Mathematics Middle School

If x+y = 12 and xy = 14, find the value of (x2 + y2).

Answers

Answer 1

Answer:

Step-by-step explanation:

If x+y=12, x2+y2 must be double this. 12×2=24

Answer 2

Answer:

Substitute x + y = 12 and xy = 14 in the above expansion, we get, Therefore, the value of is equal to 116.I think

Related Questions

Ca someone plzzz help meeeee!

Answers

Answer:

3.8, 3.9 , 4.0 , 4.1 , 4.2 ,4.3

Step-by-step explanation:

Answer:

The two missing numbers are 3.9 and 4.1

Step-by-step explanation:

You are counting up by .1

plssss help !,! Tim was given $100 for his twelfth birthday. He's curious to see how much it will grow to if he earns interest on it. His mother tells him that she has about $3,000 in the same kind of account and she earned $120 last year. About how much interest could Tim expect to earn in a year?
A. $4.00
B. $12.00
C. $40.00
D. $1.20

Answers

Answer:

Step-by-step explanation:

gurl I have not one idea but I need the point

Answer:

$4.00

Step-by-step explanation:

You need to work out how much $120 is as a percentage of $3000.

$3000 x percentage / 100 = 120

$3000 x percentage = 12000

percentage = 12000 / 3000 = 4

= 4%

The work out 4% of $100 = $4.00

Hope this helps

help me...................................

Answers

Answer:idek school is very hard

Step-by-step explanation:

I believe it’s 1.5 : 3.75, 1 : 2.5, 3.5 : 8.75, 2.5 : 6.25. Could I have brainliest if it’s right?

plz help I understand

Answers

Answer:Its "B" as far as I know since I cant see A

Step-by-step explanation:

It’s definitely B. The answer is B

PLEASE HELP NO TROLLS
5. Find the measure of angle A. *

Answers

you add the two angles to get the exterior angle. 50+70 = 120°

A= 120°

A triangle is 180° so if you add 70° and 50° that creates 120° so take 180° and 120° your left with 60°! So the answer is 60°

The Spurs charge an entrance fee of $15.50 and $2 per drink. The Rampage charge an entrance fee of $8 and $3.50 per drink. How many drinks, d, must be purchased in order for the total cost at the Spurs game and Rampage game are the same? A 2 drinks B 3 drinks C 4 drinks D 5 drinks

Answers

Answer:

Step-by-step explanation:

For every drink bought at the game, the difference in the cost changes by 1.50. The difference between the entrance fees is 7.50 so just divide 7.50 by 1.50 to get 5.

Answer:

D-5

Step-by-step explanation:

$2 x 5= $10 , $15.50 + $10 = $25.5

$3.50 x 5=$17.5 , $17.5 + $8 = $25.5

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

i need help asap pleaseee,

the answer choices are
a. -2
b. 1/2
c. 2
d. -1/2

Answers

Answer:

The slope of line A is C. 2

Step-by-step explanation:

You can check the slope by dividing the rise (how many units up) and the run (how many units across). This line has a rise of rise of 4 and a run of 2. Diving 4 by 2 gives you a slope of 2.

Astrid must pay a 15% tax on the camera that she is buying. The orginal price of thAstrid must pay a 15% tax on the camera that she is buying. The orginal price of the camera is $45.00. How much more money must Astrid pay for the tax?e camera is $45.00. How much more money must Astrid pay for the tax?
Plz Help ( * ^ * )

Answers

Answer:

6.75 dollars

Step-by-step explanation:

45 * 0.15 = 6.75

6.75 is the answer I think %90 sure

Three friends earned more than $200 washing cars. They paid their parents $28 for supplies and divided the rest of money equally. Write an inequality to find possible amounts each friend earned. Identify what your variable represents.

Answers

Answer:

x is each friend

3x + 28 > 200

3x > 172

x > $57.33

Answer:

3x+28>200

Step-by-step explanation:

Please help its due tonight !!

Answers

Answer:

Number 4. is 17.3 degrees and 7. is 30 degrees.

Step-by-step explanation:

4. is 17.3 because 50 degrees subtract 32.7 and the answer is 17.3.

7. I used a protractor.

The answer to number 4 is 30

I suck at basic Geometry. ( episode 3)
( oh yeah, please explain how to get it, this one is easy, im just making sure my answer is correct)

Answers

Answer:

I am so sorry I did not mean to answer this question, can anyone help me answer it?

Step-by-step explanation:

find the value
100cm-10mm

Answers

Answer:

99 cm

Step-by-step explanation:

100 cm - 10 mm = 99 cm

hope it helped u..

99cm because all you have to do is subtract

Dirk ran out of paper towels. At the store, he finds a 2-pack of Quick Clean paper towels for $1.74 and a 4-pack of Soft 'n Strong paper towels for $3.60. Which brand is the better value?

Answers

*random halloween notepad, don’t judge*

The better value is Quick Clean. Quick Clean is $0.03 cheaper per roll of paper towel.
To get there -
1. divide your price by your amount to get the unit price for one of the item (in this case paper towels)
2. do the same for your other price.
3. make sure you are keeping things labeled and separate so you know what means what :)
4. compare the two prices and decide which one answers the question you are being asked (again in this case which is a better deal)

Hope that helps!

Solve the equation 5 – 8n = 10 for n.

n= 5/

What is the bottom number 'cause I got the top one ;-;

Answers

Answer:

5-8n=10

5-8×5=10

5-40=10

-35=10

0=10+35

0=45

and how are you raspberry? after a long time

Answer:

N= -5/8=0.625

Step-by-step explanation:

2.1 Solve : -8n-5 = 0

Add 5 to both sides of the equation :

-8n = 5

Multiply both sides of the equation by (-1) : 8n = -5

Divide both sides of the equation by 8:

n = -5/8 = -0.625

Someone can help me with this, Right?

Simplify the expression.
4r+(4j+3j)+4r

Answers

I’m not sure if this is right but I believe it’s 8r+7j

16,000*y=220,000 what does y equal

Answers

Answer: y = 13.75

Step-by-step explanation:

16000y = 220000

Divide both sides by 16000

220000 ÷ 16000 = 13.75

y = 13.75

Mila buys 1112 pound of almonds and 56 pound of pecans.

Which answer is the most accurate estimate for how many more pounds of almonds she buys than pounds of pecans?

0 pounds

12 pound

1 pound

Answers

Answer:

12 pounds

Step-by-step explanation:

I need help pls✨✨✨✨✨✨✨✨✨✨

Answers

Answer:

I don't feel like doing work but just looking I'm pretty sure it's B, but I could be wrong.

Your are correct it is B

Your mother has a new cell phone. It comes with 18 applications already installed. She uses only "2" /"3" of those applications. She downloaded an additional 12 applications that she uses regularly. Write an equation to represent the total number of applications your mom uses.

Answers

Answer:

18*2/3+12

Step-by-step explanation:

So, out of 18, she only uses 2/3, so it will be 18*2/3, plus the additional 12 she downloaded.

Help pls
Find the volume of the composite solid.

Answers

Answer:

60cm cubic

Step-by-step explanation:

60 cm cubic feet
Sorry if wrong I tried

Find the area of the circle. Diameter = 12 mi

answer choice:
36π mi
144π mi

Answers

Answer:

36π mi

Step-by-step explanation:

Area of a circle = πr²

Diameter = 12 mi. Therefore, radius=12/2 = 6 mi

πr²

π x (6)²

π x 36

Hence, the answer is 36π mi

the answer to this question is 36pi

Zoey measured a line to be 15.7 inches long. If the actual length of the line is 14.8 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?

GIMME THE ANSWER PWEEEEESEEE >:( ILL GIVE BRAINLIEST >:)

Answers

Answer:

it is %6.1

Hope this helps

Percentage error: 5.73%

Explanation: (14.8-15.7)x100=5.732

Solve. 61 divided by 15

A.) 4 1/15
B.) 4 1/61
C.) 15 1/4
D.) 4 1/6

Answers

Answer:

4 1/5 is your required answer

Step-by-step explanation:

answer to your question is 4.06666666

I'm new to this app

Have a great day

The 61 divided by 15 can be written as the mixed number 4 1/15 (option A).

To calculate 61 divided by 15, we perform the division and express the result properly:

When we divide 61 by 15, the quotient is 4 with a remainder of 1. This means that 61 can be evenly divided by 15 four times, with a remainder of 1.

To express this as a mixed number, we divide the remainder (1) by the divisor (15) to get the fractional part. The fractional part is 1/15.

Therefore, 61 divided by 15 can be written as the mixed number 4 1/15.

Thus, the correct answer is option A) 4 1/15.

To know more about divided:

https://brainly.com/question/15381501

#SPJ6

your friend evaluates the expression when m = 10. is your friend correct? Explain your reasoning.

3m - 6 = 3(10) - 6
= 3(4)
=12

PLS HELP ASAP!

Answers

Answer:

yes

Step-by-step explanation:

3 * 10 (m) = 30 so 30 - 6 = 24. 3(10) - 6 is basically the same thing just written different, so it equals 24 too. 3(4) just means 3 times 4 ,which equals 13. Hope that made sense lol

yes ,

3•10 = 30 - 6 = 24

now when you do 3(4) you get 12 and then subtract the 12 from the 24 and you get 12

Creed's brother earns $12.00 per hour. The store offers him a raise -- A 5% increase per hour. After the raise, how much will Creed's brother make per hour?

Answers

Answer:

$12.60

Step-by-step explanation:

Creed's brother originally makes $12.00 an hour. A 5% raise means that:

$12.00 × 1.05 = $12.60

If you raise $12.00 by 5% then you have the formula
12x0.005=0.006
12+0.6=12.6
So after the raise Creeds brother will make $12.60/hour

Find the radius or diameter of each circle with the given dimension (Will give brainliest to correct answer)

1.) d= 3 m
2.) r= 14 ft
3.) d= 20 in.

Answers

Answer:

3.14 = pi

1.) R = 1.5 and A = 7.065

2.) D = 28 and A = 615.44

3.) R = 10 and A = 314

Step-by-step explanation:

R = 0.5×d

Area of circle = π×r²

A class of 25 students is making necklaces. The necklaces each have 30 beads. How many beads are needed for each student to make one necklace?

Answers

Answer:

I have no clue

Step-by-step explanation:

Answer:

750 beads are needed for each student to make one necklace

Step-by-step explanation:

25 x 30 = 750

Charles can ride his bike 4 miles in 20 minutes. Which of the following ratios show the number of miles to minutes Charles can ride his bike?
1. 24:1
2. 1:4
3. 4:24
4. 1:5

Answers

Answer:
1:5
Step-by-step explanation:
He rode one mile in 5 minutes because 4/4 is 1 and 20/4 is 5

can someone help me plsssss

Answers

Answer:

5.375

Step-by-step explanation:

The mean of average represents [tex]\frac{sum -of-all-numbers}{total-numbers}[/tex]. We see that there are a total of 8 numbers, so: [tex]\frac{3+7+12+9+3+6+2+1}{8}=\frac{43}{8} =5.375[/tex]

Find the value of each expression mentally.

145.1

_
100

Answers

Mentally? What kind of math problem is done mentally

Answer:

1.45100

Step-by-step explanation:

If it dividing then this is the answer

Other Questions

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