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
VikaD [51]
3 years ago
12

X squared -6x=7 for completing the square

Mathematics
1 answer:
Tcecarenko [31]3 years ago
8 0
Take 1/2 of linear coefient (-6), so 1/2 of -6 is -3
square it  (  (-3)^2=9)
add that to both sides
x^2-6x+9=7+9
x^2-6x+9=16
factor perfect square trinomial
(x-3)^2=16
sqrt both sides, remember to take positive and negative roots
x-3=+/-4
add 3
x=3+/-4
x=-1 or 7
You might be interested in
Just 1,2, and 3<br> I really need help
ioda
The correct answer for the question that is being presented above is this one: 

(1)
The triangle shows and equilateral triangle. Equilateral triangle has the same length of sides and angles.
60 = 1.5x
x = 40 degrees

7.1 = y + 3.4
y = 3.7 cm

(2) Isosceles Triangle
65 = 13x
x = 5 degrees

y + 2/3 = 7/8
y = 7/8 - 2/3
y = 21 - 16 / 24
y = 5/24 in

(3)
12 = x + 3.8
x = 8.2mm
6 0
3 years ago
I need help <br><br> Evaluate functions from their graph
andreev551 [17]

Answer:

g(7)=4

Step-by-step explanation:

We look for where x=7. The way you find the answer is first, find the point (0, 7). Draw a line straight up and down, and see where that line intersects the function. Those intersection points are your answer(there will always be only 1 for a function, but if a graph isn't a function, there might be more than 1).

Using this method here, we see that g(7) intersects our line at (7, 4), so g(7)=4.

6 0
3 years ago
Multiply the polynomials.
slavikrds [6]
<span>(x + 3)(x² – 6x + 5)= x³-6x²+5x+3x²-18x+15 =x³ -3x²-13x+15 Answer B</span>
4 0
3 years ago
Read 2 more answers
3. What is the equation in slope-intercept form of the line that passes through the
zavuch27 [327]
The Answer: y=1/4x+3
3 0
3 years ago
Hi please help me answer this!!
just olya [345]

The numbers that are irrational are B. √72 and D.√23.

<h3>What are irrational numbers?</h3>

Irrational numbers are those that have infinite numbers after the decimal. These numbers are also none repeating.

When the above are solved:

√25 = 5

√144 = 12

√23 = 4.79583152331...

√72 = 8.48528137424...

The only two numbers with non-repeating and infinite numbers are √72 and √23.

Find out more on irrational numbers at brainly.com/question/20400557

#SPJ1

7 0
1 year ago
Other questions:
  • Help!!! Equilateral, isosceles, or scalene
    13·2 answers
  • You earn $10.00hr. you invest $4,000.00 at an interest rate of 5% apr for a year. how much interest did that savings earn in a y
    7·2 answers
  • On the first play, the football team lost 6 yards. On the second play, the team lost 5 yards. What was their total change in yar
    9·2 answers
  • We're are the tutors omg ​
    15·2 answers
  • Find the coordinates of the vertices of the figure after the given transformation: T&lt;0,7&gt;
    15·1 answer
  • If A(x1, y1), B(x2, y2), (X3, Y3), and D(xx,ya) form two line segments, AB and CD, which condition needs to be met to prove AB I
    13·2 answers
  • Which equation represents a line parallel to<br> the line y = 3x - 2?
    5·1 answer
  • The area of a square region is 529 mi2. What is the perimeter of the​ region?
    11·2 answers
  • ILL MARK AS BRAINLEIST
    7·1 answer
  • Please help! the questions are in the photo.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!