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
scoray [572]
3 years ago
10

Use the quadratic formula to solve the quadratic equation. SHOW ALL WORK. 2 −8+41 = 0

Mathematics
1 answer:
horsena [70]3 years ago
5 0

Answer:

Solving the equation x^2-8x+41=0 using quadratic formula we get x=4+5i \ or \ x=4-5i

Step-by-step explanation:

We need to solve the equation x^2-8x+41=0 using quadratic formula.

The quadratic formula is:

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

where a=1, b=-8 and c=41

Putting values in formula and finding x

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$\\$x=\frac{-(-8)\pm\sqrt{(-8)^2-4(1)(41)}}{2(1)}$\\$x=\frac{8\pm\sqrt{64-164}}{2}$\\$x=\frac{8\pm\sqrt{-100}}{2}$\\We \ know \ \sqrt{-1}=i\\x=\frac{8\pm10i}{2}\\x=\frac{8+10i}{2} \ or \ x=\frac{8-10i}{2}\\x=4+5i \ or \ x=4-5i

So, Solving the equation x^2-8x+41=0 using quadratic formula we get x=4+5i \ or \ x=4-5i

You might be interested in
Sub tract 13/15 -1/5
Arada [10]
It would be .6 repeating
6 0
3 years ago
Read 2 more answers
What go in the blank
s2008m [1.1K]

Answer:

inverse

Step-by-step explanation:

¬ is the symbol for not.  When we have not a  implies not b  we have a inverse

4 0
3 years ago
Solve the following inequality.<br><br> 9x−2&gt;43
kirill [66]

Answer:

x > 5

Step-by-step explanation:

Given

9x - 2 > 43 ( add 2 to both sides )

9x > 45 ( divide both sides by 9 )

x > 5

8 0
3 years ago
Darla bought 0.9 kilogram of red grapes and 0.35 kilogram of green grapes.
madam [21]

keep trying good luck to you

3 0
3 years ago
A case of water costs $3.80. If Safeway marks up the price 10%, what is the new price of the
anyanavicka [17]

Answer:

$4.18

Step-by-step explanation:

You take $3.80 and multiply by it .1 (turn 10% into a decimal by moving the decimal to the right two places).

This gives you .38

Then you add .38 to $3.80 which gives you $4.18.

5 0
3 years ago
Other questions:
  • Find the image of A(6, -4) after it is reflected over the line y=-2, then reflected over the line x=1
    10·1 answer
  • What is the inverse of the function below? f(x) = 5x - 2
    11·1 answer
  • What is 30percent 0f 110
    15·1 answer
  • If m∠1 = m∠2, then m∠1 is:
    9·1 answer
  • At McDonald’s, a cheeseburger has 1/10 pound of meat. A
    11·1 answer
  • What is 89/10 as a mixed number
    13·1 answer
  • Solution to this inequality? <br> 3(5+2n) &gt; 7 +10n<br> Please show work , Thank you
    7·2 answers
  • Which expression is equivalent to 2(3x + 4y + x)?
    5·1 answer
  • VERY DIFFICULT!! HELP NEEDED
    10·1 answer
  • Two cards are drawn from a well-shuffled deck of 52 playing cards. Let X denote the number of aces drawn. Find P(X = 1).
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!