Mathematics High School

If using the method of completing the square to solve the quadratic equation
x²– 20x + 24 = 0, which number would have to be added to "complete the
square"?

Answers

Answer 1
x²-20x + 24 = 0

x²-20x = 24

x²-20x + 100 = 24 + 100

(x-10)² = 76

x = -2 √(19) + 10
x = 2 √(19) + 10

Related Questions

what is 0.1+0.73 answer if u can thanks​

Answers

Answer:

0.83

Step-by-step explanation:

0.1 + 0.73 = 0.10 + 0.73 = 0.83

Answer:

0.83

Step-by-step explanation:

0.73+0.1=0.83

I hope this helps! Have a blessed day!

Please Help give me an A

Answers

What are your answers? And btw kinda cute

A swiming pool has a perimeter of 72 feet.
The short sides measure 16 feet. What is the length of the longer sides of the pool

Answers

Answer:

40 for both of the long sides.

Step-by-step explanation:

Hope this helps! <3

Answer: Each long side is 20

Step-by-step explanation: If the short side were 16 then you would subtract 32 from 72. This would give you 40 you would divide this by two because you have two sides. So each long side is 20.


Can you help me with number 8

Answers

Answer:

A. :)

Step-by-step explanation:

Brainly?

You are making a plan to paint your bedroom walls. Describe the shape of your bedroom and how you can use the geometry formulas to calculate how much paint that you will.

Answers

Answer:

we can use the formula of area of four wall

and the cost of painting the wall

The trapezoids are similar. In the figure below KLMN ~ WXZY. What is the value of b?

Answers

I think it’s 12 because B is to 60 while 9 is to 45, 45/9 is 5. 60/5 = 12

In the number 222, how many times larger is the value of the digit in the tens place than the value of the digit in the ones place?

Answers

Answer:

hi to everyone for me and the kitchen and

Please help The question is in the screenshot down below.

Answers

Answer:

Scale factor of 2

Step-by-step explanation:

The base legnth of the after image is 8 and the original base legnth is 4 so 8/4=2

b) Factorise fully
8x + 12x

Answers

Answer:

20x simplified

4x(2+3) factored

Raul quiere agregar a su artículo algunos recursos visuales, para que su tema que-
de más comprensible. ¿Cuál opción los muestra?
1. Gráficas
2. Cita textual
3. Ilustraciones
4. Tablas de datos
5. Referencias bibliográficas
B) 1, 4, 5
A) 1, 3, 4
D) 3,4,5
C) 2,3,4
chos Reservados. GOB. EDO. SEECH. MEAD​

Answers

Answer:

La respuesta es la opción A

Find the missing angle.
86°
84•
?
36

Answers

Answer:

? = 64°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

The third angle in the triangle on the right is

third = 180° - (84 + 36)° = 180° - 120° = 60°

Thus the third angle in the triangle on the left is

third = 90° - 60° = 30° , then

? = 180° - (86 + 30)° = 180° - 116° = 64°

What's substitution for y=4x-1, 2x+y=5

Answers

Step-by-step explanation:

y = 4x-1

2x+y = 5

2x+(4x-1) = 5

6x - 1 = 5

6x = 6

x = 1

Answer:

(1,3)

Step-by-step explanation:

Since we already have the variable to it self, we can substitute y=4x-1 into 2x+y=5.

So it would be 2x+(4x-1)=5

Remove the parentheses

Combine like terms

Move the constant to the right

Divide 6 on both sides to get the variable by it self.

x=1

Then we substitute x=1 into y=4x-1, so..

y=4(1)-1

y=4-1

y=3

So the answer would be (1,3).

Hoped it helped!

5 t-shirts and a hat costs £62.00
2 t-shirts and a hat costs £29.00.
How much does a t-shirt cost?
How much does a hat cost?

Answers

Answer:

T-shirt : £11

Hat : £7

Step-by-step explanation:

Think of T-shirts as T

and Hats as H

5t + h = 62

2t + h = 29  

we then subtract them both to cancel out h

3t = (62-29) = 33

now we divide 33 by 3  to find one t

33/3 = 11

so one t shirt is £11.00

now we substitute it back into the equation

2t ( 2x11 ) = 22

22 +h = 29

29 - 22 = 7

Write (9−4i)2(9−4i) 2 in simplest a+bia+bi form.

Answers

Step-by-step explanation:

(9−4i)2(9-4i)2

Rewrite (9−4i)2(9-4i)2 as (9−4i)(9−4i)(9-4i)(9-4i).

(9−4i)(9−4i)(9-4i)(9-4i)

Expand (9−4i)(9−4i)(9-4i)(9-4i) using the FOIL Method.

Tap for more steps...

9⋅9+9(−4i)−4i⋅9−4i(−4i)9⋅9+9(-4i)-4i⋅9-4i(-4i)

Simplify and combine like terms.

Tap for fewer steps...

Simplify each term.

Tap for more steps...

81−36i−36i−1681-36i-36i-16

Subtract 1616 from 8181.

65−36i−36i65-36i-36i

Subtract 36i36i from −36i-36i.

65−72i

Someone please help me asap!!! I need serious answers please explain! I will give brainliest!!

Answers

Answer:

<J = 114 degrees

<Y = 37 degrees

JI = 15m

HJ = 16m

Step-by-step explanation:

I hope this is correct if not then I'm sorry.

If I have 18 apples and I eat 2 of them, how many do I have left?

Answers

Answer:

answer is 16 Apples

Step-by-step explanation:

Total Apples = 18 apples

Ate = 2 apples

Left = 16 apples

How:

18 - 2 = 16

50 POINTS!! BRAINLIEST TO THE FIRST ANSWER!!

Answers

Answer:

i really dont know but yeh

Answer:

7

Step-by-step explanation:

1
Write 15% as a fraction in simplest form:

Answers

Answer:

3/20

Step-by-step explanation:

15 / 100

divide both the numerator and denominator by 5: 3 / 20

Answer:

3/20 is it's simplest form.

Step-by-step explanation:

How can we solve this?

we know we can simplify this if we can divide the numerator and denominator by the same number.

15% is equal to 15/100.

15 divided by 5 equals 3.100 divided by 5 equals 20.

Therefore, 15/100 can be simplified to 3/20.

A tortoise starts running a length of 400 m. After one day, the tortoise found it has only come 4/5 of the total journey. What is the distance the tortoise has still to cover?
plz explain it..​

Answers

Answer:

The distance that the tortoise has still to cover is equal to 80 meters.

Step-by-step explanation:

When it says that she has only come 4/5 of the total journey that means that if we were to divide the journey into 5 parts of the same length, the turtle would already be done with 4 parts and has only 1 more part to do before finishing the journey.

Since all the parts are of the same length then the distance of that one part that she still has to cover is equal to...

400 / 5 = 80 m

Therefore the distance that the tortoise has still to cover is equal to 80 meters

Step-by-step explanation:

Given,

A tortoise starts running a length of 400 m.

after one day , the tortise found it has come only 4/5 tortise.

so, the total distance is : 4/5 of 400 m.

then it will come :320m.

Ans: 320m.

PLS HELP ME I ADDED MORE POINTS

Answers

Answer: D. (-6,2)

Step-by-step explanation:

y = x + 8  

2x + y = -10

v

2x + x +8 = -10

x = -6

y = -6 + 8     ( plug in x (-6) )

y = 2

( x, y) = ( -6, 2)

Please help me find the area of this polygon.

Answers

Answer:

28²

Step-by-step explanation:

area for square

4×4=16

area for triangle

6×2=12

12÷2=6(the formula for finding a triangle area is height×length after that divided by 2)

for both triangle

6×2=12

after that add 12+16 then you have the answer and don't forget your ²...

another easy trig question

Answers

Answer:

X= 5.44  y= 17.85

Step-by-step explanation:

Given that your B angle is 60 degress you can use 17tan(60) to get X which is 5.44.

Then you a²+b²=c² to find y.

y=√17²+5.44²

y= 17.85

Answer: X= 5.44  y= 17.85

Hope this helps

The graph below represents the parabolic path of a ball kicked by a young child. What are the vertex and the axis of symmetry for the parabola?
1) vertex: (3,8); axis of symmetry: x = 3
2) vertex: (3,8); axis of symmetry: y = 3
3) vertex: (8,3); axis of symmetry: x = 3
4) vertex: (8,3); axis of symmetry: y = 3

Answers

Answer: A!!

Step-by-step explanation:

i just got it right lol

Using the 28/36 ratio, determine the maximum allowable recurring debt for someone with a monthly income of $3,200. a. $256 b. $512 c. $640 d. $896

Answers

Answer:

a. $256

Step-by-step explanation:

The computation of the maximum allowable recurring debt is shown below:

Given ratio = 28:36

And the monthly income is $3,200

So the maximum expense on housing = 28% of $3,200 = $896

And, the maximum expense on total debt = 36% of $3,200 = $1,152

Now the maximum alloweable recurring debt is

= $1,152 - $896

= $256

Answer:

the answer is A

Step-by-step explanation:

need help please somebodt

Answers

A≈21.46
First you find the area of the square

A=a^2 which is
=10^2
A=100

Then you find the area of the circle
A=πr^2
= π(5)^2
A≈78.54

Now you subtract the 78.54 from 100 to get 21.46

Verify the identity.

[tex]cos 4u = cos^{2} 2u - sin^{2} 2u[/tex]

Answers

Answer:

Yes, it is an identity

Step-by-step explanation:

which one is right, i need to knowwwwwwwwwwwwwwwww!!!!!!!!!!!!!!!!!!!1

Answers

Answer:

what is the question?

Step-by-step explanation:

lol

agree or desagree? short question​

Answers

Answer:

im in the middle of both sides

Step-by-step explanation:

1. There are 16 boys and 18 girls in a Grade 6 math class. Write the ratio of girls to boys in words as simply as possible.
2. The ratio of blue marbles to yellow marbles is 5:1. For every yellow marble, there are ___ blue marbles.

Answers

Answer:

1.)8 boys yo 9 girls

2.)5

Step-by-step explanation:

1)divide by 2

2.) every yellow marble is 1 and there is 5 marbles for each yelllow marble

The ratio of boys to girls in the Grade 6 math class is =

8 : 9.

For every yellow marble, there are five blue marbles.

To find the ratio of a given two quantities how many times one quantity is greater or smaller than the other.

To find the ratio of boys to girls in Grade 6 math class simplify by dividing through with two.

Therefore, 16/18 = 8/ 9, that is 8 boys is to 9 girls.

The 5:1 ratio of blue to yellow marbles means for every yellow marble, there are five blue marbles.

Learn more about ratio here:

https://brainly.com/question/2328454

ANSWER ALL QUESTIONS PLZ:
At the park, the ratio of birds to squirrels was 4 to 5. If there were 90 birds and
squirrels at the park altogether, how many were squirrels?

Sally found that the 12 inches from her wrist to her should was 1/5 of her total height.
What was Sally’s total height in inches?

The vertices of ∆ABC are A (0,0), B (6,0) and C (6,6). Draw the triangle and its
image ∆ A’B’C’ translated to the right 3 units. What are the coordinates of the
vertices of ∆ A’B’C’?

Answers

112.5
60
Hope you know how to use a graph
A(3,0) B(9,0) C(9,6)

Answer:

50 squirrels, 60 inches, A'(3,0), B'(9,0), C'(9,6)

Step-by-step explanation:

Given that the ratio of birds to squirrels is 4:5 and there are 90 altogether, define a variable [tex]x[/tex], and [tex]4x + 5x = 90[/tex], and [tex]x = 10[/tex]. Since squirrels are the [tex]5x[/tex] part, [tex]5\cdot10 = 50[/tex] squirrels.

1/5 of her total height is 12 so let's say her total height is [tex]h[/tex] and [tex]\frac{1}{5}h = 12[/tex].

Solve for [tex]h[/tex] to get 60 inches.

Translating this triangle to the right 3 units just means adding 3 to all the x coordinates of the vertices. This gives you A'(3,0), B'(9,0), C'(9,6).

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