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
Andreas93 [3]
3 years ago
15

Find the value of c that makes the expression a perfect square trinomial. x2 + 4x + c

Mathematics
1 answer:
masha68 [24]3 years ago
7 0

the value of c that makes the expression a perfect square binomial is c=4 .

<u>Step-by-step explanation:</u>

Here we have , an expression x2 + 4x + c or , x^2 + 4x + c . We need to find  the value of c that makes the expression a perfect square binomial. Let's find out:

We have ,  x^2 + 4x + c

⇒ x^2+4x+c

⇒ x^2+2(2)x+c

Now , we know that (a+b)^2=a^2+2(a)(b)+b^2

Comparing above equation  , to  x^2+2(2)x+c we get ;

⇒  x^2+2(2)x+c            { c=2^2  }

⇒  x^2+2(2)x+2^2

⇒  (x+2)^2

Therefore , the value of c that makes the expression a perfect square binomial is c=4 .

You might be interested in
John ran 6 2/3 miles last week he ran 1 1/3 miles each day how many days did he run
Murljashka [212]

6\frac{2}{3} = \frac{3(6) + 2}{3} = \frac{20}{3} miles

1\frac{1}{3} = \frac{3(1) + 1}{3} = \frac{4}{3} miles/day

\frac{20}{3} miles ÷ \frac{4}{3} miles/day

= \frac{20(miles)}{3} * \frac{3(days)}{4 (miles)}

= \frac{20(3) days}{3(4)} = \frac{20 days}{4} = 5 days

Answer: 5 days

4 0
3 years ago
Experimental verification of opposite side of parallelograms .
zloy xaker [14]
If you mean  proof that the opposite sides of a parallelogram are equal, you draw a diagonal then prove that the 2 triangles formed are congruent.
6 0
3 years ago
Marylou is blowing up a beach ball. The package says that the ball has a diameter of 12 inches. What is the volume of the beach
Pavlova-9 [17]

Answer:

Volume of a circle = approximatley 25.12

Step-by-step explanation:

1. Volume of a circle= 4/3*pi*radius

2. Radius equals 1/2 of diameter

3. 12/2=6

4. radius=6

5. 4/3*3.14*6=25.12

6. Volume of a circle = approximatley 25.12

5 0
3 years ago
What is the answer I’m not sure I’m right
trasher [3.6K]

Answer:

x=0

Step-by-step explanation:

If you combine like terms it is x^2 +6x -27=-27

x^2 +6x =0

x^2=0

x=0

3 0
3 years ago
Use a number line to solve 235-123
Tems11 [23]
The answer is 112 on the number line
7 0
2 years ago
Other questions:
  • 6 times the difference of a number x and 5 is 42. Write an equation that describes this situation. A) 6x + 5 = 42 B) 6x - 5 = 42
    12·1 answer
  • Help me pllzzz explain how this is solved theres an answer but idk how u get it
    13·1 answer
  • Find the unit rate kenny reads 5/8 pages in 2/3 minutes
    12·1 answer
  • What is the least number that 1/3 and 3/4 can be divided by
    13·1 answer
  • Which of the points plotted below satisfy the equation in the box? <br><br>Check all that apply.
    14·1 answer
  • Find the intersection points of the linear and quadratic functions shown below f(x)=2x-5 g(x)= x2+2x-21
    13·1 answer
  • Anyone know the answer to this?
    10·1 answer
  • HELP
    6·1 answer
  • Dallas was told to run around the perimeter of the high
    5·1 answer
  • At the beginning of the school year, 396 students attended the first football game. Attendance at the next was 505 students. Est
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!