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
Oxana [17]
2 years ago
15

What are the solutions of the quadratic equation below ? x^2-8x+11

Mathematics
2 answers:
iragen [17]2 years ago
6 0
Here’s the answer hope it helps.

Viktor [21]2 years ago
4 0

Answer:

x = 4 ± \sqrt{5}

Step-by-step explanation:

to find the solutions equate the quadratic to zero

x² - 8x + 11 = 0 ( subtract 11 from both sides )

x² - 8x = - 11

solve using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 4)x + 16 = - 11 + 16

(x - 4)² = 5 ( take square root of both sides )

x - 4 = ± \sqrt{5} ( add 4 to both sides )

x = 4 ± \sqrt{5}

You might be interested in
In August Emily’s clothing store sold 460 shirts with the ration of short sleeve to long sleeve being 3:7. How many short sleeve
kiruha [24]

138 short sleve shirts

step 1) add up the ratio of short to long sleve shirts: 3 + 7 = 10

step 2) divide the total # of shirts by 10: 460 / 10 = 46

step 3) because you are finding how many short sleeve shirts are sold, you multiply 46 x 3 = 138 short sleave shirts

5 0
3 years ago
7. the perimeter of a triangle is 80cm. write and simplify an equation to solve for x.<br>​
Nady [450]

Answer:

X = 18

Step-by-step explanation:

(x+3)+(x+3)+(3x-16) = 80

5x-10 = 80

5x = 80+10

5x = 90

x = 90/5

x = 18

hope that helped!

3 0
3 years ago
Find the surface area of the prism.
Aleksandr [31]

Answer:

252m^2

Step-by-step explanation:

The formula for surface area of a rectangular prism is 2(hl)+2(hw)+2(wl).

we just plug in the values.

2(12 x 6) + 2(12 x 3) + 2(6 x 3)

= 2(72) + 2(36) + 2(18) then simplify

= 144 + 72 + 36

= 252

7 0
2 years ago
VIOLILICULPLICIT ய ப ப பபரை பாாாாாய ச
Debora [2.8K]
5. A set of rational numbers
3 0
4 years ago
Whats the answer for 55.78 +4.6
Katarina [22]
60.38 is the answer to this
3 0
4 years ago
Read 2 more answers
Other questions:
  • The temperature fell from 0 degrees to 6 3/5 degrees below 0 in 2 1/5 hours. What was the temperature change per hour?
    13·2 answers
  • A tackle box is a rectangular solid with sides of 15 in., 12 in., and 9 in. What is its volume?
    10·2 answers
  • Twice the sum of a number and 3 is equal to 2
    14·2 answers
  • A line has a slope of Negative three-fifths. Which ordered pairs could be points on a parallel line? Select two options.
    15·2 answers
  • Y = 5x-40<br> y-3x=-24<br> (Solve the system algebraically by any method and show work)
    13·1 answer
  • Class 9
    5·1 answer
  • Bob's Gift Shop sold 750 cards for Mother's Day. One salesman, Scarlett, sold 20% of the cards sold for Mother's Day. How many c
    10·1 answer
  • Solve 4z+6v=124z+6v=12 for vv
    9·1 answer
  • Which point best represents the solution to the
    12·1 answer
  • Jada made a scale drawing of a house. The scale of the drawing was 1 centimeter = 5 meters. What is the scale factor of the draw
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!