If the discriminant of an equation is zero which of the folllwing is true of the equation?

one real solution

Step-by-step explanation:

Step-by-step explanation:

the discriminant of an equation, ax^2 + bx + c= 0 is

b^2 - 4ac

if b^2 - 4ac = 0

the equation will have equal roots therby being perfect

conclusion:

if the discriminant of an equation is zero

the answer is c)8

step-by-step explanaction:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560