If using the method of completing the square to solve the quadratic equation x^2+2x+16=0x , which number would have to be added to "complete the square"?

Answers

Answer 1

The number that would complete the square is 1.

What is the completing the square method?

We know that the method of completing the square would involve a quadratic equation that does have the general form;

ax^2 + bx + c =0

We have to note that the number that is going to complete the square is the number that is going to correspond to 1/2(b).

This implies that we have to look at the b term in the equation and we b = 2.

Thus;

1/2(2) = 1

Hence, we have found that the square can be completed by 1.

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Related Questions

The expression (2x+2x)+(5x+5x)+(1+1) represents the perimeter of a triangle. Select the answer below which shows this expression in simplest form.

HINT: Simplest form means combined 'like' terms.

100 Points
A
14x + 2

B
16x

C
40x + 2

D
16

Answers

Answer:

A) 14x + 2

Step-by-step explanation:

(2x + 2x) + (5x + 5x) + (1 + 1)

= 4x + 10x + 2

= 14x + 2

You can only add 4x and 10x since they both have a variable (x). You cannot add 2 since 2 doesn't have a variable, so the answer in simplest form is 14x + 2

Please find the solution!!! 4x-3(2x-1)=7x-42

Answers

Answer:

x = 5

Step-by-step explanation:

4x - 3(2x - 1) = 7x - 42 ← distribute and simplify left side

4x - 6x + 3 = 7x - 42

- 2x + 3 = 7x - 42 ( subtract 7x from both sides )

- 9x + 3 = - 42 ( subtract 3 from both sides )

- 9x = - 45 ( divide both sides by - 9 )

x = 5

Hey please help me please

Answers

Answer:

Step-by-step explanation:

360 is a full rotation and 90 is a quarter

Answer: C

Step-by-step explanation:

a) Andrés construye cajas de diferente base. Utiliza poligonos regulares, la longitud de sus lados es la misma Adomna
1. Analiza la siguiente situación y realiza lo que se te pide:
el contorno de las tapas con liston dorado.
• Completa la siguiente tabla que elaboró para su presupuesto de materiales:
- Polígono
5
8
(lados)
Perimetro
24
30
36
(cm)
4
50
¿Cuántos centimetros mide cada lado de la tapa?
* Como encontraste el valor anterior?
¿Qué relación tiene el número de lados con el perimetro?
¿Cuál seria el perimetro de una figura de tres lados? amigos me pueden ayudar es importante

Answers

Respuesta:

la tapa mide 6 centimetros,sobre la tabla aumenta de 6 en 6

Explicación paso a paso:vas dividir 24 que es el valor de el perimetro entre 4 porque es la cantidad de lados al dividirlo te va a dar 6 que indica que aumenta de 6 en 6 tambien en la tabla cuando son 4 lados son 24 de perimetro y en el siguiente viene que 5 son 30 :)

ojala te ayude friend :-}

550 + 550 + 650 + 550 + 600 = ?

Answers

Answer:

2,900

Step-by-step explanation:

1 and 1/3 - 5/6
(ill mark when 2 answers)
(have a good day )
(HELP MEH PLZZ)

Answers

Answer:

1 1/3 - 5/6 = 1/2

Step-by-step explanation:

First we will need to make a common denominator on both sides, so since we have the second side divided in six, we can do the same to the first side as shown;

1/3 = 2/6

now this will help us a lot, now all we have to do is take what we can out of the fraction (2/6) out of the first side so it is equal to 0, NOTE this is not a professional way to do it but it helps me a lot;

5/6 - 2/6 = 3/6

this makes it easy all of a sudden, cause now its in a simpler form, we can tell this because we know that 3/6 is equal to 1/2, so now all we have to do is take 1/2 from our 1 that we are left over with, and VWOLA;

1 - 1/2 = 1/2

GRAND TOTAL;

1 1/3 - 5/6 = 1/2

(note: the space between the 1 and the 1/3 indicates that they are two separate numbers, so you dont have to put the 'and' there)

How do I graph y=x-3 and y=-2x+6

Answers

Answer:

you can use a graphing calc

Step-by-step explanation:

3. A building stands on level ground. The measure of the angle of elevation of the top of the building, taken at a
point 400 feet from the foot of the building, is 31 degrees. Find, to the nearest tenth of a foot, the height of the
building

Answers

Answer:

12,400

Step-by-step explanation:

so what you are going to first is 400 times 31 which is 12,400

in △ABC the measure of angle A is 2x + 3, the measure of angle B is 4x + 2, and the measure of angle C is 2x - 1. what are the measures of the angles?

Answers

All angles in a triangle add to 180. So, we must add all those expressions together and set them equal to 180.

2x+3+4x+2+2x-1=180
Now we combine like terms (2x+4x+3x is 8x, 3+2-1 is 4)
8x+4=180
Now subtract 4 from both sides (4-4 is 0, 180-4 is 176)
8x=176
Now divide both sides by 8.
x=22.

Now substitute 22 wherever you see x in each expression.

2x+3 = 2(22)+3 = 44+ 3 = 47
4x+2 = 4(22)+2 = 88+2 = 90
2x-1 = 2(22)-1 = 44-1 = 43

So the final answer is A=47°, B=90°, C=43°

To check, add these numbers together and see if they equal 180.

90+43+47 is 180, so the answers are correct.

please help, this is really important if you could show work that would be amazing :))

Answers

Step-by-step explanation:

step 1. x = 70° (alternate interior angles)

step 2. y = 90° (same side interior angles).

Find the volume of a cylinder with height = 10ft and the diameter of the base circle is 12ft.

Answers

Answer:

The answer is 1130.97

Step-by-step explanation:

The formula that I used

V=πr2h

Volume = π·62·10 ≈ 1130.97336

Find the value of x and the measure of the angle labeled 3x.
A. x= 14; angle measure is 30°
B. x = 10; angle measure is 42".
C. x = 14; angle measure is 42"
D. x = 10; angle measure is 30°

Answers

Answer:

Step-by-step explanation:

3x and 30 are vertically opposite angles and congruent, then

3x = 30 ( divide both sides by 3 )

x = 10 , thus

3x = 3 × 10 = 30°

x = 10 ; angle measure is 30° → D

Answer:

the answer is D, x= 10;angle measure is 30°

A shipping box is in the shape of a rectangular prism. It has a volume of 9,000 in.3, and the dimensions of the base are 20 in. by 30 in. What is the height of the box?

Answers

Answer:

A closed box is to be made in the shape of a cuboid of height h (in cm) with a rectangular base that has sides of length x (in cm) and 2x (in cm). Its volume is required to be `1000 cm^3

The height of the shipping box is 15 inches.

What is volume of rectangular prism?

The volume of a rectangular prism: length x width x height. The volume is expressed in cubic units.

given:

Volume = 9000 cubic inches

Base dimensions = 20 inches by 30 inches

Now, Volume = Base Area * Height

Height = Volume/Base Area

Height = 9000/(20 * 30)

Height = 15 in

Hence, the height of the shipping box in the shape of a rectangular prism is 15 inches.

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Please find the sum for 2/8 + 3/6 hurry please

Answers

Answer:

0.75

Step-by-step explanation:

hope this helps you

Do not, I repeat DO NOT ANSWER THIS QUESTION!!!! It is experimental, and I need to answer it with my other account, so please DO NOT ANSWER THIS!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

tfgvftydgxchtfg

Step-by-step explanation:

Which expression has a solution of 27, if r = 3?

Answers

Answer:

rx9

Step-by-step explanation:

9x3=27

Answer:

9r = 27

Step-by-step explanation:

Have a great day <3

how many fluid ounces of water does sofia use to make the batch of slime?

Answers

Answer:

lo que sea me lo pones en español plis yo te aydo

Step-by-step explanation:

How many solutions does this is have
6(x - 6)+ 26=6x - 10
Show all work please!

Answers

Answer:

All numbers are solutions. You can try this yourself by inserting numbers in.

Step-by-step explanation:

Which of the following is the solution to the compound inequality below?
3x +5>_ -1 or - 2x - 7>_5
A. x>_2 or x >_-6
B. X>_-2 or X<_-6
c. x>_5/3 or x<_-7/2
D. x>_-5/3 or x>_7/2

Answers

Answer:

The answer of the question is b

what is
(7x3)-2(5+1)+4

Answers

Answer:

Step-by-step explanation:

(7x3)-2(5+1)+4=13

what is the geometric mean of 2 and 14

Answers

Answer:

Step-by-step explanation:

add them together to get 16 then divide by 2 (the number of numbers you added) and you get 8!

Hope that helps, please mark me brainliest if it does :)

Answer:

Answer is 5.3

Step-by-step explanation:

I hope it's helpful!

2x +3y = 12

Complete the missing value in the solution to the equation

(__, 8)

Answers

Answer:

The two solutions of the equation is (0,-4)(6,0).

Please help thank you so much

Answers

Answer:

Just trust me

Step-by-step explanation:

C

-4 * -5 = 20
-4 * -2 = 8
which would get you 8^20/2^8 which is C

Round 1.983 to the nearest hundredth

Answers

Answer:

1.98

Step-by-step explanation:

Find the number in the hundredth place 8 and look one place to the right for the rounding digit 3. Round up if this number is greater than or equal to 5 and round down if it is less than 5.

Which polynomial function has a leading coefficient of 1, roots -2 and 7 with multiplicity 1, and root 5 with multiplicity 2?

Answers

Answer:

(D)

Step-by-step explanation:

If it has a leading coefficient of 1, then it can not (A) or (B) because they have a two in front of it. Next, we can check the roots -2 and 7. -2 goes with (x+2), while 7 goes with (x-7). Therefore, you can already see that the answer is (D). To make sure. let us check the root 5 with multiplicity of 2. 5 goes with (x-5), implying that there must be 2 (x-5)'s. Only (D) satifies that as well, so the answer must be (D).

Answer:

D on edge

Step-by-step explanation:

PLZZZZZZZZZ HELPPPPP

Answers

Answer:

Step-by-step explanation:

(-3,0)

(0,2)

(6,6)

The length of a rectangle is five times the width the area is 125 cm² what is the length

Answers

Answer:

Length: 25

Step-by-step explanation:

the ratio we use is 5:1

125÷5=25

5 is the width and 25 is the length

to check the answer find the area with those measurements

5x25=125 so its correct

solve 2|x+8|-6<16

Please help thanks!

Answers

Answer: Inequality form : -19<x>3

interval notation:

(--19,3)

Step-by-step explanation:

I have only 10 points plus give me the right answer this is the last I’m gonna ask but pls help just answer the blank question

Answers

I guess so

Hope it is correct

1. A pair of shoes is regularly priced at $52. They are on sale for 15%
off the regular price. What is the sale price of the shoes?

Answers

[tex]52 \times 0.15 = 7.8[/tex]

[tex]52 - 7.8 = 44.20[/tex]

The sale price of the shoes is $44.20

Answer:

52*15/100=7.8$ so u will take away 7.8$ from 52$=44.2$ he has to pay.

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