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
NeX [460]
4 years ago
7

Solve the following equation using the quadratic formula

Mathematics
1 answer:
Anarel [89]4 years ago
7 0

Answer:

A

Step-by-step explanation:

The quadratic formula is x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}. Here a=1, b=-8, and c=97.

Substitute and you'll have:

x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} =\frac{8+/-\sqrt{-8^2-4(1)(97)} }{2(1)}=\frac{8+/-\sqrt{64-388} }{2)}

\frac{8+/-\sqrt{-324} }{2}=\frac{8+/-18i }{2}=4+/- 9i

You might be interested in
225% of what number is 81
Airida [17]
To find a percentage of a number we multiply the percentage times the number and get the result, here we have the percentage and the result and need to find out which number it corresponds to, lets write an equation to do so and keep in mind that the percentage itself can be written in a different way:
225% = 225 out of 100 = 225/100
So we have this equation, where we call x the number we are looking for:
<span>(225%)(x) = 81
</span>(225/100)(x) = 81
so we solve for x:
225x = 81*100 = 8100
x = 8100/225
x = 36
The original number is 36, hence 225% of 36 is 81
4 0
3 years ago
(6x+7) - (9x-5) HELP​
ycow [4]

Answer:-3x+12

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
bro y are whipipo so uxxgly like the be lookin like mayo sauce or sum lets pull an uno reverse card n make em fo through slaverr
Scorpion4ik [409]

Answer:uh what?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
18.
chubhunter [2.5K]
A bakers dozen is 12 which would be $0.41 for each cookie. If you meant 13, it would be $0.38. All you have to do is divide 4.94 by the amount of cookies
7 0
3 years ago
Can you PLEASE help with problem 4. (IF YOU KNOW IT)
Andru [333]
The total was $29. 
1. Write an equation. 24+(2.50*2)= x
2. Solve your equation using PEMDAS
       *2.5*2=5
       *5+24=
3. Simplify equation. 
   5+24=29
4 0
3 years ago
Other questions:
  • At Becky's Restaurant, 10 out of 25 customers order wheat rolls. The rest of the customers order cornbread. Which does NOT repre
    7·1 answer
  • Help!! Quadratic models! Will mark brainiliest!!
    8·1 answer
  • According to the rational root theorem, the
    13·2 answers
  • What is the equation of the quadratic graph with a focus of (1,3) and a directrix of y=1?
    11·1 answer
  • Angel has an action figure collection of 300 action figures. He keeps 267 of the action figures on his wall. What percentage of
    6·1 answer
  • If you have 2 dollars and 5 cents what do you do to find out how much you would have in a 5 days
    10·1 answer
  • Line A is represented by the equation given below:
    12·1 answer
  • Helppppppppppp , GIVING BRANLIEST
    10·1 answer
  • On a piece of paper, graph y = - 2x - 3. Then determine which
    10·1 answer
  • a local newspaper assigns a rating between 1 and 10 to every book and movie it reviews. Victor gathered data about five titles w
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!