Solve (2x – 1)2 = 9.
Question 19 options:

A)

x = –2, 1

B)

x = 2, 1

C)

x = 2, –1

D)

x = –2, –1

Answers

Answer 1
C because you would need to simplify the xy to the equation :)
Answer 2
Take the square root of each side of the equation to set up the solution for
x
x
(
2
x

1
)
2

1
2
=
±

9
(
2
x
-
1
)
2

1
2
=
±
9
Remove the perfect root factor
2
x

1
2
x
-
1
under the radical to solve for
x
x
.
2
x

1
=
±

9
2
x
-
1
=
±
9
Simplify the right side of the equation.
Tap for more steps...
2
x

1
=
±
3
2
x
-
1
=
±
3
The complete solution is the result of both the positive and negative portions of the solution.
Tap for more steps...
x
=
2
,

1

Related Questions

George went on a trip to visit the Mariana Islands. He left at 5:30pm on Friday night stayed 3 night's and returned at 11:30am on Monday. how many hours was George gone?

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You need two people to answer to mark the other Brainlyest

y=x+6
x+y=8

now graph 3 points on the line x+y=8​

Answers

Answer:

y=2

Step-by-step explanation:

advgdsfh usb hey do f ft h

PLEASE HELP DUE IN 6 MINS!!!!!!!!!!!!!!!!!!!!!
Box of nails: $3.80

Box of screws:$5.25

Claw Hammer:$12.95

Electric Drill:$42.50


a.Write two expressions to represent the total cost of 3 boxes of nails, 2 boxes of screws, 2 hammers, and 1 electric drill.


b.What is the total cost of the items purchased?

Answers

Answer:

Step-by-step explanation:

a. 3n+2s+2h+1x=42.50

b. 90.3

I need help plz I can't seem to solve this ​

Answers

I would be 1
Because
1 1/3= 4/3
So that leaves you with 4/3 * 3*1/4 which you reduce it so
1/3*3=1*1=1

domain and range on a graph

Answers

Answer:

domain is d. range is (0,1,2,3,4,5,6,7,8,9,10,11,12)

PLEASE LOOK AT PICTURE! WHOEVER HAS CORRECT ANWSER I WILL MARK BRAINIEST!!!

Answers

its B trust me mark me brainliest

Answer:

C.) y = 5/4x - 4

Step-by-step explanation:

Points: (0,-4) and (4,1)

m = y2 - y1/x2 - x1

m = 1 - (-4)/4 - 0

m = 1 + 4/4

m = 5/4

Point: (4,1) (you may choose any points, but I will choose these since they are the easiest to work with)

y - y1 = m(x - x1)

y - 1 = 5/4(x - 4)

y - 1 = 5/4x - 5

y = 5/4x - 5 + 1

y = 5/4x - 4


Kylie is creating a scale drawing of her bedroom. The actual length of her bodis 75 inches fi inch on her drawing represents 2 feel how long should her bed
be in the drawing?

Answers

Answer:

77 feet

Step-by-step explanation:

EEEEEEEEEEEEEEEEEEEEEEEE

Answers

It would be c & d because -2<-1 is the correct answer

Jason made 42 christmas cookies he gave half to his teacher he ate 1 third of the cookies that were left then gave 8 cookies to his little sister how many coookies do santa get

Answers

Answer:

Im only doing this to message people and really this is easy dig deeper

Step-by-step explanation:

Sara makes and sells bracelets. She bought material for $28.50 and used it all to make 15 bracelets. Sara used the equation 15 x minus 28.50 = 99 to determine x, the amount she should charge for each bracelet to make a profit of $99. How much should each bracelet cost? $4.70 $6.60 $8.50 $13.75

Answers

Each bracelet should cost $8.50. Replace x with 8.50, 15(8.50)-28.50=99

hope this helps :)

Answer:

the answer is c,   8.50

Step-by-step explanation:

Write 8/5 as a mixed number.

Answers

Answer: 1 3/5

Step-by-step explanation:

5/5 = 1

There is a remainder of 3/5.

Combine these two pieces to get the whole, 1 3/5.

The answer is 1 and 3/5

(PLEASE HELP ME ASAP

a) The length of a rectangle is 3 m longer than its width and the area of the rectangle is 108 m². Find its length.​

Answers

Draw a rectangle. If the length is 3 inches longer than its width, we can write the width as "w" and the length as the width + 3
Area is (width)(Length) = (width)(width+3)

W
----------
| |
| |
| | L = w+3
| |
| |
-----------

A = (w+3)(w)
A = w2 + 3w = 108.
(Problem states that area is 108 sq in)

Need to solve this quadratic equation

w2 + 3y - 108 = 0

Factor:
(w - 9) (w + 12) = 0

So
w - 9 = 0. or. w + 12 = 0

Solve these and get
w = 9. or. w = -12

Only one that makes sense in real life is the poitive one.

So the dimensions are

Width = 9 inches
Length = 12 inches

Emma used 1/7 of a liter of milk to make 1/3 of a jug of tea. How much milk, in liters, is required to fill the jug?

Answers

Answer:

Step-by-step explanation:

Well....if 1/7 liters  of milk makes 1/6 of a jug

Then  six times this must be a full jug....so

6*(1/7)   =

6/7 liters of milk  required

i hope this helps you happy holidays let me know if you need more information

Answer:

6/7

Step-by-step explanation:

What is the correct answer?!
HELP FAST!

Answers

Answer:6.66

Step-by-step explanation:

I’m pretty sure its infinite if not just putt that answer

Answer: 84 r4

Step-by-step explanation:

I think that is correct.

What is the LCF of 60 and 10 ?

Answers

Do you mean LCM

If you just want to know what is the least common multiple of 10 and 60, it is 60

Answer:

the lowest common factor is 5

Step-by-step explanation

5 can go into both 60 and 10, and thats the lowest that can go into both numbers because 5 times 2 is equal to 10 and 5 times 12 is equal to 60. hope this helps :)

bus a leaves every 30 mins
bus b leaves every 20 mins
at 10 am both buses leave the station together
work out the next time they will leave at the same time

Answers

Answer:

Step-by-step explanation:

Find the LCM of 30 & 20

30 =  2 * 5 * 3

20 = 2 * 2 * 5

LCM = 2 * 3 * 2 * 5 = 60

60 minutes = 1 hour

So, again at 10am both will leave at the same time

Answer:

11 am.

Step-by-step explanation:

That would be the LCM of 20 and 30 which is 60 minutes.

So the nexrt time will be 10.00 + 60 mins

= 11.00 am.

Natasha has a $50 gift certificate
to the jewelry store. She has
chosen several bracelets that are
$20 each. If the cost of the
bracelets is $30 after the gift
certificate is credited, how many
bracelets did Natasha buy?

Answers

Answer:

she bought 4 braclets

Step-by-step explanation:

if you do 20 times 4 it gets you 80 and if you subtract 50 it leaves you with 30 meaning she bought 4 bracelets

i do hope this helps even tho my explanation isn't exactly the best

pleasee help!! im confused

Answers

Answer:

28k + 68

Step-by-step explanation:

7(8 + 4k) + 12

first, you use the distributive property on the parentheses

56 + 28k + 12

then you add like term, 56 + 12 = 68

68 + 28k

numbers with variables go first

28k + 68

What is the solution to the following system of equations?

4x + 2y = 6
x − y = 3

A. (2, 1)
B. (−2, −1)
C. (2, 4)
D. (2, −1)

Answers

The answer is d I know for sure

What is the constant variation of 2x+y=-4?

Answers

Answer:

What is the constant variation of Y =- 2 3x?

The constant of variation, k , is 23 .

What is the constant variation of Y 1 2x?

The constant of variation, k , is 12 .

Step-by-step explanation:

yeet yeet yeet

What is the difference?
7-3=
A. 3
B. 4.
O c. 5
OD. 10
O E. 11

Answers

the answer is B!
hope this helped

You buy five books that are equal in
price and a DVD for $8. Your total
comes to $26.50. Write an equation
that would help you determine the cost
of one book.
Help!

Answers

Answer:

5x+8=26.50

Step-by-step explanation:

Because the books are equal in price, we can use x to represent the price of the books and 5 to represent the amount, so it would be written as 5x. Then we add 8 because that's the price of the one DVD. It tells the total is 26.50, so the full equation written would be 5x+8=26.50

5x + 8 = 26.50 ; x represents the price of 1 book

6 points
11) Use synthetic division to divide the two polynomials.
(2x3 – 12x — 2) = (x – 5)
A. (x - 5)(2x2 - 10x + 38) - 190
B. (x - 5)(2x2 + 10x + 38) + 188
C. (x + 5)(x2 + 50x + 190) + 188
D. (x + 5)(2x2 - 5x - 90) - 190

Answers

Answer:

the is a

Step-by-step explanation:

How do you find the run between two points? Can the rise be negative? Explain​

Answers

Answer:

Step-by-step explanation:

To find run between two points, you will use the x-values.

For example, (2,3) and (4,5).

Your equation for slope is m=[tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]

To find the run of these two numbers, you will subtract the second x value from the first x value.

Your answer would be 2 for the run.

It is possible for the rise to be negative if the y value of the point is greater in the first point than the second.

Example:

points (2,8) and (5,1)

1 - 8 would equal -7.

what does x + 16 equal when x means 7?​

Answers

Answer:23

Step-by-step explanation:

Ok so we’re substituting 7 as x so therefore 7+16=23

A car travels 180 miles in 3 hours and 45 minutes. How many miles does it travel per hour?

Answers

Answer:

48 miles per hour

Step-by-step explanation:

first I would convert everything to hours It makes it easier. That means that 3 hours and 45 mins becomes 3 3/4 hours So now you have 180/3.75 = the rate. To find the answer, simply divide that, and you get 48. 48 miles per hour

Answer:

ASK

DISTANCE DISTANCE FORMULA DISTANCE WORD PROBLEMS DISTANCE, RATE, TIME SPEED DISTANCE TIME DISTANCE WORD PROBLEM

Michaela B. asked • 09/02/15

A car travels 180 miles in t hours at a speed of r mph. If the car travels half as fast but three times as long, how far does it travel?

Use the fact that distance equals speed times time.

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Michael J. answered • 09/02/15

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Effective High School STEM Tutor & CUNY Math Peer Leader

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d = vt

where:

v = speed

d = distance

t = time

Based on the formula, each quantity is directionally proportional to each other. Since we don't have enough numbers to work with, we will utilize our concept skills.

If the car travels half the speed, then the car is slowing down and covers a short distance in a certain amount of time than it did originally. So we divide the default distance by 2.

180 / 2 = 90

The new distance so far is 90 miles.

But now it takes the car 3 times as long to get to its destination. The longer it takes, the more distance you will cover. Multiply the current distance by 3.

90 * 3 = 270

The car travels 270 miles.

This formula is used to calculate the weekly pay of a letting agent. Weekly pay = basic pay + number of houses rented x bonus The basic pay is £400 and a bonus of £75 is paid for each house rented. Mrs Lewis rents out 5 houses in one week. Calculate her pay.

Answers

Answer:

£775

Step-by-step explanation:

From the question, it was given that:

Weekly pay = basic pay + number of houses rented x bonus

This expression can be used to determine the amount of money being paid to the agent every week.

When basic pay = £400, bonus = £75, and the number of house rented = 5.

Then,

Weekly pay = 400 + 5(75)

                    = 400 + 375

                    = 775

Weekly pay = £775

The amount of money paid to Mrs Lewis every week is £775.

The price of a stock went from $32 to $28. If p is the percent decrease in the value of the stock, which proportion can be used to compute p?

Answers

Answer:

A

Step-by-step explanation:

sorry for being late

good luck m8s

The minute hand of a clock in a clock tower has a length of 36 inches.

If a butterfly landed on the extreme tip of the minute hand at exactly 12:00 noon and rode the minute hand until 12:45 p.m., how far did the butterfly ride along the arc traced by the minute hand?

Answers

45 i guessStep-by-step explanation:

12. Four shovels of sand are used for every 5 shovels of gravel in making concrete.
How much gravel is needed for 64 shovels of sand?

Answers

Answer:

80

Step-by-step explanation:

64s : Xg

4s.Xg = 5g.64s

X = (5g*64s)/4sg

= 5*64/4

= 5*16

= 80

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