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
insens350 [35]
3 years ago
9

If using the method of completing the square to solve the quadratic equation

Mathematics
1 answer:
meriva3 years ago
3 0

Answer:

The number to add is (11/2)^2 = 121/4

Step-by-step explanation:

Here, we want to know the number that will complete the square

We rewrite the equation as follows;

x^2 + 11x = -30

x^2 + 11x + (11/2)^2 = -30 + (11/2)^2

x^2 + 11x + 121/4 = -30 + 121/4

You might be interested in
The dollar amount (d) that erin earns varies directly as the number of hours (t) that she works. if she earns $206.25 in 25 hour
Liono4ka [1.6K]
D=t*m
d=dollar amount
t=hours
m=how much she earns per hour

Plug in the first set of numbers
$206.25=(25hr)*m
the amount she earns per hour is
$206.25/25hr = m = $8.25 per hr

So

$264=t*$8.25
264/8.25 = t
t = 32 hr




7 0
4 years ago
What numbers can i add to get -2 and multiply to get 24
lawyer [7]
This would be no solution , there is none
6 0
3 years ago
The monarch butterfly population is estimated at 18,000. It decreased at a
Natasha_Volkova [10]

Answer:

I think, yes?

Step-by-step explanation:

6 0
3 years ago
Can a pair of lines be both parallel and perpendicular? explain
alina1380 [7]
No, the 2 lines can never ever be both parallel and perpendicular if I'm not mistaken. This is because a set of parallel lines will never touch each other at all. However perpendicular lines are two lines that meet up to get an angle of 90. You cannot have two lines that never touch and touch at the same time.
6 0
4 years ago
Read 2 more answers
Need helpppppp!!!!!!!!!!
KonstantinChe [14]

Answer: 12, 15, 11, 28

Explanation:

14. FC is half of AC so the length of FC is 12.

15. BD is 30 and half of that is BC or 15. AB and BC have same length so it is also 15.

16. ED and BE have same length so it is also 11.

17. BD is twice of AB so if AB is 14, BD will be 28.

Would appreciate a brainly <3

3 0
3 years ago
Read 2 more answers
Other questions:
  • Five friends go out to dinner together. The meal comes to $80. Each friend contributes the same amount of money to pay the bill.
    6·1 answer
  • What is 345,000 in expanded form
    10·1 answer
  • Solve using any method!<br> 5. x2 + 7x - 8 = 0
    8·2 answers
  • How do I use 3 7 12 2= 51
    6·1 answer
  • Which statement best describes the relationship between forces? (2 points)
    14·1 answer
  • If we were to rotate the following points E(-2,8) F(-6,1) and G(-9.4) 270 degrees CCW and reflect over the x axis, what would po
    14·1 answer
  • Solve for x in the following equation <br> 2^(8x-8)=4^7x
    15·1 answer
  • Write the equation of the line that has a slope of four and passes through the point 6,5
    7·1 answer
  • Please help on this!!!! Thanks!!
    15·2 answers
  • Factor the greatest common factor: −5k2 20k − 30. −1(5k2 − 20k 30) −5(k2 − 4k 6) −5k(k2 − 4k 6) −5(k2 4k − 6)
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!