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
Finger [1]
3 years ago
11

2.) What value for c will make the expression a perfect square trinomial?

Mathematics
2 answers:
andre [41]3 years ago
6 0

Answer : \frac{49}{4}

Given expression is x^2 - 7x + c

To make perfect square trinominal we use completing the square method

In completing the square method we add and subtract the half of square of coefficient of middle term

Here coefficient of middle term is -7

Half of -7 is \frac{-7}{2}

Square of \frac{-7}{2} is (\frac{-7}{2})^2 = \frac{49}{4}

So the expression becomes x^2 - 7x +  [tex] \frac{49}{4} that gives perfect square trinomial

Hence , the value of 'c' is \frac{49}{4}


kirill115 [55]3 years ago
6 0
49/4 is the answer :)))
You might be interested in
Explain the the mistake in the student work
jeka94
He needed to divide instead of subtracting it on the last step.
3 0
3 years ago
Simplify the expression 6h+​(−8.7d​)−13+6d−3.3h.<br> 6h+​(−8.7d​)−13+6d−3.3h=
mezya [45]

Answer:

 -2.7d+2.7h-13

6 0
3 years ago
A school marching band 200 members , there are 50 bad members who play bras instuments
Maurinko [17]

Answer: um i don’t know what your asking me?

Step-by-step explanation:

7 0
3 years ago
The temperature for 5 days is shown in the table. If on the 6th day the temperature is 83, by how much will this increase the ov
laila [671]

Answer:

I cant see the table

Step-by-step explanation:

4 0
2 years ago
Please help me!! Lots of love!!
Marizza181 [45]

Answer:

D) 2

Step-by-step explanation:

write 8 in exponential form which is 2^3

now simplyfy the root which equals 2

2 is the answer.

4 0
2 years ago
Other questions:
  • Find the volume of the parallelepiped determined by the vectors a, b, and c. a = 1, 3, 2 , b = −1, 1, 5 , c = 4, 1, 3 in cubic u
    7·1 answer
  • Manuel needs to save more than $75 for a class trip. He already has $24 and
    5·1 answer
  • Which one is it please help
    7·1 answer
  • Find (f/g)(x) for the following functions. f(x)= 18x3 - 7x2 + 5x-3; g(x)= -9x2 -2
    6·2 answers
  • The table shows values of a function f (x) . HELP
    5·1 answer
  • One more question on this test guys. please answer as fast as possible. If you do,
    10·1 answer
  • 18 questions answered correctly on a test. that is 75% of the total number of questions. How many questions were on the test?
    15·1 answer
  • A standard showerhead in Reyna's house dispenses 9 gallons of water per minute. Reyna changed this showerhead to an energy-savin
    5·1 answer
  • Plssss help 20 points plssa<br> If K Mis the perpendicular bisector of JL, find x.<br> Plsss
    13·1 answer
  • What is the answer for this question plz help
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!