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
Alina [70]
3 years ago
5

If using the method of completing the square to solve the quadratic equation x^2+17x+12=0x 2 +17x+12=0, which number would have

to be added to "complete the square"?
Mathematics
2 answers:
Ronch [10]3 years ago
7 0

Answer:

(x+7/2)=1/4​

Step-by-step explanation:

I got it on Khan Academy, trust me. It's right. I got it wrong because of the other answer here, so your welcome, but this is the correct answer, Khan Academy people.

umka2103 [35]3 years ago
6 0

Answer:

289/4

Step-by-step explanation:

x² + 17x + 12 = 0

x² + 17x = -12

Take half of the second coefficient, square it, then add the result to both sides.

(17/2)² = 289/4

x² + 17x + 289/4 = -12 + 289/4

(x + 17/2)² = 241/4

You might be interested in
A map scale is 1 cm :50Km.Two cities are 3.8cm apart .How many kilometers is it from on e city to the other
Gennadij [26K]
So what you do is you want to multiply
3.8 × 50=190km

6 0
3 years ago
The slope of graph below is shown? A-5/4 , B-5/4 , C-3/4, D-3?
olga nikolaevna [1]
Where’s the graph I don’t see it
7 0
3 years ago
The sum of 237 and six times the opposite of a number is 405. What is the number?
IgorC [24]
The number is 28.

The equation would be:

237 + 6(x) = 405

The problem states that 6 times the opposite of a number, however, since the number sign was not given, we do not know whether it is in a positive or negative form. So we leave it as only x.

237 +  6x = 405
6x = 405 - 237
6x = 168
6x / 6 = 168 / 6
x = 28

To check:

237 + 6 (28) = 405
237 + 168 = 405
405 = 405
8 0
3 years ago
Read 2 more answers
Right triangle ABC is shown below. Write an equation that can be used to determine the angle measure, in degrees, of angle DBC.
Dmitry [639]

Answer:

Step-by-step explanation:

5 0
3 years ago
Need help on number 2.
zaharov [31]
I don't know try guessing
5 0
3 years ago
Other questions:
  • All puppies are cute. how can i write this as a conditional?
    6·2 answers
  • Is 10,070 more than 70+10,000
    15·2 answers
  • Nancy is 5 years younger than her brother Stan. Last year she was twice as young as he was. How old is each of them now?
    12·2 answers
  • A carpenter charges $720 for 18 hours of work. She charges the same amount of money for each hour of work. Which table shows the
    9·1 answer
  • (x/2 - 3 1/3) - (x/4 - 1 2/3)
    13·1 answer
  • 30 points + Brainliest.<br> Answers are:<br><br> A. 6<br> B. 9<br> C. 12<br> D. 8
    11·1 answer
  • Mary drove at a constant speed of 60 miles per hour. How far would she travel if she drove for 4 hours?
    9·1 answer
  • Please help me with my work
    13·1 answer
  • La integral indefinida de la función h(x)=2x+5x4
    12·1 answer
  • The graph of F(x) shown below resembles the graph of G(x) = x4, but it has
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!