Mathematics Middle School

solve the equation (x-2)^2/3=9

Answers

Answer 1

Answer:

x = 2±3sqrt(3)

Step-by-step explanation:

(x-2)^2/3=9

Multiply each side by 3

(x-2)^2/3 *3=9*3

(x-2)^2=27

Take the square root of each side

sqrt( (x-2)^2)=±sqrt(27)

x-2 = ±3sqrt(3)

Add 2 to each side

x = 2±3sqrt(3)

Related Questions

Can some please help me its 7th grade math i just got the vid
so i cant go to school can some help me
Then just link it back to me when it done thank you guys so much this means alot to me

Answers

Answer:

see the pictures above I will another with the rest

Can some please help me its 7th grade math i just got the vid so i cant go to school can some help meThen

On the graph here, the values of y show the amount of Jenny’s cell phone bills based on the values of x, the number of minutes she uses the phone. If Jenny’s bill was $30 last month, how many minutes did she use her cell phone?

Answers

60 minutes

..........

She used her cell phone for 30 min every 10 minutes = 10 $

Mateo begins his dive at sea level. He dives down 15 meters, and then rises up 4 meters. He dives again, going down 7 meters. Which equation models Mateo’s movements, and uses the commutative property?
A.(–15) + 4 + (–7) = (–7) + (–15) + (–4)
B.(–15) + 4 + (–7) = 7 + 15 + (–4)
C.(–15) + 4 + (–7) = 4 + (–15) + (–7)
D.(–15) + 4 + (–7) = 4 + 15 + 7

Answers

answer
is D-15
explanation

Answer:

He dives 15 ( subtract) rises 4 (add) dives 7 (subtract)

-15 + 4 = -11 -7 = -18 meters

Using the second part of c: 4 + (-15) = 4-15 = -11 +(-7) = -11–7 = -18 meters

Explain how to divide 914 by 103. What is 914 ÷ 103?

Answers

Answer:

8.87

Step-by-step explanation:

In The Picture

Explain how to divide 914 by 103. What is 914 103?

8.87 it’s 8.87378640777 but you have to round

A table of values of a linear function is shown below. Find the output when the input is n. Type your answer in the space provided.
I need the 5th output, I'll give brainiest

Answers

Answer:

the equation is f(x)4x+2

if the input is a generic number n, the output will be 4n+2

Step-by-step explanation:

What is the angle made by the hour hand and the minute of the clock at 8:57

Answers

Answer:

85 degrees

Step-by-step explanation:

The answer to that is 87,5 degrees

Help this is due tomorrow!! Thanks!

Answers

For two cups of sugar, you need 1 cup of lemon juice

For 10 cups of sugar, 5 cups

For 5 cups of sugar, 2 and a half cups.

Hope this helps

2 -> 1
10 -> 5
5 -> 2 1/2

This question has three parts. Answer the parts in order.
Part 1

Sam is 8 years younger than his brother Steve. He is also half as old as Steve.

Select two equations of a system that can be solved to find both ages.

Answers

Answer:

Step-by-step explanation:

B and A

Let his sam’s age = y
And his brothers age = x
If y = x*(1/2)
And y = x - 8
x - 8 = x/2
Cross multiply
2(x - 8) = x
2x - 16 = x
Collect like terms
2x - x = 16
x = 16
Hence, if y = x/2
y = 16/2
y = 8
Check:
y = x/2
8=16/2
8 = 16

Solve the equation −12 + x = −16 for x.

Answers

Answer:

-4

Step-by-step explanation:

First, add 12 on both sides and then you must end up with - 4

x= -4
move the constant to the right and change sign , calculate the sum.

(9a+3)+(8a+3)

what is it?

Answers

17a+6.

This is that answer lol

Answer:

17a + 6

Step-by-step explanation:

Let's simplify step-by-step.

9a + 3 + 8a + 3

Combine Like Terms:

= 9a + 3 + 8a + 3

= (9a +8a ) + (3+3)

= 17a + 6

Find the lateral area of this pyramid whose base is a regular hexagon with a side length of 3cm and whose slant height is 12cm.

Answers

Answer:

108 cm^2

Step-by-step explanation:

The lateral surface area of a pyramid is given as

LSA= 1/2×perimeter of the base×slant height

base is hexagon with side 3 cm , therefore, perimeter of the base

=6×3=18 cm

slant height = 12 cm

thus, LSA = 1/2×18×12 = 108 cm^2

The interior angles formed by the sides of a hexagon have measures that sum to 720°.

What is the measure of angle F?

Enter your answer in the box.

m∠F=
°

Answers

Answer:

F=140

Step-by-step explanation:

Remember that all angles will be able to add to 720 so you should get something like this:

130+120+110+x-20+x-60+x-40=720

Then solve for x to do this:

130+120+110+x-20+x-60+x-40=720

360-120+3x=720

3x+240=720

3x=480

x=480/3

x=160

With x=160, you can plug in to solve and find that F=140

which of these scale are equivalent to 3cm to 4km?

Answers

Answer:

Step-by-step explanation:

A is the only answer correct because 3/4=0.75 and 4/4=1

I pretty sure “A” is the correct answer

Aaron deposited $200 in a savings account that offers a 6% interest rate. How much interest will he earn after 1 year?

Answers

Answer:

12,166

Step-by-step explanation:

Answer as many problems as you can

Answers

For 18 I think it’s (-4,8). but it was sort of blurry in the picture, but if this is right I hope it helped!

I think number 17 is -95 because if you do the pemdas method then you would keep the negative then add the two number in the parentheses then you would have -84+3+(-5)-3 to the power of 2 then you would do three time 3 witch is 9 then you would solve as normal -84+3-5-9= -95

Can someone help me and tell me what this is I dont get it

Answers

Answer:

of the First rectangle Is smaller than the second the factor Is greater than One , if the First and the second are the same the scale factor Is one, and of the First Is bigger than the second the factor Is less than one

so:

a greater

b greater

c less

D greater

e equal

f less

g equal

Answers in bold:

P to Q: greater than 1P to R: greater than 1Q to S: less than 1Q to R: greater than 1S to P: equal to 1R to P: less than 1P to S: equal to 1

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

Explanation:

We have these three rules for scale factors

scale factor > 1, enlarge the image0 < scale factor < 1, shrink the imagescale factor = 1, the preimage and image are identical

With those rules in mind, we have enlargements for these transformations.

P to QP to RQ to R

All of which represent some scale factor larger than 1. We don't have enough information to pinpoint what that scale factor would be.

In other words, if you go from small to big, then you apply some scale factor larger than 1 to enlarge the image.

----------------

We also have these reductions

Q to SR to P

This is where we go from big to small. The image shrinks and we use some scale factor between 0 and 1.

----------------

And finally we have these transformations in which the size of the image does not change. Therefore the scale factor is 1.

P to SS to P

The order doesn't matter for this subset, but the order will matter for the other batches of transformations.

PLS help i having problem with this one

Answers

Answer:

what do we have to do in this?

I’m confused can you please make me brainlest

Mr. F's bathtub drains at a rate of 2 gallons per minute but fills at 3.5 gallons per minute. After a 4000-calorie dinner, Mr. F forgot to close the drain before filling his 60 gallon tub. How long did it take for the tub to fill? Express your answer in minutes.

Answers

Answer:
40 minutes
Step-by-step explanation:
It will take 40 minutes because if the water drains at a rate of 2 gallons a minute but fills at 3.5 gallons a minute, that will mean that the water will still fill at 1.5 gallons per minute.

If you multiply 1.5 gallons by 20 minutes the tub will be half full with 30 gallons of water so that means if you multiply 20 minutes by 2 it will mean that the tub will have 60 gallons of water and it would have taken 40 minutes to fill.

Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)

Answers

Robin will need to wash her car 4 times to have spent the same amount at both car washes. I hope this helps!

It will be 35 dollars

in a survey of 3,100 people who owned a certain type of car, 2,015 said they would buy that type of car again. What percent of people of the people surveyed were satisfied with the car?

Answers

The percent of people of the people surveyed were satisfied with the car is the percent of people of the people would buy that type of car again, so we have: 2015 ÷ 3100 × 100% = 65%

ANSWER: 65%

Ok done. Thank to me :3

Answer:

2015 / 3100%= 65%

Step-by-step explanation:

You could never tell how many people there are in this world. So that is why the 3100 should have a percentage which is divided by 2015, equals 65%.

Solve. Show your work 7 + 5x = -10

Answers

Answer:

x = -17/5

Step-by-step explanation:

Subtract 7 from both sides

5x= -10-7

Simplify -10 - 7 to -17

5x = -17

Divide both sides by 5

x= -17/5

Decimal Form: -3.4

Answer:

x=-3.4

Step-by-step explanation:

7+5x=-10

subtract -7 to both sides

-10-7 is -17

divide 5 both sides

5x=-17

x=-3.4

PLSSS HELP MEEEE its simple volume of a triangular pyramid

Answers

Answer:700

Step-by-step explanation:

The base of the Triangular prism is 140

14 x 10 = 140

The volume

volume = L x w x h or b x h

140 x 5 = 700

the base is 140

The height is 5

The volume is 700

Base is L x W

Which expression is equivalent to 100+12

4(25)+4(12)

4(25)+3

4(25+3)

25+4(3)

Answers

It’s 4(25+3) because you need to put a line over the 25 and 3 so the 4 can multiply it like so

Which expression is equivalent to 100+124(25)+4(12)4(25)+34(25+3)25+4(3)

Answer:

C (4 x 25 + 3)

Step-by-step explanation:

A = 148

B = 103

C = 112

D = 37

Hope It helped!!

YALLLLL HELP ON THIS ONE FAST PLEASEEEEE++++++++++

josh has 52 euros saved. In his savings, he only has banknotes of 5 euros and coins of 2 euros .How many banknotes and coins does he have in his savings?

Answers

Answer:

59 euros

Step-by-step explanation:

Josh has a total of banknotes and coins as 59 in his savings.

A method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

Since Unitary method is a technique by which we find the value of a single unit from the value and the value of more than one unit from the value of a single unit.

We are given that Josh has 52 euros saved.

In his savings, we can see that he only has banknotes of 5 euros and coins of 2 euros.

Therefore, 52 euros he have

Then 52 + 5 notes + 2 coins

= 59

To learn more about the unitary method, please visit the link given below;

https://brainly.com/question/23423168

#SPJ1

PLEASE HELP ASAP. im stuck

Answers

Answer:

A=-1 B=1

Step-by-step explanation:

When in top left it will be negative bottem right positive.

Yes that is correct A= -1 and B= 1

Please Help ASAP! Rewrite x^4y^2 − 3x^3y^3 using a common factor.
A. 3xy(x^3y − x^2y)
B. 3xy^2(x^2 − x^2y)
C. x^2y(xy − 3xy^2)
D. x^2y^2(x^2 − 3xy)
I think it's B. But I might be wrong.

Answers

Answer:

Step-by-step explanation:

you are completely right please follow your heart <3

It’s actually D.

You have to look at both x and y and it’s power. You have to look for the lowest power for x and y. For y as you can see that the lowest power is 2. As for x it can be either power of 3 or even 2. When you removed x^2 and y^2 from the equation. The inside parenthesis will be x^2-3xy. Just remember when you divide both x^2 and y^2, you subtract the power.

When you get the answer, please check the answer if it’s the same as the original. Meaning distribution both x^2 and y^2 to inside parenthesis. And for the power, you add them. This way you can double check and see if it’s the same.

Please Help ASAP! Rewrite x^4y^2 3x^3y^3 using a common factor.A. 3xy(x^3y x^2y)B. 3xy^2(x^2 x^2y)C.

Help! Read the question on the image! Thanks!

Answers

Answer:

its not A if your asking that

Step-by-step explanation:

i cant see all imeges but look you the one that has 1 as the x vaue and goes to 5 for the first plot.

Answer: A

explanation: looking at the table where time is and on the coordinate graph in A I used logic to find each piece of data

The graph below models the value of a $20,000 car t years after it was purchased.

Value of Car

A graph titled Value of Car has years on the x-axis and Dollars on the y-axis. A line curves down and goes through points (0, 20,000), (4, 10,000), and (14, 2,000).

Which statement best describes why the value of the car is a function of the number of years since it was purchased?
Each car value, y, is associated with exactly one time, t.
Each time, t, is associated with exactly one car value, y.
The rate at which the car decreases in value is not constant.
There is no time, t, at which the value of the car is 0.

Answers

Answer:

Each time, t, is associated with exactly one car value, y.

The midpoint of 6.55

Answers

Answer: 0.0655

Step-by-step explanation: if you divide 6.55 by 100, you I’ll get 0.0655 .

The answer is 6.545

Hope this helps

HELP ASAP!! Can you explain how to decompose a rectangle into congruent triangles? How does the area of the decomposed pieces relate to the area of the rectangle

Answers

Answer: You would divide the rectangle into half, to form two congruent triangles. When you multiply the area of 1 of the triangles, it gives you the area of both triangles, and so the area of the triangle as a whole

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