If the discriminant of an equation is positive, which of the following is true of the equation?

1 answer:

3 0

D>0 that means it has two real solutions (unequal).
It can have one solution only if D=0 and complex solutions only if D<0. 

D means discriminant

Answer: B it has two real solutions

hope this helps :)

You might be interested in

Help needed!

Jet001 [13]

Answer:

15 inches

Step-by-step explanation:

The ratio of sides in 30º-60º-90º triangle is:

a : b : c = 1 : √3 : 2

If a is 5√3, the length of b is:

b = a√3 = 5√3 *√3 = 5*3 = 15

7 0

2 years ago

Question 12 (1 point) Given P(A) 0.34, P(A and B) 0.27, P(A or B) 0.44, what is P(B)? Answer in decimal form. Round to 2 decimal

Tema [17]

Answer: The required probability of event B is P(B) = 0.37.

Step-by-step explanation: For two events A and B, we are given the following probabilities :

P(A) = 0.34, P(A ∩ B) = 0.27 and P(A ∪ B) = 0.44.

We are to find the probability of event B, P(B) = ?

From the laws of probability, we have

$P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\\Rightarrow 0.44=0.34+P(B)-0.27\\\\\Rightarrow 0.44=0.07+P(B)\\\\\Rightarrow P(B)=0.44-0.07\\\\\Rightarrow P(B)=0.37.$