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
Lesechka [4]
3 years ago
11

Need answer ASAP !!!!

Mathematics
2 answers:
aniked [119]3 years ago
7 0

Answer:

Step-by-step explanation:

y = ax² + bx + c

( - 6)²a - 6b + c = 0 ⇒ 36a - 6b + c = 0

( - 4)²a - 4b + c = 3 ⇒ 16a - 4b + c = 3

2²a + 2b + c = 0 ⇒ 4a + 2b + c = 0

A = \left[\begin{array}{ccc}36&-6&1\\16&-4&1\\4&2&1\end{array}\right] = - 96

A_{a} = \left[\begin{array}{ccc}0&-6&1\\3&-4&1\\0&2&1\end{array}\right] = 24

A_{b} = \left[\begin{array}{ccc}36&0&1\\16&3&1\\4&0&1\end{array}\right] = 96

A_{c} = \left[\begin{array}{ccc}36&-6&0\\16&-4&3\\4&2&0\end{array}\right] = - 288

a = \frac{A_{a} }{A} = \frac{24}{-96} = - \frac{1}{4}

b = \frac{A_{b} }{A} = - 1

c = \frac{A_{c} }{A} = 3

<em>y = - </em>\frac{1}{4}<em> x² - x + 3</em>

kondor19780726 [428]3 years ago
4 0

Answer:

y = -1/4x^2 - x + 3

Step-by-step explanation:

(-6,0)

(-4,3)

(2,0)

36a - 6b + c = 0

16a -4b + c = 3

4a + 2b + c = 0

c = -4a - 2b

36a - 6b - 4a -2b = 0

16a - 4b -4a - 2b = 3

32a -8b = 0

12a - 6b = 3

4a - b  = 0

4a - 2b = 1

b = -1

4a + 1 = 0

4a = -1

a = -1/4

c = 1 + 2 = 3

y = -1/4x^2 - x + 3

You might be interested in
The question is about square root
Thepotemich [5.8K]
The square root of 4 is 2, but I don't think there is a square root to ten. 
6 0
4 years ago
What is the least number number of acute angles a triangle can have
goldfiish [28.3K]
The smallest number of acute angles a triangle can have is 2
8 0
3 years ago
The equation y = 7x represents a proportional relationship. What is the constant of proportionality?
Assoli18 [71]

Answer: c. 7

Step-by-step explanation: it’s 7. I got that answer

3 0
4 years ago
F is on the bisector of angle BCD. Find the length of FD (with lines over FD)
Orlov [11]

Answer:

8n-2 = 6n+9

2n-2 = 9

2n = 11

n = 5.5

So C is correct

Let me know if this helps!

4 0
3 years ago
Marty says he would rather -$5 than $0 do you agree with marty
borishaifa [10]

Answer:

I dont Agree because Your Just Losing 5 dollars Rather Than Losing nothing

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Regrouping with fractions
    8·1 answer
  • Let n represent any integer.
    12·2 answers
  • Solve 2(7+8) and what can you add
    7·2 answers
  • The circumference of a tree stump is 37.5 inches. Which length, in inches, is closest to the diameter of the tree stump? A
    12·1 answer
  • Parker and Company pays Selma Stokes on a variable commission scale. In a month when Selma had net sales of $155,000, what was h
    10·1 answer
  • The table shows the grade, g, on a test when the number of problems, n, are correct. Write an equation to model this situation.
    14·2 answers
  • Graph the following systems of equations.<br> x+y=1<br> x-y&gt;3
    9·1 answer
  • Guided Practice
    12·1 answer
  • I need help ASAP <br> Plzs
    5·2 answers
  • PLEASE HELP ME SOLVE THE QUESTION BELOW
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!