Solve the equation by completing the square.

x^2+18x=7

please show me how to also. :)

Answers

Answer 1

Answer:

x=-2[tex]\sqrt{x} 22 -9[/tex]

Step-by-step explanation:


Related Questions

Evaluate the expression
x+y3/5+ x²y when x = 3 and y = -2

Answers

8.8

I plugged in the calculator for you:)
It’s 8.8. Hopefully it helps

Given the following system, what should the second equation be multiplied by so that x is eliminated?
4x−y=9

x+3y=12

answers:
4

−13

13

−4

Answers

Answer:

-13

Step-by-step explanation:

Answer:

D.  -4

Step-by-step explanation:

I just did the quick check.  The other person is incorrect.

pleaseee help I will make you the brainiest.

Answers

I think (2,3) but I’m not completely sure

Kinda stuck on this question. Anyone can help! Thanks!

Answers

Answer:

D. 308

Hope This Helps!

Answer: your answer is D-please look below for an explanation!

Step-by-step explanation: here are the steps to find it using long division:

step 1: write out your problem-

step 2: see how many times go into 2156

step 3: write your answer out then choose

your answer is option D(308)

hope this helped! please give me a thx and brainliest!

What is the domain of the function shown in this graph?

Answers

Domain is the set of x. Therefore, the domain starts from least x-value or from left side to the right side.

In the graph, it shows that the domain is from x = 1 to positive infinity.

Therefore the answer is x >= 1

or [1,+infinity) as interval.

name something in your everyday life or something that you watch for entertainment (Like sports...) that involves understanding proportional relationships

Answers

Answer:

One thing that I watch almost everyday that can help me understand proportional relationships is ads after I've watched an important event of the show. For example, I've just watched a good episode of {Show Name} and an ad about Shoprite appears. A graph, with a red line shows you how many people prefer to go to their shop than Walmart. They put their numbers in bigger numbers, making it seem that a lot of people go there compared to Walmart, so it must be good. This involves understanding proportional relationships because it shows how many people show up to Shoprite in {number of weeks}. So, the more weeks that Shoprite shows their ad, that more people come in that week.

Step-by-step explanation:

You have to think about x and y axis, and compare it to real life situations. For example, You're pouring gas into your car. The x axis is how many gallons of gas you poured in and the y is how much money you spent. The more you pour in gallons of gas, the more money you spend.

So, now all you have to do it compare it to something you do everyday.

Please don't copy this, we are in the same class. :(

Melissa will choose between two restaurants to purchase pizzas for a party. The first restaurant charges a delivery fee of $6 for the entire purchase and $12 per pizza. The second restaurant has no delivery fee and charges $14 perr pizza. Let x be the number of pizzas purchased. ​

Answers

Answer:

I will try to described the smallness to the best of my ability. take two chairs - face them to each other - put a 12" square table between them leave enough room to open a 24" door and you have ...

Step-by-step explanation:

11. Solve the problem.
Al earns $8.75 per hour and wants to buy a Kindle for $149. About how many hours must he work?
about 10 hours

Answers

Answer:

18

Step-by-step explanation:

149/8.75 = 17.02

If he gets paid by the hour, it has to be rounded upwards.

A student is writing a research paper and must include sources from both magazines and books.
The student is required to have at least 15 sources.
• At least 6 sources must be magazines, m.
• No more than 7 sources can be books, b.
Which set of inequalities best represents the constraints on the number of sources for the research paper ?
m2 6
b20
m+bs 15
m>O
m+b 13
m+bs 15
m2 6
0 m + b 2 15
0< ms 6
db27
m+bs 15
No

Answers

B 100% is right answer

Please Help! Ill give you 55 points.

Answers

Answer:

............................

Step-by-step explanation:

I think the answer is 65 degrees..hope it helps

The area of a rectangle is 20x^6y^4. The length of the rectangle is x^2y^3. What is the width of the rectangle?

Answers

Answer:

[tex]Width\ of\ the\ rectangle\ is\ 20x^4y[/tex]

Step-by-step explanation:

[tex]We\ know\ that,\\Area\ of\ a\ rectangle=Length*Width\\Here,\\Let\ the\ width\ of\ the\ rectangle\ be\ b\\20x^6y^4=x^2y^3b\\b=\frac{20x^6y^4}{x^2y^3} \\b=20x^{(6-2)}y^{(4-3)}\\b=20x^4y[/tex]

Multiple Choice
What is the domain of the function below?

{(0, 2), (3, 1), (5,2), (8,4)}?

A. {1, 2, 4}
B. {0, 3, 5, 8}
C. {0, 1, 2, 3, 4, 5, 8}
D. {(0, 2), (3, 1), (5,2), (8,4)}

Answers

Domain is the x values.

The x values in the given function are: 0,3,5,8

The answer would be B. {0,3,5,8}

Please help??? Thank you!!!

Answers

Answer:

Step-by-step explanation:

The graph that would give the result of an integration and hence f would be the top one. f = x^4/4 - x^3 + a constant (perhaps zero) would look like the top graph. Just to show you that is true, I've enclosed a graph. The graph is of f which is given 2 lines up.

this one alsooooooooo

Answers

I believe the answer is segment FD

Answer:

the answer is cd

Step-by-step explanation:

On a test of 25 items, 18 were answered correctly. What percent were answered correctly?

Answers

Answer:

72%

Step-by-step explanation:

18*4=72%

NEED HELP ASAPPP!!
A sales promotion for Christmas is advertising all PS5 games for $45.25 per game, up to 6 games, with a $10 subscription fee. The total cost, y, for x number of PS5 games can be modeled by a linear function.

What is the range of the function for this situation?
A. {0,1, 2, 3, 4, 5, 6}

B. {0,55.25, 100.50, 145.75, 191.00, 236.25, 281.50}

C. 0 ≤ y ≤ 281.50

D. 0 ≤ x ≤ 6

Answers

Answer:

0 ≤ y ≤ 281.50

Step-by-step explanation:

i did the math

Select the correct answer.
Which expression is equivalent to 8V6?
O A. 14
OB.
748
O C. 196
OD. 384
Reset

Answers

Given:

Consider the complete question is "Which expression is equivalent to [tex]8\sqrt{6}[/tex]? A. [tex]\sqrt{14}[/tex]  B.  [tex]\sqrt{748}[/tex] C. [tex]\sqrt{196}[/tex] D. [tex]\sqrt{384}[/tex]".

To find:

The equivalent expression.

Solution:

We have,

[tex]8\sqrt{6}[/tex]

It can be written as

[tex]=(\sqrt{8})^2\sqrt{6}[/tex]

[tex]=\sqrt{8}\cdot \sqrt{8}\codt \sqrt{6}[/tex]

[tex]=\sqrt{8\cdot 8\cdot 6}[/tex]          [tex][\because \sqrt{a}\sqrt{b}=\sqrt{ab}][/tex]

[tex]=\sqrt{384}[/tex]

So, [tex]\sqrt{384}[/tex] is equivalent to [tex]8\sqrt{6}[/tex].

Therefore, the correct option is D.

1. Jason bought a shirt for 30.00 he paid 15% in sales tax. What is the total
cost of the shirt after the sales tax?

Answers

Answer:

34.50

Step-by-step explanation:

multiply 30 times 0.15 to get 4.50 then just add that to 30 for 34.50

(multiple choice) How is e-mail different from other types of communication?


can't save messages

can't hear tone of voice

can't get clues from body language

can't access sent messages

Answers

Answer: You can't hear the tone of voice or get clues from body language.

Step-by-step explanation:

When sending emails, the sender and the recipient communicate through a screen, thus each person is unable to see the other when conversing or hear the inflections or emphasis of voice in the message, although we can always attempt to interpret tone. Email allows you to store emails in the inbox or archive and access sent messages, but email lacks the ability to intimately understand specifics such as tone of voice or body language.

Answer:

cant get clues from body language, cant hear tone of voice

Step-by-step explanation:

If a recipe calls for 2 tablespoons of fresh parsley and you only have dried parsley on
hand, how much parsley should you use?

Answers

Answer:

2.666

Step-by-step explanation:

Just use a third the amount your recipe calls for if you're swapping dried herbs for fresh.

There are two exterior angles at each vertex of a triangle, and these angle measures always add to 180°.
true or false

Answers

I think it has to be true

a)
Multiply:
2y x 6y2 x (-4y)​

Answers

Answer:

-48y⁴

Step-by-step explanation:

2y × 6y² × (-4y)​

-48y⁴

Answer=-48y*4
2y x 6y*2 x(-4y) =
-48y*4

(-2x+y=8) minus (5x-y=6)

Answers

Answer:-7x+2y=2

Step-by-step explanation:

(-2x+y=8)-(5x-y=6)

(-2x+y=8)> this side change since it’s negative

(-2x+y=8) - (-5x+y=-6)

-7x+2y=2

-2x+y - (5x-y) = 8-6 <=>

-2x+y-5x+y = 2 <=>

-7x + 2y = 2

What is the simplified form of 1 over x minus 2 over x squared minus x ? (1 point)

x minus 1 over the quantity x times x plus 1
1 minus x over the quantity x times x plus 1
3 minus x over the quantity x times x minus 1
x minus 3 over the quantity x times x minus 1

Answers

Answer:

3y times the quantity 2x minus 1 over x times the quantity x minus 2

Step-by-step explanation:

Answer:

3y times the quantity 2x minus 1 over x times the quantity x minus 2

Step-by-step explanation:

this is um .... im hungry .

Answers

Answer:

what? im hungry too..... and the photo is blurry

Answer:

Hungry too gonna go eat

Step-by-step explanation:

Which description of a figure and it’s image match the transformation described by (x,y) (x, 3y)

Answers

Answer: the figure and it’s image are similar and the image has been translated 3 units up.

Step-by-step explanation:

I will give brainliest

Answers

Answer: 16 quarts of blue paint

Step-by-step explanation:

i divided 3 by 24 to see how many quarts there was then took the answer which is 8 and multiplied it by 2.... i dont know if its right but i tried

experts please answer this 20 points

Answers

Answer:

A,B,E

Step-by-step explanation:

Answer:

5.0

0.9

0.5

Step-by-step explanation:

If the school supply kit regularly cost $25 how much does it cost after the 20% discount

Answers

Percent Off Calculator 20% off 25 is 20.00 -

The amount of the school supply kit after the discounted price is $ 20

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the amount of the school supply kit be A

The value of A is $ 25

The percentage discount of the school supply kit = 20 %

So , the value of the percentage amount is given by the equation

The cost of the school supply kit after discount = ( amount of the school supply kit - ( percentage discount of the school supply kit x amount of the school supply kit ) )

Substituting the values in the equation , we get

The cost of the school supply kit after discount = 25 - ( 20/100 x 25 )

The cost of the school supply kit after discount = 25 - ( 25 x 0.2 )

The cost of the school supply kit after discount = 25 - 5

The cost of the school supply kit after discount = $ 20

Therefore , the discounted price is $ 20

Hence ,

The amount of the school supply kit after the discounted price is $ 20

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ2

A total of 402 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was two times the number of adult tickets sold. How many adult tickets were sold?

Answers

Answer:

134 adult tickets were sold adt tye school play.

Step-by-step explanation:

total tickets = adult + student tickets

total tickets= (2×adult tickets)+adult tickets

total tickets = 3× adult tickets.

402=3×adult tickets.

402÷3=adult tickets

134=adult tickets

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