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
anastassius [24]
3 years ago
12

What is -2x^ -5x + 5 + 0 using quadratic formula

Mathematics
1 answer:
Mashutka [201]3 years ago
6 0

Answer:

x = -5 + √65/2 or

x = -5 - √65/2

Step-by-step explanation:

-2x² - 5x + 5 = 0

2x² + 5x - 5 = 0

Here,

a = 2

b = 5

c = - 5

Now,

Discriminant

<em><u>D = b² - 4ac</u></em>

<em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em>= (5)² - 4(2)(-5)

= 25 + 40

= 65

<u>D = 65 > 0</u>

Then,

x = -b +-√b² - 4ac/2a

x = -5 +-√(5)² - 4(2)(-5)/2(2)

= -5 +-√25 + 40/4

= -5 +-√65/4

= -5 +-√65/2

<em><u>x = -5 + √65/2 or x = -5 - √65/2</u></em>

You might be interested in
If one coin is flipped and then a second coin is flipped, what is the probability that both coins turn up tails? question 18 opt
Mademuasel [1]
First you find the probability of each coin turning up tails, then you multiply the two probabilities together:
1/2 x 1/2 = 1/4
4 0
2 years ago
Which point is the center of the circle?<br><br> A.point W<br> B.point X<br> C.point Y<br> D.point Z
shusha [124]

Answer:

The center of given circle is X.

Step-by-step explanation:

Given : Circle .

To find: Which point is the center of the circle?

Solution : The diameter of a circle subtends a right angle to any point on the circle is called center of circle .

Therefore, The center of given circle is X.

6 0
3 years ago
Read 2 more answers
Solve the equation. y + 6 = –3y + 26
Marina CMI [18]
The answer I think would be y = 5 let me know if I'm wrong
7 0
3 years ago
Read 2 more answers
Which of the following is the shape of a cross-section of the figure shown
Aliun [14]

Answer:

B. Pyramid

Step-by-step explanation:

3 0
3 years ago
Find the area of the shape below <br> Please help ASAP
kifflom [539]
Idk sowwy!!!!!!!!!!!
3 0
3 years ago
Other questions:
  • Find the product of the solutions of this equation 20x^2-39x+80=0
    5·1 answer
  • What is the second term of the sequence generated by the formula an = 3n?
    7·2 answers
  • What is the difference between (-58) and (+35) ?
    6·2 answers
  • Michael is 17 years older than John. In 4 years, the sum of there ages will be 49. Find Michaels present age.
    5·1 answer
  • What is 8,000,000,60,0000,53 expanded form
    7·1 answer
  • Simplify. -2xyz(xy 3yz)
    13·1 answer
  • Binh has to write an 8 page report. If he has written 3/4 of his report so far, how many pages has he written?​
    12·2 answers
  • 36. Write the triangle congruence criterion illustrated<br> by each pair of triangles.
    14·1 answer
  • Find the surface area of rectangular prism.<br> s=
    11·2 answers
  • Select the three problems below in which the solution would be a negative number.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!