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
lozanna [386]
3 years ago
9

What is the line of symmetry for the parabola whose equation is y = x2 - 12x + 7?

Mathematics
1 answer:
Pavel [41]3 years ago
3 0

Answer:

x = 6

Step-by-step explanation:

Please write this as  y = x^2 - 12x + 7 to indicate the exponentiation.

The coefficients of these three terms are a, b and c:  1, -12 and 7.

The equation of the axis (line) of symmetry is

        -b           -(-12)

x = ---------  =  -----------  = 6

         2a           2(1)

You might be interested in
Lisa paid 43.95 for 16.1 gallon of gasoline. What was that cost per gallon rounded to the nearest hundredth
djverab [1.8K]

Answer:

2.73

Step-by-step explanation:

It is given that Lisa paid 43.95 for 16.1 gallons of gasoline.

So, the cost of 16.1 gallons of gasoline is 43.95.

Hence, the cost of gasoline per gallon is 43.95/16.1 = 2.7304347.

Now, it is required to round this value to the nearest hundredth.

Therefore, the cost of gasoline per gallon rounded to the nearest hundredth is 2.73. (Answer)

3 0
3 years ago
Sayuri's Asian Café makes the best pot stickers in town. The kitchen's production is usually between 20 and 22 pot stickers per
suter [353]
The answer is  day 6 because the kitchen s production is now 50 pot stickers per hour.So  it went up , which makes a good/positive impact on production.
 
6 0
3 years ago
Read 2 more answers
What is the value of K?
Ksju [112]
Answer: The value of k for which one root of the quadratic equation kx2 - 14x + 8 = 0 is six times the other is k = 3.
Let's look into the solution step by step.

Explanation:

Given: A quadratic equation, kx2 - 14x + 8 = 0

Let the two zeros of the equation be α and β.

According to the given question, if one of the roots is α the other root will be 6α.

Thus, β = 6α

Hence, the two zeros are α and 6α.

We know that for a given quadratic equation ax2 + bx + c = 0

The sum of the zeros is expressed as,

α + β = - b / a

The product of the zeros is expressed as,

αβ = c / a

For the given quadratic equation kx2 - 14x + 8 = 0,

a = k, b = -14, c = 8

The sum of the zeros is:

α + 6α = 14 / k [Since the two zeros are α and 6α]

⇒ 7α = 14 / k

⇒ α = 2 / k --------------- (1)

The product of the zeros is:

⇒ α × 6α = 8 / k [Since the two zeros are α and 6α]

⇒ 6α 2 = 8 / k

⇒ 6 (2 / k)2 = 8 / k [From (1)]

⇒ 6 × (4 / k) = 8

⇒ k = 24 / 8

⇒ k = 3
6 0
2 years ago
Using the defects method, which of these relationships represents the Law of Cosines if the measure of the included angle betwee
horrorfan [7]
Asked and answered elsewhere.
brainly.com/question/1410592

_____
Google doesn't recognize the terms "defects method" except in association with various postings of this same problem.
4 0
3 years ago
F(x)=-4x^2+7x+6 how do you work this
Ainat [17]

There actually isn't anything to 'work'.  There's no question there.

The function simply describes the relationship between two numbers.

It says that whatever you pick for the first number, the second number is

    (-4 times the square of the first one) plus (7 times the first one) plus (6) .

Your teacher may have assigned you something to do with the function,
like draw the graph of it, or find its maximum value (2.9375), or find where
it crosses the x-axis (2.381 and -0.63) or the y-axis (6).

But we can't tell what you've been assigned to do with it.  The function alone,
just as you've posted it, isn't asking a question, and doesn't call for any work.


7 0
3 years ago
Other questions:
  • Round to the nearest hundredth.
    11·1 answer
  • Describe the steps you would use to factor 2x^3+5x^2-8x-20 then state factored form
    15·2 answers
  • Which system of linear inequalities is represented by the<br> graph?
    11·2 answers
  • Plz help my with this!
    10·1 answer
  • What is 20 percent of 500
    13·2 answers
  • Hey. My teacher asked for homework we review the order of operations. What are they?
    11·2 answers
  • Help! It's geometry. :) 35 points.
    11·2 answers
  • What is the area of this parallelogram
    9·1 answer
  • Calculate the mean, median, and mode. help ??<br> 72, 74, 63, 74, 82, 63, 74, 60, 75, 83
    11·2 answers
  • Work out the value of each expression if x=4 and y=6<br> i 3x+9 ii 4x-y
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!