3 years ago

What if a quadratic equation has an imaginary number in it?.

1 answer:

8 0

In relation to quadratic equations, imaginary numbers (and complex roots) occur when the value under the radical portion of the quadratic formula is negative. When this occurs, the equation has no roots (or zeros) in the set of real numbers. ... The complex roots in this example are x = -2 + i and x = -2 - i.

You might be interested in

Information was collected on those who attended the opening of a new movie. The analysis found that 56 percent of the moviegoers

kherson [118]

Answer: 0.65

Step-by-step explanation:

Let A denote that moviegoers were female and B denotes that moviegoers were under age 25.

As per given we have,

P(A)=0.56 P(B)=0.26 P(A∩B)=0.17

Using formula ,

$P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\ P(A\cup B)=0.56+0.26-0.17=0.65$

Hence, the probability that a moviegoer is either female or under age 25 = 0.65

6 0

3 years ago

Can someone help me please

sveta [45]

Answer:

Step-by b

bbbbbbbb

-step explanation:

6 0

3 years ago

P(×)= x(2x + 1)- 6x-3 <br>Factorize p(×)

kherson [118]

Step-by-step explanation:

P(X)=2x²-5x-3 is in the form ax²+bx+c

Using quadratic equation

x={-b±√(b²-4ac)}/2a

x=3,-1/2

4 0

3 years ago

Helena lost her marbles. But then she found them and put them in 4 bags with m marbles in each bag. She had 3 marbles left over

madreJ [45]

She had 4m marbles in the 4 bags

So number of marbles that Helena has = 4m + 3.

6 0

4 years ago

Read 2 more answers

_____ - 10=0 what is the missing integer

EleoNora [17]

Answer:

Step-by-step explanation:

Any number subtracted by its self will be zero.

For example:

1-1=0

2-2=0

3-3=0

4-4=0...

6 0

3 years ago

Read 2 more answers