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
11111nata11111 [884]
3 years ago
11

A perfect square trinomial can be represented by a square model with equivalent length and width. Which polynomial can be repres

ented by a perfect square model
x2 – 6x + 9

x2 – 2x + 4

x2 + 5x + 10

x2 + 4x + 16
Mathematics
2 answers:
olchik [2.2K]3 years ago
5 0
From the given options, x^2 - 6x + 9 = (x - 3)^2 is a perfect square.
nikdorinn [45]3 years ago
5 0

Answer:

  Option A is the correct answer

Step-by-step explanation:

For a perfect square quadratic equation discriminant b²-4ac is zero.

<u>Option A</u>

    x²-6x+9, a = 1 , b = -6 and c = 9

    b²-4ac = 36 - 4 x 1 x 9 = 0

    Correct answer.

<u>Option B</u>

    x²-2x+4, a = 1 , b = -2 and c = 4

    b²-4ac = 4 - 4 x 1 x 4 = -12

    Wrong answer.

<u>Option C</u>

    x²+5x+10, a = 1 , b = 5 and c = 10

    b²-4ac = 25 - 4 x 1 x 10 = -15

    Wrong answer.

<u>Option D</u>

    x²+4x+16, a = 1 , b = 4 and c = 16

    b²-4ac = 16 - 4 x 1 x 16 = -48

    Wrong answer.

You might be interested in
Can you name some math terms starting with the letter "O" and give a short description of them?
likoan [24]
Obtuse angle

Operation

Order of operation
4 0
3 years ago
Read 2 more answers
PLEASE HELP FAST! 20 POINTS!!!
Sedbober [7]

Answer:

27%

Step-by-step explanation:

3/11 = 0.27272727

so about 27%

3 0
2 years ago
Read 2 more answers
A veterinarian wishes to compare the number of times race horses are reported to be lame during a 12‑month period, as compared w
cestrela7 [59]

Answer:

Step-by-step explanation:

Hello!

The objective of the veterinarian is to check if racing contributes to lameness in racing horses. To conduct a test the veterinarian should select at random two groups of horses, group one will be of racing horses and group two should be of not racing horses. Other than racing, all the other differences between the horses that may cause lame or resistance to lame should be controlled( confounding variables) such as age, breed, the number of weakly hours spent exercising, diet, obstacle-free environment, etc...

This type of study is an experimental design.

The experimental design is an analytic essay characterized by the fact that the investigator controls the study variable and the randomization of the samples. In which all the variables are controlled except the ones that you wish to study.

I hope it helps!

5 0
3 years ago
Kaylin buys a greeting card for $3.79. she then buys 4 postcards that all cost the same amount. the total cost is $5.11. how muc
Pie

Answer:

Step-by-step explanation:

Givens

Greeting Card = 3.79

Total Cost = 5.11

Post cards = x

Equation

Total Cost = Greeting Card + 4x

Solution

Substitute the gives into the equation

5.11 = 3.79 + 4x                       Subtract 3.79 from both sides

5.11 - 3.79 = 3.79 - 3.79 + 4x  Combine

1.32 = 4x                                  Divide by 4

1.32/4 = 4x/4

x = 33

Each post card costs 0.33 dollars

4 0
2 years ago
Determine the equation of the line passing through the point (0, -4), with a slope of m = 5
Vinvika [58]

The equation of the line is:

y + 4 = 5(x - 0) [point-slope form]

y = 5x - 4 [slope-intercept form]

<h3>How to Find the Equation of a Line?</h3>

Using the point-slope form, the equation of a line that has a slope of m, and passes through a point (a, b), can be written as: y - b = m(x - a).

Given the following:

Slope (m) = 5

Point on the line (a, b) = (0, -4)

Substitute m = 5 and (a, b) = (0, -4) into y - b = m(x - a)

y - (-4) = 5(x - 0)

y + 4 = 5(x - 0)

Or rewrite in slope-intercept form as:

y + 4 = 5x

y = 5x - 4

Learn more about the equation of a line on:

brainly.com/question/13763238

#SPJ1

6 0
2 years ago
Other questions:
  • Find the value of the underlined digit 6,493
    14·2 answers
  • Jonathan is making his favorite pasta dish. He serves his mom 1/12 of the pot of pasta and his brother 1/6 of the pot. How much
    14·2 answers
  • Calculate the perimeter of the rectangle
    7·1 answer
  • Using the given information, solve for X. What is the length of AB? What is the length of RS?
    8·1 answer
  • the graph below shows a scatter plot and a linear model of joanna’s height, in inches, for various ages. what is the best interp
    7·2 answers
  • Find the maximum rate of change of f at the given point and the direction in which it occurs. f(x, y) = 9 sin(xy), (0, 8)
    5·1 answer
  • Jim lost $55 in the stock market on seven consecutive days. How much money did Jim lose in all?
    9·1 answer
  • Abcd is a trapezium, calculate the area of abcd
    8·1 answer
  • Do these three segments make a right triangle? 16m, 30m, and 34m
    13·2 answers
  • Billy is hiking in Colorado. He walks eastward four miles, then turns $60$ degrees northward and walks six miles. How far is he
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!