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
Please help me!!
nikitadnepr [17]

its the first one

Step-by-step explanation:

because per pertains to to x

8 0
3 years ago
WORD PROBLEM! Sally has 15 apples. She gives some of her apples to three friends. They each get the same amount. Sally now has 9
Roman55 [17]

Answer:

Each friend got 2 apples

Step-by-step explanation:

[original amount of apples]-[Apples Sally has after distribution] = [friends] x [number of apples]

Filling in the brackets, you get this equation.

15-9=3 x apples per friend

6=3 x apples per friend

2 = apples per friend

5 0
2 years ago
Read 2 more answers
THE WORLD'S SMALLEST GECKO IS 3/4 INCH LONG. AN ADULT MALE WESTERN BANDED GECKO IS 7 1/3 TIMES AS LONG. HOW LONG IS A WESTERN BA
Angelina_Jolie [31]

The answer to your question is

5 1/2

7 0
3 years ago
Let ​ x^2−12x=61 .​
Anuta_ua [19.1K]
The answer for the first blank is 36 and the answer for the second blank is 97.

To complete the square, we first take half of the value of b.  The value of b in this equation is -12; -12/2 = -6.

Next we square the value we just got: (-6)² = 36.

This is what we add to both sides of the equation, giving us:
x²-12x+36=61+36

Combining like terms on the right, we have
x²-12x+36=97
4 0
2 years ago
Read 2 more answers
you deposit $6,700 in a money market account that pays an annual interest of 3.3% the interest is compounded quarterly how much
Rufina [12.5K]

so it is compounded 4 times in a year in 4 years we can take it as 16 terms

a=6700(1+3.3/100)^16

a=6700(1+33/1000)^16

a=6700(1000/1000 + 33/1000)^16

a=6700(1.033)^16

a=6700*1.681144887891022

a=6700*1.6811

a=11263.23

4 0
3 years ago
Other questions:
  • What is the unit rate for 108 diapers for 25.18 dollars
    12·1 answer
  • Round 1.0334 to the nearest thousandth
    10·1 answer
  • How many solutions does the equation have 5(n-2)=5n-10
    11·2 answers
  • How to use implicit differentiation to find an equation of the tangent line?
    13·1 answer
  • State whether each equation is true or false 2(4+5)=13
    14·2 answers
  • What does the consumer price index measure?
    5·2 answers
  • How do you simplify 8x over 45
    11·2 answers
  • Here’s a graph of a linear function. Write the equation that describes that function. Express it in slope-intercept form.
    14·1 answer
  • For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 33 beats per minute, the mean of the l
    9·1 answer
  • Help help help help help help help help help help help help help help help help help help​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!