Which function has exactly three distinct real zeros? a. h(x)=(x-9)²(x-4)²
b. h(x)=x(x+7)²
c. h(x)=(x-3)(x+1)(x+3)(x+8)
d. h(x)=(x-2)²(x+4)(x-1)

Consider the reaction 2x2y2+z2⇌2x2y2z which has a rate law of rate= k[x2y2][z2] select a possible mechanism for the reaction.

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?

Which statement shows that 6.24 is a rational number? a. 6.24 = 6.242424 b. 6.24 = 6.24 c. 6.24 = 68⁄33 d. 6.24 = 66⁄25