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
jok3333 [9.3K]
3 years ago
7

Solve 5x^2 - 7x+2 -0 by completing the square. What are the solutions?

Mathematics
1 answer:
trapecia [35]3 years ago
6 0

5<em>x</em>² - 7<em>x</em> + 2 = 0

5(<em>x</em>² - 7/5 <em>x</em>) + 2 = 0

5(<em>x</em>² - 7/5 <em>x</em> + 49/100 - 49/100) + 2 = 0

5(<em>x</em>² - 2 • 7/10 <em>x</em> + (7/10)²) - 49/20 + 2 = 0

5(<em>x</em> - 7/10)² - 9/20 = 0

5(<em>x</em> - 7/10)² = 9/20

(<em>x</em> - 7/10)² = 9/100

<em>x</em> - 7/10 = ± √(9/100)

<em>x</em> - 7/10 = ± 3/10

<em>x</em> = 7/10 ± 3/10

<em>x</em> = 10/10 = 1   or   <em>x</em> = 4/10 = 2/5

You might be interested in
I'm confused there is only i answer is it B or D?
Nataliya [291]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The table below shows the amount of money that Bonnie spent during her last trip to Target. Target Purchases Clothing $56 Grocer
padilas [110]
Its C.





.test test test test


3 0
4 years ago
Identify the graph of the inequality from the given description.<br> x is negative.
AveGali [126]
<span>Shaded region is when x is negative</span>

4 0
3 years ago
Which fraction has a repeating decimal as its decimal expansion?
Free_Kalibri [48]

Answer:

3/11

Explanation:

Out of all the options, 3/11 is the only one that has repeating decimal.

3/11 = 0.27272.....

7 0
3 years ago
Matching Functions
Ainat [17]

Answer:

Graph A → Equation A → Table B → Property D

Graph D → Equation B → Table A → Property B

Graph B → Equation C → Table C → Property E

Graph C → Equation D → Table E → Property A

Graph E → Equation E → Table D → Property C

Step-by-step explanation:

Graph A corresponds to equation A, x·y = 2, and Table B → Property D

xy = 2 has a vertical asymptote at x = 0, and a horizontal asymptote at y = 0

y = 2/x, when x = 0, y = ∞

Graph D corresponds to equation B, -\left |  x\right | + 1 which corresponds to table A → Property B

The domain extends from (-∞, ∞), and [1, -∞)

Graph B corresponds to equation C, -(x + 2)² which gives the values in Table C and Property E wich is a horizontal shift of 2 units left and a reflection across the x-axis

Graph C corresponds to equation D, (1/3)·x - 2, which gives the values on Table E and Property A

The y-intercept of (1/3)·x - 2 = (0, -2), and the x-intercept = (6, 0)

Graph E corresponds to equation E, x³ = y, which gives the values on Table D  Property C, y is x cubed

6 0
3 years ago
Other questions:
  • What is negative 14 minus 5
    11·1 answer
  • Use the model to write the equivalent fraction. The colored pieces show parts of the whole.
    14·1 answer
  • PLEASE HELP ASAP! I don’t know how to do this can someone please help.
    11·1 answer
  • At the beginning of the bake sale, mary set aside 2 pies for herself. karen then bought half of the remaining pies for her birth
    9·1 answer
  • A fitness instructor measured the heart rates of the participants in a yoga class at the conclusion of the class. The data is su
    13·1 answer
  • For brainliest please help!
    11·1 answer
  • Please answer the question
    12·1 answer
  • A scale drawing of a school bus has a scale of 1/2 inch to 5 feet. If the length of the school bus is 4 1/2 inches on the scale
    5·1 answer
  • Find x and y. <br><br> please help !
    10·1 answer
  • Use the square root property to solve the equation.x² = 36Select one:O A. (18)O B. {16}O C. {±6i}O D. {6}
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!