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
lions [1.4K]
3 years ago
11

X^2-18x-6. complete the square ​

Mathematics
2 answers:
USPshnik [31]3 years ago
8 0

Answer:

(x - 9)² = 87

Step-by-step explanation:

Move the -6 to the other side

x² - 18x = 6

The number you add to each side is (b/2)²

(b/2)² is (-18/2)² = 81

x² - 18x + 81 = 87

(x - 9)² = 87

vlabodo [156]3 years ago
6 0

Answer:

(x-9)^2-87

Step-by-step explanation:

You might be interested in
Question 1<br> Let f(x) = 2x^2 - 3x - 4 and g(x) = x + 5. Find (fg)(x).
Scilla [17]

The function (fg)(x) is a composite function

The value of the function (fg)(x) is 2x^3 + 7x^2 - 19x - 20

<h3>How to determine the function (fg)(x)?</h3>

The functions are given as:

f(x) = 2x^2 - 3x - 4 and g(x) = x + 5.

To calculate (fg)(x), we make use of

(fg)(x) = f(x) * g(x)

So, we  have:

(fg)(x) = (2x^2 - 3x - 4) * (x + 5)

Expand

(fg)(x) = 2x^3 - 3x^2 - 4x + 10x^2 - 15x - 20

Collect like terms

(fg)(x) = 2x^3 - 3x^2 + 10x^2 - 4x - 15x - 20

Evaluate

(fg)(x) = 2x^3 + 7x^2 - 19x - 20

Hence, the function (fg)(x) is 2x^3 + 7x^2 - 19x - 20

Read more about composite function at:

brainly.com/question/10687170

7 0
2 years ago
Which ratio is greater than 5/8 , A. 12/24 B. 3/4 C. 15/24 D.4/12
-Dominant- [34]

Answer:

B. 3/4

Step-by-step explanation:

5/8  Get a common denominator of 24

5/8 *3/3 = 15/24

A. 12/24  this is less than

B. 3/4 *6/6 = 18/24  greater than

C. 15/24  same value so equal to

D.4/12 * 2/ = 8/24  less than

4 0
3 years ago
Read 2 more answers
Use the inverse of this function to select the correct graph.
xxTIMURxx [149]

Answer:

D

Step-by-step explanation: (i know this part. its the graph im a tiny bit unsure about)

x __ y

2  __2

3  __ 2.387

7__ 3

3 0
3 years ago
Mary is making some shirts for her school’s drama department. De fabric store has three and one sixths yards of the fabric she w
Keith_Richards [23]
6 and one third. Hope this helps!
4 0
3 years ago
Which graph represents a function that is decreasing at a nonconstant rate?
Tasya [4]

Answer: C

since the line isn't straight, the slope/function is decreasing but not at a constant rate

3 0
3 years ago
Other questions:
  • 10+x=19 need your help
    7·2 answers
  • Find the quotient 1/5 divided by 2
    12·2 answers
  • Help me with algebra homework.
    11·1 answer
  • What’s the correct answer for this question?
    9·1 answer
  • Jguegsfwnobugrgeaneoengioi
    15·1 answer
  • The image shows a quadrilateral inscribed in a circle. Select ALL true statements.
    15·1 answer
  • The permimeter of the rec
    7·1 answer
  • Explain how you would find 36x 5/6<br> mentally.
    10·2 answers
  • Ginger wants to join a gym. She goes to the local gym and is told that there is a one-time fee of $100 to join and then a monthl
    9·1 answer
  • 6/7*(11/18-5/12) pls help: fraction form, please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!