If using the method of completing the square to solve the quadratic equation x^2-5x-27=0 which number would have to be added to "complete the square"?

Answers

Answer 1

Answer:

can you mark brainliy

Step-by-step explanation:

x²-5x+(-5/2)²=27+(-5/2)²

(x-5/2)²= 133/4

x-5/2= ±√(133/4)

x= (5/2)± √(133/4)

x= ...


Related Questions

Drako found an emerald in a cave at a depth between Negative one-half and Negative 1 and two-thirds meters. Which number could represent the depth at which the emerald is located?

Answers

Answer:

Negative 1 and three-fifths meters

Factor the expression 4+28x using the GCF

Answers

Answer:

4(1+7x)

Step-by-step explanation:

There are 2 terms in this expression: Factorize them

4: 2 * 2

28x: 2 * 2 * 7 * [tex]x[/tex]

Which factors do both of the terms have in common?

2 and 2, which means that the GCF is 4.

Now to figure out whats inside the parentheses.

What number multiplied by 4 gives 4? 1

What number multiplied by 28x gives 4? 7x

So the final result is 4(1+7x)

The tree diagram represents an
experiment consisting of two trials.

Answers

I think answer i based on the gram so maybe another method

Find m < RQP

A) 70°
B) 55°
C) 80°
D) 90°

Answers

Answer:

The answer is 70

Step-by-step explanation:

This is an inscribed angle, and acording to the inscribed angle therom, the ? is 1/2 the measure of it ark.

So divide the ark measure (140 degrees) by 2

and you get 70 as your answer

Hope this helps!! (ɔ◔‿◔)ɔ ♥

CAN SOMEONE PLEASE HELP ME WITH THIS!! IMAGE BELOW
ILL GIVE YOU BRAINLIST ANSWER

Answers

Measure of hypotenuse is always larger than measure of the legs, or two ends of the legs always connect to form a hypotenuse, or hypotenuse is always a^2=b^2+c2

g(n) = 4n+ 3
f(n) =n +4
Find -5g (9) + 5f (9)

Answers

Answer: -130

Step-by-step explanation:

 GIVING BRAINLIEST TO THE PERSON THAT CAN EXPLAIN THIS THE BEST (:

Answers

Answer:

the given picture is not clear

Someone solve number 8 pleaseeeee

Answers

Answer:

2 cats

Step-by-step explanation:

12% of 24 = 2.88

Answer:

2 cats were adopted.

Step-by-step explanation:

When finding a percentage of something, heres a trick. Just take the number you taking the perccentage of, and mutiply it by the percentage. In this case, 24*12.

24*12 = 288.

Now take that new number and divide it by 100. Now you have your answer. In this case,

288/100 = 2.88.

Becuase these are cats, we can't have or adopt half of one XD. You can't adopt half of a cat, so we round it down to 2. Meaning, 2 cats were adopted.

Solve the equation. y 3 = –y 9 y = 1 y = 3 y = 6 y = 9

Answers

The solution of the equation is y = 3.

What is the linear equation?

An equation between two variables that gives a straight line when plotted on a graph.

The solution to the equation is;

[tex]\rm y + 3 = -y + 9\\\\y+y=9-3\\\\2y=6\\\\y=\dfrac{6}{2}\\\\y=3[/tex]

Hence, the solution of the equation is y = 3.

To know more about linear equations click the link given below.

https://brainly.com/question/14824234

An urn of boiling water in an office has a capacity of 20litres. If it filled to maximum capacity, calculate the number of 250ml cups that can be shared from it.

Answers

Ok, in a liter there is 1000 milliliters, multiply by 20 to get 20,000, now we know the urn has 20,000 milliliters and we simply divide it by 250 to get about 80 cups

done for you. 70 77 75 73 Tree Heights 65 70 74 64 75 79 68 86 77 61 79 75 2. Complete the histogram for the data. 1. Complete the frequency table. Use an interval of 5. Tree Heights Heights (in.) Frequency 60–64 Tree Heights 8 2 65-69 2 70-74 4 Frequency 75–79 7 2 80-84 O 85-89 1 757873 50 Answer the questions below. The first one is done for you. 178 ,73,7 755.752 3. What is the range of the tree heights? 25 4. What is the median of the tree heights? B 5. What is the mean of the tree heights? 6. Where did you need to look to answer Exercises 3-5? 7. The nursery wants a sign that tells what trees are available for sale by height. What measure of center would you use for the sign? 8. In the space below, make a sign for the trees for sale at the nursery.​

Answers

Answer:

dont anwer it

Step-by-step explanation:

its realy harder than mine

Ms. Lawrence had $550 in her bank account. The next day she withdrew $120 to buy groceries. She deposited $200 two days later. Four days later she used her debit card to buy new shoes that cost $89. What was her bank account balance after these transactions? O A $541.00 O B $630.00 O c $430,00 D $670.00​

Answers

option A

hope it really helps...!!!

GIVING BRAINLIEST TO THE PERSON THAT CAN EXPLAIN THIS THE BEST (:

Answers

Answer:

30

Step-by-step explanation:

Perimeter of parallelogram = 70 ft

-> 2x + 2y = 70 .....(1)

x = 6y (Given) .....(2)

From equations (1) & (2)

2(6y) + 2y = 70

12y + 2y = 70

14y = 70

y = 70/14

y = 5

-> x = 6*5

-> x =30

This shape is called parallelogram.

perimeter : 2(base + height)

Identify the base and height

base : x ≈ 6(y)                                          [ as x is 6 times as large as y ]

height : y

====================================

2(base + height) = perimeter2(6(y) + y) = 70 2(7y) = 707y = 35                                             [ divide both sides by 7 ]y = 5

Find x:

x ≈  6(y)x ≈ 6(5)x =  30

Write an example problem(s) for area.

Answers

Answer:

Example 1.

A square with side lengths of 5.

5*5 = 25.

So the area would be 25 units ^2

Example 2.

A rectangle with a length of 9 and a width of 4

9*4 = 36

So the area is 36 units ^2

Answer:

A square with side lengths of 5.5*5 = 25.

Step-by-step explanation:

find the area of the composite figure​

Answers

Answer:

74 in²

Step-by-step explanation:

The easiest way to find the area is to imagine the rectangle as a whole rectangle, then subtract the area of the empty space.

The area of the whole rectangle can be found with:

A = b · h

A = 9 in · 11 in

A = 99 in²

So the area of the entire rectangle (with the empty space included) is 99 in².

In order to find the area of the composite figure, you need to subtract the area of the empty space, which can be found with:

A = b · h

A = 5 in · h

In order to find the height of the empty space, we can take the whole side (11 in) and subtract the values already there (4 in and 2 in).

11 in - (4 in + 2 in) = 5 in

So the height is 5 in:

A = 5 in · 5 in

A = 25 in²

The area of the composite figure is:

A = 99 in² - 25 in²

A = 74 in²

Answer:

Answer:74 in^2

Step-by-step explanation:

My in-head skip solutioning method...:

the 4, 5__2,9___4,4,2__=10in.___5,4__=9in.

......__74

two children want to share 5 cupcakes so that each child gets the same amount. How many cupcakes should each child get

Answers

Answer:

2.5

Step-by-step explanation:

5 divided by 2 equals 2.5


Felipe received a $15.25 gift card for a photo center. He used it to buy prints that cost 6 cents each. The remaining balance, B (in dollars), on the card after
buying x prints is given by the following
B = 15.25 -0.06x
What is the remaining balance on the card if Felipe bought 50 prints?


Can anyone help me ?

Answers

Answer:

12.25

Step-by-step explanation:

B = 15.25 -0.06x

B = 15.25 -0.06(50)

B = 12.25

The answer is 254.16 is just 15.25 divided by 0.06

PLEASE HELP WILL MARK BRAINLIST
The line y = 3x +2 is dilated by a scale factor of 2 centered at the origin. Which equation represents the image of the line after the dilation?
y=6x+4
y=2x+2
y=3x+9
y=3x+4

Answers

Answer:

y=6x+4

Step-by-step explanation:

Quadratic Functions - Part 2
Graphing Quadratic Functions Using Vertex Form - Part 1
Independence Practice

1. Identify the vertex, complete the table and graph g(x) = (x – 4)^2 – 5.

2. Identify the vertex, complete the table and graph h(x) = (x + 1)^2 + 4.

Answers

Answer:

h(x) = (x + 1)^2 + 4/ 23+40 =49

Step-by-step explanation:

The step by step is on papamath.com

The triangles are similar. Find the value of x.

Answers

Answer:

x = 36

Step-by-step explanation:

Remark

This can be done as a proportion. A proportion consists of 2 ratios which means it has 4 parts. If you know three of them, you can solve for the 4th.

We can use the following proportion

42/14 = x / 12    Notice that both ratios have tops and bottoms that use corresponding parts. Cross Multiply

14*x = 42 * 12            Combine the right

14x  = 504                 Divide by 14

x = 504/14

x = 36

What is 11 in x 17 in (7.7 in x 23) in

Answers

33117.7 in is the answer I believe…

Answer:

33117.7

Step-by-step explanation:

33117.7 is the perfect answer

pls help answer
i dont not need explaination
:)

Answers

Answer:

165 km²

Step-by-step explanation:

First, let us find the area of the big rectangle.

Area = length × Width

Area = 15km × 13 km

Area = 195 km²

Now, let us find the area of the small rectangle.

Area = length × width

Area = 6 km × 5 km

Area = 30 km²

And now, let us find the area of the shaded region.

For that, we have to subtract the area of the small rectangle from the area of the big rectangle.

Area = 195 km² - 30 km²

Area = 165 km²

a. 30
b. 86
c. 32
d. 79

Answers

Answer:

30°

Step-by-step explanation:

<KOL = <JOL - <JOK

= 58° - 28°

= 30°

Which quadratic function is represented by the graph?

Answers

Answer:

f(x) = -5(x+1)(x-5)

Step-by-step explanation:

Because the x-axis of the arch is 1 and -5 and it couldn't be -1/5 because the y-axis doesn't show that.

The is a picture show all details and work
(triangles)

Answers

Answer:

x: 8.75

y: 8.5

Step-by-step explanation:

Since the two triangles are similar, you can find the scale of LJK relevant to TRS by dividing 7/4 = 1.75

This means each side of LJK is 1.75 times greater than the respective side of TRS

Now you can plug this in to the other two sides by doing 5*1.75=8.75 and 6*1.75=10.5

This solves x, but since side LK is y+2, y is 10.5-2=8.5

x=8.75

y=8.5

40x40x40 divided by 6 Help me pls

Answers

Answer:

the answer is 10666.6666667.

Step-by-step explanation:

40*40*40=64000

64000/ 6=10666.6666667

can I get help with this problem

Answers

Answer:

-2

Step-by-step explanation:

plug in -1

Can someone help me with this problem

Answers

d(4.4)

hope it really helps ...!!!

A company is promoting two employees to the director and manger roles. If there are currently 35 employees, how many ways can those positions be filled?
1785

1190

595

270

Answers

Answer:

595

Step-by-step explanation:

2 positions for 35 employees.

[tex]C(n) = (\frac{n}{k}) = \frac{n!}{(k!(n-k)!)}[/tex]

Where n = 35, total number of employees and k = 2, how many spots available

[tex]\frac{35}{2} = \frac{35!}{2!(n-k)!} = \frac{35*34}{2 * 1} = 595[/tex]

Answer:

595

Step-by-step explanation:

What is the percent of increase from 4.2 to 9.5?

Answers

Answer:

126.19%

Step-by-step explanation:

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