Find the value of c that completes the square

x^2-x+c

Please help me with how to do this, and show me. Thank you.

Answers

Answer 1

Answer:

c = [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

Given

x² - x + c

To complete the square

add ( half the coefficient of the x- term )² to x² - x

x² + 2(-[tex]\frac{1}{2}[/tex] )x + [tex]\frac{1}{4}[/tex]

= (x - [tex]\frac{1}{2}[/tex] )² ← a perfect square

with c = [tex]\frac{1}{4}[/tex]


Related Questions

Which one is correct ; BODMAS , BOMDAS, BIDMAS or PIDMAS?​

Answers

Answer:

BODMAS

Step-by-step explanation:

BODMAS is correct.

Brackets

Of

Division

Multiplication

Addition

Subtraction

Given that a = -1, b=2 and c= -3 ,find the value of a(b2+c2)

Answers

Answer:

a([tex]b^{2}[/tex]+[tex]c^{2}[/tex]) = = -13

Step-by-step explanation:

Given that a = -1, b=2 and c= -3

find the value of a([tex]b^{2}[/tex]+[tex]c^{2}[/tex])

Just substitute the values given for each variable

a([tex]b^{2}[/tex]+[tex]c^{2}[/tex]) = (-1)([tex]2^{2}[/tex]+[tex](-3)^{2}[/tex]) ; do the exponents first

a([tex]b^{2}[/tex]+[tex]c^{2}[/tex]) = (-1)(4+9)=(-1)(13) ; now add inside the parenthesis;

a([tex]b^{2}[/tex]+[tex]c^{2}[/tex]) = -13 ; and multiply by -1

In this quilt pattern, the 16 smallest triangles are congruent, isosceles right triangles. If AB = 10 inches, what is the total area of the 8 shaded regions?

Answers

Answer:

Step-by-step explanation:

100. if you do each shaded square it'll be 5 by 5. 5 by 5 divided by 2 is 12.5. Times that by 8 is 100

Answer:

100

Step-by-step explanation:

Need Help QUICK, Will MARK BRAINLIEST!!!! LOTS OF POINTS

Answers

Answer:

Step-by-step explanation:

Help with what

Answer:

what is the question???

Step-by-step explanation:

I have 5 digits. My q is worth q * 10,000. My 2 is worth 2 thousand. One of my 7s is worth 70. The other is worth 10 times as much. My other digit is a 6. What number am l

Answers

Answer:

92,776

Step-by-step explanation:

I have 5 digits. My 9 is worth 9*10,000. My 2 is worth 2 thousand. One of my 7s is worth 70. The other is worth 10 times as much. My other digit is a 6. What number am I?

My 9 is worth 9*10,000 = 9 * 10,000

= 90,000

My 2 is worth 2 thousand = 2,000

One of my 7s is worth 70 = 70

The other is worth 10 times as much = 70 * 10

= 700

My other digit is a 6 = 6

The number is

90,000 + 2,000 + 700 + 70 + 6

= 92,776

Triangle PQR is similar to triangle XYZ. What is the perimeter of triangle XYZ?

Answers

Triangle PQR is similar to triangle XYZ. What is the perimeter of triangle XYZ? Where is the picture

anyone help please?
i’m confused.
segment and angle bisectors.

Answers

See you gotta do question 2 and 10 by yourself coz I can’t get the correct measurement.
Else than that is here
Check it out
Here is the working
Hope it helps :)

Tom woke up one morning and the temperature was −6° Celsius. The high temperature that day was 6° Celsius. What was the difference between the low temperature and the high temperature that day?

Answers

Answer:

12˚C

Step-by-step explanation:

If the high temperature is 6˚ and the low temperature is -6˚, the difference is

6˚-(-6˚)

=6˚+6˚

=12˚.

12 degree difference. From -6 to 0 is 6. And from 0 to 6 is six.

The price of a computer was decreased by 20% to £420.
What was the price before the decrease?

Answers

Answer:

£525

Step-by-step explanation:

420 ÷ 0.8 = 525

The graph shows that the distance a dog runs is proportional to the time the dog is running. You want to use only one plotted point to find the unit rate. Which of the three plotted points could you choose? Select all that apply.

(0,0)

(1,9.7)

(4,38.8)
Question 2
The unit rate is
feet per second.

Answers

Answer:

2

Step-by-step explanation:

2

Divide helpppppppppppppppppp​

Answers

Answer:

347

Step-by-step explanation:

You need to see how many times 56 fits inside of 19,432. Long division works best for this case

The perimeter of a rectangle
is 44. The lenght is 5 less
than double the width.
Find the dimensions.​

Answers

Answer:

9,13

Step-by-step explanation:

perimeter=2(x+y)

length = 2x-5

2(3x-5)=44

6x-10=44

6x=54

x=9

y=13

Hope this helps plz mark brainliest :D

A retail store is having a sale on toilet paper. At 2:00 PM, the
store had sold a total of 15 packs of toilet paper. At 5:00 PM,
the store had sold a total of 57 packs.
Assuming that it is positive, what is the average rate of change
between 2:00 PM and 5:00 PM?

Answers

Answer:

14.25 packs per hour

Step-by-step explanation:

it is 4 hours from 2:00-5:00 so... 57÷4=14.25 packs per hour

The average rate of change between 2:00 PM and 5:00 PM will be 14 packs per hour.

What is the rate of change?

It is defined as the change in values of a dependent variable with respect to the independent variables. The term "rate of change" refers to the pace at which one quantity changes with respect to another.

Given that, a retailer is offering discounted toilet paper. The shop sold a total of 15 packs of toilet paper around 2:00 PM. The shop has sold 57 packets as of 5:00 PM.

The average rate of change between 2:00 PM and 5:00 PM is obtained by taking the ratio of the change to the number of packs sold to the time elapsed as,

=( 57 - 15 ) / 5 - 2

=42 / 3

= 14 packs per hour.

Thus, the average rate of change between 2:00 PM and 5:00 PM will be 14 packs per hour.

Learn more about the rate of change here:

brainly.com/question/12786410

#SPJ2

To the nearest centimeter, what is the area of the shaded sector in the circle shown below? A. 12 cm2 B. 151 cm2 C. 23 cm2 D. 138 cm2

Answers

Step-by-step explanation:

what are the sides given?

Answer:

The correct answer is D:

Step-by-step explanation:

I just got it correct.[tex]138 cm ^2[/tex]

Marcus works as a salesman at a car dealership. He is paid a base salary of $1,289.22 each month, and he receives a commission
of $249.09 for each vehicle he sells. If last month Marcus earned $12,249.18, how many cars did he sell last month?
ОА.
29
ОВ.
88
Ос.
98
OD
44
Reset
Submit

Answers

Answer:

49.17

Step-by-step explanation:

geometric of
1/3, 2/9, 4/27, 8/81, 16/243

Answers

a The answer is
n
=
2
n

1
3
n

i am trying to remember how to do Write a two-column proof,


Given: a = 2b + 6

a = 9b - 8


Prove: b = 2

Answers

9514 1404 393

Explanation:

Make use of the properties of equality.

  a = 2b +6 . . . . . given

  a = 9b -8 . . . . . given

  2b +6 = 9b -8 . . . . . . . substitution property of equality

  6 = 7b -8 . . . . . . . . . . . subtraction property of equality

  14 = 7b . . . . . . . . . . . . . addition property of equality

  2 = b . . . . . . . . . . . . . . . division property of equality

  b = 2 . . . . . . . . . . . . . . symmetric property of equality

what is 4/9 × 3/16 asap help it would mean so much

Answers

Answer:

0.083

Step-by-step explanation:

Step-by-step explanation:

.083 repeating

Which of the following expressions are equivalent to this expression
-1(0) = ?
0 -1[4 + (-4)]
-1[4 + (4)]
O 1 + [4 + (-4)]
O-11-4 + (-4)]

Answers

Answer:

so It A -1{4 + (-4)}

Step-by-step explanation:

take the quiz

Write a piecewise function for the graph.

Answers

Similar to Modulus, but It's separated.

Since both are separated, that means - they are both linear function.

The range is greater than all negative numbers. That means y ≥ 0

( 1 ) For the blue graph,

y = -x-3  {y ≥ 0} ---------- Blue Graph Answer

-x-3=0

-x=3

x=-3

We can clearly see that the slope is -1.

And intercept x-axis at (-3,0)

( 2 ) For the red graph.

y = 2x+6 { y ≥ 0} ---------- Red Graph Answer

Notice that the slope is 2.

And intercept x-axis at (-3,0)

Also intercept y-axis at (0,6)

2x+6=0

2x=-6

x=-3

---------- Only linear function with given y ≥ 0 can draw that. (Only separated graph.) --------------

(02.07)
Plssss Help me this is die in a hour


Sydney is 5 feet and 1 inch tall. What would her height be in centimeters? (1 foot = 12 inches, 1 inch = 2.54 centimeters)

Answers

Answer:

154.94 cm or 155 cm rounded to the nearest tens

For the following pairs of equations explain why the equations are NOT equivalent.

Answers

If you were to make both x's equivalent, you'd have to multiply the first equation by 2 to get rid of the coefficient, 1/2. However, you'd have to multiply 2 onto -8 as well, therefore the equation would turn into x - 16 = 18. That is not equivalent to x - 8 = 18.

The veterinarlan told Sally that her cat needs to lose 5 pounds. A healthy weight loss for her cat would be about 1 pound every 2 weeks. To model this situation, she graphed the following line, where y represents the number of pounds left to lose and x represents time in weeks. The equation for this line is y= ___x +___. If she continues the line, she would see that it would take ___ weeks for her cat to lose 5 pounds​

Answers

Answer:

it would take the adverage of 10 weeks for her to lose 5 pounds did that help?

Step-by-step explanation:

Mass = 65 kg
Acceleration = 0.3 m/s2
Force =

Answers

Answer: 19.5 N

Step-by-step explanation:

Answer:

The answer is 19.2N

Step-by-step explanation:

F=m a

F=64*0.3=19.2N

Evelyn drove 248 miles in 8 hours. If she continued at the same rate, how far would she travel in 6 hours?

Answers

Answer:

186

Step-by-step explanation:

248÷8 = 31

31 miles = 1 hour

31×6 = 186

Answer:

186 miles in 6 hours.

Step-by-step explanation:

Since the problem gives 248m/8h, you would divide 8 into 248 to get the constant speed of 31mph. If you multiple 31 by 6, you get 186 miles after 6 hours.

which of the following lines is perpendicular to y = -5x - 2?
a. y = -5x +5
b. y = 5x - 1
c. y = 1/5x + 1/5
d. y = 2/5x + 3

Answers

Answer: c is perpendicular to y = -5x - 2

Explanation: The slope of a perpendicular line is an opposite reciprocal of the original slope/line. (Basically switch the numerator and denominator and the sign. In this case, the slope is -5/1x. It’s opposite reciprocal is 1/5x.)

You can take a look at my notes for further clarification. Hope this helps!

What is the slope of the line that passes through the points (-8,-4) and (4,-4)

Answers

Answer:

0 over 12    or undefined answer

Step-by-step explanation:

y2-y1 over x2-x1

Will give brainliest please be CORRECT.. thank you..

Answers

Answer:

undefined

Step-by-step explanation:

if you try to calculate the slope using any method, you won't be able to come up with an answer

What is the graph for f (x)=-2(x-3)2+4

Answers

Answer:

hnahnahnahnahhnahnahnahnah

like this ? since the slope would be f(x)=-2x+12

PLZ HELP!
What is the domain and range for the function graphed to
the left?

Answers

Answer:

Domain: (-∞, ∞)

Range: (-∞, -3]

General Formulas and Concepts:

Algebra I

Domain is the set of x-values that can be inputted into function f(x)Range is the set of y-values that are outputted by function f(x)

Step-by-step explanation:

We know that the parabola will continue indefinitely, hence we use infinity. Our domain would then be from negative infinity to positive infinity, because we can plug in any number x.

We see the from the graph that the y-value is actually restricted. We have a max value of y = -3, and the graph will never go higher than that. Therefore, our range spans from negative infinity to -3.

Step-by-step explanation: The range of a function

is the set of all y values of the function.

The y values on a coordinate system are the up and down values.

Our parabola is expanding infinitely downwards but

it never goes above the y value of -3.

So we say that the range of this function is {y: y ≤ -3}.

The domain is the set of all x values or left and right values.

Since it's expanding infinitely to the left and right,

we say that the domain is the set of all real numbers or R.

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