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Slav-nsk [51]
3 years ago
9

Find the value of c that completes the square x ^2 - 2x + c

Mathematics
1 answer:
Masteriza [31]3 years ago
8 0

The value of c to complete the square is one. In order to find the c value you divide the b value (-2) by 2 (-1) and then square that. -1 squared is 1. This can then be easily factored into (x-1)^2

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Write a word problem for which you would use the equation 2/5x + 6 = 56
velikii [3]

Answer:

Isha is at an arcade. There is a base fee of $6 to enter the game room. Every game costs $0.4 or 40 cents to play. If Isha ends up spending $56 at the arcade, how many games did she play?

An explanation:

The base fee of $6 represents the constant 6 in the equation. Every game costs $0.4, which equals 2/5.

Hope this helps! If you don't like this one I might be able to think of another one :)

7 0
3 years ago
What are the slope and the y- intercept of the linear function
3241004551 [841]

the slope is 9 and the y-intercept is - 2

the equation of a line in ' slope-intercept form ' is

y = mx + c ( m is the slope and c the y-intercept )

y = 9x - 2 is in this form

with slope m = 9 and y-intercept c = - 2



5 0
3 years ago
Solve for x: 3/4x+5/4=4x?
butalik [34]

Answer:

x = 5/13 = 0.385

Step-by-step explanation:

Step  1  :

           5

Simplify   —

           4

Equation at the end of step  1  :

   3         5    

 ((— • x) +  —) -  4x  = 0

   4         4    

Step  2  :

           3

Simplify   —

           4

Equation at the end of step  2  :

   3         5    

 ((— • x) +  —) -  4x  = 0

   4         4    

Step  3  :

Adding fractions which have a common denominator :

3.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

3x + 5     3x + 5

——————  =  ——————

  4          4  

Equation at the end of step  3  :

 (3x + 5)    

 ———————— -  4x  = 0

    4        

Step  4  :

Rewriting the whole as an Equivalent Fraction :

4.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  4  as the denominator :

         4x     4x • 4

   4x =  ——  =  ——————

         1        4  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

4.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(3x+5) - (4x • 4)     5 - 13x

—————————————————  =  ———————

        4                4  

Equation at the end of step  4  :

 5 - 13x

 ———————  = 0

    4  

Step  5  :

When a fraction equals zero :

5.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 5-13x

 ————— • 4 = 0 • 4

   4  

Now, on the left hand side, the  4  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  5-13x  = 0

Solving a Single Variable Equation :

5.2      Solve  :    -13x+5 = 0

Subtract  5  from both sides of the equation :

                     -13x = -5

Multiply both sides of the equation by (-1) :  13x = 5

Divide both sides of the equation by 13:

                    x = 5/13 = 0.385

One solution was found :

                  x = 5/13 = 0.385

Processing ends successfully

plz mark me as brainliest :)

4 0
3 years ago
Read 2 more answers
A bookcase has a mass of 20 kilograms. A book in the bookcase has a mass of 500 grams.
dimaraw [331]

Answer:

Step-by-step explanation:

Remark

You have to convert one of the numbers. It doesn't matter which one, but you can't simply divide one into the other the way the numbers stand.

Conversion

20 kilograms = 20 * 1000 grams / kg

20 kilograms = 20000 grams

Formula

Number of books = mass of bookcase / mass of 1 book

Givens

number of books = ??

mass of bookcase = 20000 grams

mass of one book = 500 grams

Solution

number of books = 20000 / 500

number of books = 40

Answer: 40 books =  mass of bookcase

6 0
2 years ago
Write the slope intercept form of the equation of each line given the slope and y-intercept.
Gre4nikov [31]

Answer:

Answer would be :

1) Y= -1X-5

2)Y= -1X-1

3)Y= 3/2X

4) Y= -3/4X -4

8 0
3 years ago
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