Mathematics High School

If using the method of completing the square to solve the quadratic equation
22 + 15x – 11 = 0, which number would have to be added to "complete the
square"?

Answers

Answer 1

Answer:

Step-by-step explanation:

Let's solve your equation step-by-step.

22+15x−11=0

Step 1: Simplify both sides of the equation.

22+15x−11=0

22+15x+−11=0

(15x)+(22+−11)=0(Combine Like Terms)

15x+11=0

15x+11=0

Step 2: Subtract 11 from both sides.

15x+11−11=0−11

15x=−11

Step 3: Divide both sides by 15.

15x

15

=

−11

15

x=

−11

15

Answer:

x=

−11

15

Related Questions

Can some one tell me the answer


Find the missing angle

Answers

The answer is 137°...

Answer:

137°

Step-by-step explanation:

See image

4 (X+7) = 38
WHAT IS X AND EXPLAIN HOW YOU KNOW

Answers

Answer:

X=2.5

Step-by-step explanation:

38÷4 = 9.5

9.5 - 7=2.5

Divide each side by four to get rid of that numbr from the elft and subtract seven from both sides to get rid of the seven so your left with x=2.5

Answer:

X is 2.5

Step-by-step explanation:

4÷4=1

38÷4=9.5

9.5 - 7=2.5

Therefore X is 2.5

Hope this helps!

What is the following product?

(x StartRoot 7 EndRoot minus 3 StartRoot 8 EndRoot) (x StartRoot 7 EndRoot minus 3 StartRoot 8 EndRoot)

Answers

Answer:

b

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

edge 2021

Can someone help me solve this?

Answers

Answer:

honestly they all are the same i had a similar question and thats what i put so yeah sorry if i didn`t help

Step-by-step explanation:

Can the sides of a triangle have lengths 1, 4, and 5?

Answers

Answer:

No, it can't. The sum of any two sides must be bigger than the third side to form a triangle.

Step-by-step explanation:

1+4 = 5

(3/4) to the power of 2

Answers

Answer: 3/16

Step-by-step explanation: hope this helps :)

Answer:

0.5625

Step-by-step explanation:

Name two pairs of alternate exterior angles.

Answers

When two lines are crossed by another line (called the Transversal): Alternate Exterior Angles are a pair of angles on the outer side of each of those two lines but on opposite sides of the transversal. In this example, these are two pairs of Alternate Exterior Angles: a and h.

What is the value of expression below -8.125 + 7 3/8

Answers

Answer:-6/8, -3/4, -0.75

Step-by-step explanation:

Background info:

0.125=1/8

An you can also use the commutative property to "flip" the equation

Let's rewrite -8.125 as 8 1/8 because we know 1/8=0.125

And let's write it as a improper fraction - 65/8 and let's write 7 3/8 too as 59/8

Now we have to use the distributive property and subtract 65/8 from 59/8 (59/8 - 65/8) and you will get -6/8 or simplified -3/4 or in decimal -0.75

Jolene earned a 75% on her last quiz. If there were 8 questions, how many did she answer correctly

Answers

Answer:

6

Step-by-step explanation:

100% / 8 questions= each question is worth 12.5 points

12.5*6=75

Therefore 6 were answered correctly

answer this please :D but bot kokes serious answers

Answers

1 1/5 = 1.2
1.5-1.2 = 0.3

Write an equivalent
expression
- 4(5 + 7g)

Answers

Answer:
-4(5 + 7g) = -28g -20

Solution or no solution?

Answers

I think the answer is solution

*PLEASE ANSWER!!*

Denise and her family go out to dinner at a restaurant. The bill is $100. They leave a 20% tip for the server. How much money do they tip?

a.) $12

b.) $20

c.) $10

Answers

The answer would be B because 20% of 100 is 20
The answer to your question is b

which on these sequences are a fibonacci sequence?? HELP ASAP!!

Answers

Answer:

i believe it's c

Step-by-step explanation:

from what I know the fibonacci sequence is numbers that go up by adding the following number so 1+2 is three and then 2+3 is 5

Answer: C

Explanation:
In the Fibonacci Sequence, you just continuously add the last number in the sequence to the next number in the sequence.

Example:
1, 2 (the next number would be 3 bc 1 + 2 = 3 and so fourth.)

What is the value of the expression below?
- 14+ 8-12​

Answers

-18
Give brainliest please thank you.

Step-by-step explanation:

- 18

please follow and like

Rachel loves to read. Her favorite books are Dr Suess. For every 13 books Rachel owns 8 are Dr Suess books.
If Rachel had 32 Dr Suess books, how many books did she have in total?

Answers

Answer:

32

Step-by-step explanation:

What is the value of x?

Answers

In my knowledge

x = 24²+7²

= 576+49= 625

x= sqroot of 625

x = 25 (By Pythagoras Theorem)

Hope it helps

Combine like terms to create an equivalent expression.
Make sure to simplify coefficients and constants as well.
-6/5 - 2/3v + 4/15 +1/3v

Answers

-14/15 - 1/3v is the answer

how will you remember what changes when reflecting across the x-axis?
here are 20 points lovely person

Answers

Answer: When you reflect a point across the x-axis the x-coordinate remains the same, but the y-coordinate is transformed into its opposite

Step-by-step explanation:

At a dance, 25% dresses up in a superhero costume, 32% as a scary character, 10% as an entertainer, 15% as a children's movie character, and 16% did not dress up at all. If a total of 250 students attended the dance and 15% of the scary character students were girls, how many boys dressed up as a scary character? ​

Answers

Answer:

68 boys

Step-by-step explanation:

32% of 250 = 80

of 80 scary characters, 15% were girls

80 x .15 = 12 (girls)

80 - 12 = 68 (boys)

Help me people please

Answers

Answer:

C

Step-by-step explanation:

When the domain is y, the line is always horizontal

X could be anything and the line would still be horizontal because y is 1.5

Find the circumference of each circle. Use your calculator's value of p. Round your answer to the nearest tenth.
will be marked.

Answers

Step-by-step explanation:

2*22/7*5=31.42857143

3.
The cost of a cell phone is $399. A
newer model costs 15% more.
During a sale, the newer model is
offered at a 30% discount.
Which of the following is closest to the
sale price of the newer model? 3
(a)
$251.16
(b)
$269.10
(c)
$310.96
(d)
$321 20

Answers

Answer:

D. 321.20

Step-by-step explanation:

15% more than 399 is 458.85.

30% off of 458.85 is $321.195

Solve this equation.
-4 (y - 3) = 36

Answers

-4y + 12 = 36

-4y = 24

y = - 6

Answer:

y = -6

Step-by-step explanation:

To solve for y, you must isolate the variable by first dividing both sides by -4:

-4 (y-3) = 36

÷-4

y-3 = -9

Next, add 3 to both sides and you will get your final answer:

y-3 = -9

+3

y = -6

To check your answer, you can plug in -6 for y to ensure that the overall result is 36:

-4(-6-3) = -4(-9) = 36

36 = 36

Hope this helped!

Find the slope of the line that goes through (3,5) and (9,-2).

Answers

Answer:

-7/6

Step-by-step explanation:

the slope is change in y/change in x:

-2-5/9-3 = -7/6

The answer above me is right

Two flag poles at Liberty Park are 27 feet tall. The distance from the top of one flag pole to the base of the other is 45 feet. What is the distance between the two flag poles?

Answers

Answer:

Step-by-step explanation:

Answer:

The distance between the two poles is 36 feet.

Step-by-step explanation:

If 2 flag poles are 27 feet tall each

if the distance from one flag pole to the base of the other flag pole is 45 feet, this forms the shape of a right angle triangle.

Here, we are going to make use of the Pythagoras theorem.

a2 + b2 = c2

27 2 + b2 = 45 2

b2 = 45 2 - 27 2

b = 45 2 - 27 2 (square root)

b = 2025 - 729

b= 1296 (square root)

b = 36

Does the graph represent a function?

Choose 1 answer:

A. Yes
B. No

Plz someone help!

Answers

the answer would be YES i’m pretty sure!

Answer:

B no it's not a function

Step-by-step explanation:

there has to be decrease and increase in the line

Enter the value of 62×31+14÷2 as a whole number.

Answers

= 1929

Step-by-step explanation:

= 62 × 31 + 14 ÷2= 62 × 31 + 7= 1922 + 7= 1929

MARK ME BRAINLIST

Answer:

wdu4ehrh4hru4

Step-by-step explanation:

yes i am god

You want to purchase multiple books on sale for $6.30. The sales tax is 5% and you have $20. At most, how many books can you buy?

Answers

Answer:

3 books

Step-by-step explanation:

Assume x is the number of books you could buy.

(1+0.05)(6.3x) ≤ 20

1.05(6.3x) ≤ 20

6.615x ≤ 20

x ≤ 3.02

Answer:

the awnser is 3 books yiu can buy

Tell which value of the variable is the solution of the equation. 6c=96; c=14,15,16,17

Answers

Answer:

c = 16

Explanation:

Do it on a calculator it'll be correct

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