Which quadratic function has one real solution?

a.0 = 2(x + 7)(x – 5)
b.0 = (x – 3)(x – 3)
c.0 = 2.4(x – 2)(x + 2)
d.0 = (x – 2)(x – 1)

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?

Find the solution of each of the following.

If there are 3.281 feet in 1 meter, how many inches are in one centimeter