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
marusya05 [52]
3 years ago
12

What is the value of c such that: x2 + 14x + c, is a perfect-square trinomial?

Mathematics
1 answer:
kkurt [141]3 years ago
3 0
Take 1/2 of linear coefient and square it
14/2=7
7^2=49
c=49
You might be interested in
Simplify the following expression. √14 / √18
3241004551 [841]
<span>√7/3 is the answer

hope this helps</span>
3 0
3 years ago
A set of a thousand numbers has a mean of zero.
Alona [7]

We want to find the mean of two elements in a set, given that we know the other elements of the set and the mean of the whole set.

The answer is: -490

-----------------------------

For a set with N elements {x₁, x₂, ..., xₙ} the mean is given by:

M = \frac{x_1 + x_2 + ... + x_n}{N}

Here we know that:

  • The mean of the set is 0.
  • The set has 1000 elements.
  • 998 of these elements are ones, the other two are A and B.

We want to find the mean of the values of A and B.

First, we can start by writing the equation for the mean:

\frac{1 + 1 + 1 + ... A + B}{1000}  = 0

We can rewrite this as:

1 + 1 + 1 +... + A + B = 0

And we have 998 ones, then:

1 + 1 + 1 +... + A + B = 998 + A + B = 0\\\\B = - 998 - A

Now we have B isolated.

With this, the mean of A and B can be written as:

\frac{A + B}{2}  = \frac{A - 980 - A}{2} = -490

So we can conclude that the mean of the other two numbers is -490.

If you want to learn more, you can read:

brainly.com/question/22871228

5 0
2 years ago
Wats the answer ~!!!!!!!
shtirl [24]
The answer is c. My dude good luck
6 0
2 years ago
Last one i promise... thank u to everyone who helped
Harlamova29_29 [7]
B...because there is no y intercept because of the 0,0 then you just turn the other one into a fraction and because the 1 is negitive the fraction is negitive
3 0
3 years ago
Which equation represents a line which is parallel to the line y = -x + 5?
ozzi

Answer:

2x + 3y = -21

Step-by-step explanation:

Parallel lines have same slope.

2x + 3y = -21

      3y = - 2x - 21

y = y = \dfrac{-2}{3}x-\dfrac{21}{3}\\\\y=\dfrac{-2}{3}x-7

7 0
2 years ago
Other questions:
  • Find the value of 5 2^ 3.
    6·1 answer
  • The term "between-subjects" refers to
    14·2 answers
  • ☆*☆=3x, if x is even and negative OR ☆*☆=4x, if x is odd. Following the rule above, what is the value of ☆ - 23 ☆?
    12·1 answer
  • What classification describes the resulting polynomial ? A .Quadratic trinomial B. Linear binomial C. Quadratic binomial D. Line
    7·1 answer
  • What is the value of (6a-2)
    14·1 answer
  • Plzz help i have 5 minutes left, will mark brainliest!
    13·1 answer
  • Can one of y’all help me pls
    12·1 answer
  • Solve Quadratic Equations (Factoring a=1)
    7·2 answers
  • Joy has ₱500.00 to spend for food. She spent ₱98.75 on Monday, ₱73.75 on Tuesday and ₱50.25 on Wednesday. How much money was lef
    13·1 answer
  • Suppose ABCD is a rectangle, F and G are points on
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!