
Focus on the second equation given. The period of that equation is simply the value of b. Because b = 6, this means the period is 6. The function repeats itself every 6 units; in other words, the length of a full cycle is 6 units.