1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Harman [31]
3 years ago
15

Plzzzzz help will give brain and points!!! Explain why a quadratic equation with a positive discriminant has two real solutions,

And why a quadratic equation with a negative discriminant has no real solution, And a quadratic equation with a discriminant of zero has one real solution.
Mathematics
1 answer:
NISA [10]3 years ago
5 0

Answer:

The given equation is -2x^2 = -8x + 8

This can be rewritten as 2x^2 - 8x + 8 = 0

Here the value of a =2, b = -8 and c = 8

Discriminant = b^2 - 4ac

Now plug in the above values in the discriminant, we get

= (-8)^2 - 4*2*8

= 64 - 64

= 0

Here the discriminant is 0, so we will get one real root.

The discriminant is equal to 0, which means the equation has one real number solution.

Hope this will helpful.

Thank you.

You might be interested in
Find the apothem and area of a square with a radius of 9.
Nonamiya [84]

Answer:

I think the answer is 18 square or 324.

Step-by-step explanation:

6 0
2 years ago
What’s the percent of change?<br> Original: 25<br> New: 18
soldier1979 [14.2K]

28% decrease

Solution:

Calculate percentage change

from V1 = 25 to V2 = 18

(V2−V1)|V1|×100

=(18−25)|25|×100

=−725×100

=−0.28×100

=−28%change

=28%decrease

7 0
3 years ago
Multiply (−4)(−2)(−5)<br><br> A. -40<br><br> B. -8<br><br> C. 8 <br><br> D. 40
wlad13 [49]
(-4)(-2)= 8
8(-5)= -40
Answer: -40
8 0
3 years ago
Help with math nation please!!!
MArishka [77]
A (x,-y). When you reflect over the x-axis, the y becomes negative
4 0
3 years ago
Which point is Not on a circle with a center of (0,0) and a radius of 10?
Burka [1]
It is A because the radius is 10 which means that if x=0 then y must equal 10. (0,5) would be inside of the circle. If this doesn't make sense graph the circle and the points and you'll see what I mean.
6 0
3 years ago
Read 2 more answers
Other questions:
  • If 2 lemons cost 15 since how many can be bought for 60 cents
    14·2 answers
  • A woodworker wants to earn at least $450 making and selling cabinets. He pays $125 for materials and works for 11 hours. Write a
    10·1 answer
  • Can anyone help me do the questions that are circled with red and you don't need to do the graphing calculator thing, please
    8·1 answer
  • The equation of the line of best fit of a scatter plot is y = 12x + 7. What is the slope of the equation? –12 –7 12 7
    5·2 answers
  • Find the values. Question 1. Thanks!
    15·1 answer
  • Evaluate a² + 2b when a = ⅘, and b = ⅖
    10·2 answers
  • Taking algebra (9th grade) pls helpp
    12·1 answer
  • Please help i can't figure this problem out​
    11·1 answer
  • HELP MEEEEEEE PLSSSS
    12·2 answers
  • Complete the square to rewrite the following equation. Identify the center and radius of the circle. You must show all work and
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!