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Nat2105 [25]
3 years ago
7

What is the value of the discriminant, b2 − 4ac, for the quadratic equation 0 = x2 − 4x + 5, and what does it mean about the num

ber of real solutions the equation has?
Mathematics
2 answers:
forsale [732]3 years ago
3 0
(-4)^2-4(1)(5)
16-4(1)(5)
16-4(5)
16-20
-4

The discriminant is negative so there are no real number solutions.
Nutka1998 [239]3 years ago
3 0

Answer:

<em>The discriminant is -4 so there is no real number solutions</em>

Step-by-step explanation:

100% edu

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Which of the following statements is true about points?
daser333 [38]
The answer of the question is the answer C.
4 0
3 years ago
Stacy has 3 collector's cards. She receives 2 more cards each week that she volunteers at the student center. Let x = the number
Zepler [3.9K]

Answer:

The equation that can be used to represent the total number of collector's card Stacy has in 'x' weeks is .

y = 3 + 2x

Completed question;

Stacy has 3 collector's cards. She receives 2 more cards each week that she volunteers at the student center. Let x = the number of weeks. Let y = the number of collector's cards. Write the equation that can be used to represent the total number of collector's card Stacy has in 'x' weeks.

Step-by-step explanation:

Given:

The number of cards she have initially = 3

The number of cards receive every week = 2

the number of week = x

the total number of collector's card after x weeks = y

The total number of collector's card will be equal to sum of the number of cards she had initially and the number of cards receive every week multiplied by number of weeks.

This can be written as;

y = 3 + 2x

Since there is no more details given in question as to what to derive;

we can conclude that;

The equation that can be used to represent the total number of collector's card Stacy has in 'x' weeks is .

y = 3 + 2x

In case any of the variables is given, simple substitution can be used to derive the other variable.

8 0
3 years ago
12x+3y=-9 <br><br>find y- intercept​
ivolga24 [154]

Answer:

3

Step-by-step explanation:

subtract 3y from both sides

add 9 to both sides

3y=12x+9

divide everything by 3

y=4x+3

y-intercept is 3

6 0
3 years ago
What is the solution for the equation?
Maslowich

Answer: the heck is that?

Step-by-step explanation:

6 0
3 years ago
Six theatre tickets cost £39.00. I want to take a group of 9 people to the threatre how much will they pay in total for the tick
zimovet [89]
It costs 39 for 6 tickets so decide 39 by 6

39 / 6 = 6.5

Each ticket costs 6.5
Multiply 6.5 by 9

6.5 * 9 = 58.5

Answer: 58.5
5 0
3 years ago
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