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
horrorfan [7]
3 years ago
13

Need help will give you a good rating us

Mathematics
1 answer:
vovikov84 [41]3 years ago
4 0

Answer:

\boxed{2\pm \frac{\sqrt{2}}{2}}

Step-by-step explanation:

2x^2-8x=-7

\sf Add \ 7 \ on \ both \ sides}.

2x^2-8x+7=-7+7

2x^2-8x+7=0

ax^2 +bx+c=0

\sf Apply \ quadratic \ formula.

a=2 \ \ \  b=-8 \ \ \ c = 7

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\frac{-(-8)\pm\sqrt{(-8)^2-4(2)(7)}}{2(2)}

x=\frac{8\pm\sqrt{64-56}}{4}

x=\frac{8\pm\sqrt{8}}{4}

x=\frac{8\pm2\sqrt{2}}{4}

x=2\pm \frac{\sqrt{2}}{2}

You might be interested in
Need your help please legitimately
Alenkasestr [34]

Answer:

hey

Step-by-step explanation:

did you find the answer

4 0
3 years ago
A rectangular prism is 7 centimeters long, 5 centimeters wide, and 4 centimeters tall. Which values are the areas of cross secti
VladimirAG [237]
Cross section is the area you make when you make a cut across a shape. In this case, the cut must be parallel to the base. Hence, the cut shape would be same to that of the base. The base's dimensions are 7 cm long x 5 cm wide. Thus, the cross section area is 35 square centimeters.
3 0
3 years ago
Read 2 more answers
Expression <br> (27)x/3 equivalent
Ludmilka [50]

Answer:9x hope it helps

Step-by-step explanation:

8 0
3 years ago
CAN SOMEONE PLEASE LOOK AT MY LAST QUESTION AND SEE IF ITS RIGHT PLEASE?!
daser333 [38]

Answer:

okay

Step-by-step explanation:

5 0
3 years ago
Mrs. Hargrove owes the doctor $34.56. she gives the clerk $50.00 What is the total amount of change Mrs.Hargrove should receive
Valentin [98]

Answer:

$15.44

Step-by-step explanation:

50 - 34.56 = 15.44

8 0
2 years ago
Read 2 more answers
Other questions:
  • Are Functions 1 and 2 the same? Explain. Function 1: y = 3(x + 5) Function 2: y equals three times x, plus 5.
    14·1 answer
  • !Will mark BRAINILEST! What's the type of function that represents this pattern??
    11·1 answer
  • A skateboarding ramp is 12 inches high and rises at an angle of 18 degrees. How long is the base of the ramp?
    8·2 answers
  • A circle with radius of 1  cm sits inside a 11 cm x 12 cm rectangle
    9·2 answers
  • How many factors for 25
    8·2 answers
  • I need help _______________________________________________________________________
    7·1 answer
  • If R is (-4,7) and S is (-2, 12), what is the component form of the vector RS?
    14·1 answer
  • I need help with the question attached
    13·2 answers
  • 14m - 9n + 2n -3(3m - 4)
    11·2 answers
  • If you roll a die twice, what is the probability of getting a number greater than 3 on both rolls?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!