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
garik1379 [7]
2 years ago
13

What is the value of c such that x^2+14x+c is a perfect-square trinomial?

Mathematics
1 answer:
polet [3.4K]2 years ago
4 0

Answer: 49

Step-by-step explanation:

a=1 ,b=14, c=?

b^2-4ac =0

(14)^2-4(1)(c)=0

196-4c=0

196=4c

c=49

Check:

(x)^2+2(x)(7)+(7)^2

x^2+14x+49

(x+7)^2  

You might be interested in
What do you do when your mom is crying? probably not the best place to ask but im grounded so i cant ask on any other platform l
FromTheMoon [43]

Answer:

Ask her why she is crying. If she explains why, listen and comfort her. If she says to "go away" or "i don't want to talk about it," give her space and come back later. She needs to let it out, so have patience :)

Hope this helps!!

3 0
2 years ago
Read 2 more answers
What does it mean if two equations have no solution ?
Alex787 [66]

Answer:

this means there is no answer to the problem

Step-by-step explanation:

3 0
3 years ago
Justine answered 68 questions correctly on an 80-question test. Express this amount as a fraction,percent, and decimal.
kenny6666 [7]
He answered .85, 85% or 17/20 correct on the test.
5 0
3 years ago
Read 2 more answers
An SRS of size 20 is drawn from a population that has a normal distribution. The sample has a mean of 122.5 and a standard devia
Tems11 [23]

Answer:

The value is  \sigma_{\= x} = 1.789

Step-by-step explanation:

From the question we are told that

   The sample size is  n =  20  

    The sample mean is \= x = 122.5

    The standard deviation is  s =  8

Generally the standard error of the mean is mathematically represented as

       \sigma_{\= x} =  \frac{s}{\sqrt{n} }

=>    \sigma_{\= x} =  \frac{8}{\sqrt{20 } }

=>    \sigma_{\= x} = 1.789

8 0
3 years ago
12+7+5x in the expression above there are three terms- )
mina [271]
( 12 + 7) 5x = 95 so that's your answer
8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the area of a trapezoid, given bases 10.2cm and 12.2cm and side 12.6cm
    8·1 answer
  • Show that the sum of two concave functions is concave. Is the product of two concave functions also concave?
    6·1 answer
  • Finding the circumference, PLEASE HELP :C Ill give brainliest! 20 points!
    14·2 answers
  • What is the distance between (4, 5) and (-7, -4) round to the nearest 10th if necessary
    9·1 answer
  • Sophie Ruth is eating a
    12·1 answer
  • Please answer please
    9·1 answer
  • Is Andrew correct or incorrect explain
    5·2 answers
  • Tell whether each statement about the expression 5y + 9 is True or False
    13·1 answer
  • Help is appreciate it is for online Class and is very confusing ​
    6·1 answer
  • Among 43,592 in-hospital patients who had cardiac arrest during the day, 23,549 survived. Among 27,963 patients at night, 7,804
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!