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
Olegator [25]
4 years ago
5

Rewrite the equation by completing the square.x^2 −16x+63=0(x +{ })^2={ }

Mathematics
1 answer:
Elina [12.6K]4 years ago
7 0

Answer:

(x + 4) ^{2} + 47 = 0

Step-by-step explanation:

(x ^{2}  + 4 ^{2} ) - 4 ^{2}  + 63 = 0 \\ (x + 4) ^{2}  + 47 = 0

<em>W</em><em>h</em><em>e</em><em>n</em><em> </em><em>c</em><em>o</em><em>m</em><em>p</em><em>l</em><em>e</em><em>t</em><em>i</em><em>n</em><em>g</em><em> </em><em>squares</em><em>,</em><em> </em><em>basing</em><em> </em><em>on</em><em> </em><em>our</em><em> </em><em>equation</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>question</em><em>:</em>

  • <em>First</em><em> </em><em>square</em><em> </em><em>the</em><em> </em><em>half</em><em> </em><em>of</em><em> </em><em>1</em><em>6</em><em> </em><em>e</em><em>.</em><em>g</em><em> </em><em>(</em><em>1</em><em>6</em><em>÷</em><em>2</em><em>)</em><em>^</em><em>2</em><em> </em><em>=</em><em> </em><em>4</em><em>^</em><em>2</em>

  • <em>Add</em><em> </em><em>the</em><em> </em><em>result</em><em> </em><em>to</em><em> </em><em>x^2</em><em> </em><em>and</em><em> </em><em>subtract</em><em> </em><em>it</em><em> </em><em>with</em><em> </em><em>6</em><em>3</em><em> </em><em>e</em><em>.</em><em>g</em><em> </em><em>the</em><em> </em><em>second</em><em> </em><em>e</em><em>q</em><em>u</em><em>a</em><em>t</em><em>i</em><em>o</em><em>n</em>
You might be interested in
Can someone help me with this question please
Lunna [17]

Answer:

x <-8

Step-by-step explanation:

3-(2x-5) < -4(x+2)

Distribute

3 -2x+5 < -4x-8

Combine like terms

8 -2x < -4x-8

Add 4x to each side

8 -2x+4x< -4x-8+4x

8+2x < -8

Subtract 8 from each side

8-8+2x< -8-8

2x<-16

Divide by 2

2x/2 < -16/2

x <-8

4 0
3 years ago
Read 2 more answers
A researcher plans to identify each participant in a certain medical experiment with a code consisting of either a single letter
Digiron [165]

Answer:

at least 5

Step-by-step explanation:

<u><em>If the question was similar to the one given below </em></u>

A researcher plans to identify each participant in a certain medical experiment with a code consisting of either a single letter or a pair of distinct letters written in alphabetical order. What is the least number of letters that can be used if there are 12 participants, and each participant is to receive a different code?

<em><u>The answer would be as follows</u></em>

If we use 3 letters or any distinct letter as a comma such that 2 are in alphabetical order then we would get

4C2= 6 ways to use these letters and the comma

If we use 4 letters or any distinct letter as a comma such that 2 are in alphabetical order then we would get

5C2= 10 ways to use these letters and the comma

If we use 5 letters or any distinct letter as a comma such that 2 are in alphabetical order then we would get

6C2= 15 ways to use these letters and the comma

We need the least number of the alphabets to assign codes to 12 participants.

So the least number of alphabets is 5 because it can give codes to at least to  12 people .

Pair of alphabets + distinct letter ≥ 12

5 + 1  ≥ 12

6c2  ≥ 12

15  ≥ 12

3 0
3 years ago
The circumference of circle A is twice the circumference of circle B. Which statement about the areas of the circles is true?
Troyanec [42]
The area of circle-A is four times the area of circle-B .
8 0
3 years ago
Read 2 more answers
X\9=15/2 what is the answer
juin [17]

Answer:

x = 132/2 or x = 67 1/2

Step-by-step explanation:

hjdnnenenenenenehehhehehehebeb

7 0
4 years ago
What quadrants is the points (2,-3)?
zheka24 [161]

Answer:

Quadrant 4

there are four quantdrants, A is on the fourth one

4 0
3 years ago
Other questions:
  • naoya read a book cover in a single session, at a rate of 55 pages per hour. After 4 hours, he had 350 pages left to read.
    10·1 answer
  • In trei rezervoare sunt 1672 l de benzina dacã in primele doua rezervoare sunt 123100 cl iar in ultimele doua sunt 15 hl sa se a
    14·1 answer
  • Mathematics algebra 2
    11·1 answer
  • What's the answer to number two
    10·1 answer
  • Madison is saving nickels. She saves 1 nickel the first day, 2 nickels the second day, 3 nickels the third day, and so on for 15
    12·1 answer
  • Calculate the area of a circle with a radius of 16.9 centimeters.
    13·1 answer
  • Solve the system of equations Y=-2x+5 and y=x^2+3x+9
    9·1 answer
  • HELP ILL GIVE BRAINLIEST
    15·1 answer
  • HELP PLEASE! URGENT!
    9·1 answer
  • Find the midpoint of the line segment with end coordinates of: (-2, -4) and (2, -10)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!