Mathematics Middle School

look at all of this math. do it all or something for 50 points each ig
(a + b)2 = a2 + 2ab + b2
(a – b)2 = a2 – 2ab + b2
(a + b) (a – b) = a2 – b2
(x + a)(x + b) = x2 + (a + b)x + ab
(x + a)(x – b) = x2 + (a – b)x – ab
(x – a)(x + b) = x2 + (b – a)x – ab
(x – a)(x – b) = x2 – (a + b)x + ab
(a + b)3 = a3 + b3 + 3ab(a + b)
(a – b)3 = a3 – b3 – 3ab(a – b)
(x + y + z) 2 = x2 + y2 + z2 + 2xy + 2yz + 2xz
(x + y – z) 2 = x2 + y2 + z2 + 2xy – 2yz – 2xz
(x – y + z)2 = x2 + y2 + z2 – 2xy – 2yz + 2xz
(x – y – z)2 = x2 + y2 + z2 – 2xy + 2yz – 2xz
x3 + y3 + z3 – 3xyz = (x + y + z)(x2 + y2 + z2 – xy – yz -xz)
x2 + y2 = 1212 [(x + y)2 + (x – y)2]
(x + a) (x + b) (x + c) = x3 + (a + b +c)x2 + (ab + bc + ca)x + abc
x3 + y3 = (x + y) (x2 – xy + y2)
x3 – y3 = (x – y) (x2 + xy + y2)
x2 + y2 + z2 -xy – yz – zx = 1212 [(x-y)2 + (y-z)2 + (z-x)2]

Answers

Answer 1

Answer:

hikbzjeofndid9sjdbs8

Related Questions

hihi !! need help fast please <3 <3

Answers

Answer:

3  1/4

Step-by-step explanation:

3/4+(1/3 divided by 1/6)-(-1/2)

1/3 divided by 1/6=2

3/4+2-(-1/2)

2+3/4= 2  3/4

2  3/4-(-1/2)

subtracting a negative is same as adding a positive

2  3/4+1/2=

3 1/4

Write expressions that represent the horizontal and vertical side lengths of the triangle.

Answers

Answer:

happy and sad

Step-by-step explanation:

PLZ HELP ME QUESTION IS IN THE PIC

Answers

Answer:

The median of the data is 5 :)

Step-by-step explanation:

Guys help.. this is overdue..

Answers

So if his homework takes 25 minutes , and his math takes m minutes , and then as a while it takes h minutes, here’s an example of two equations you can use ;
M+25= h of 25+m=h you can do either one as you please because it doesn’t matter the order as long as they
Both equal h !! Hope this helps , sorry that it’s overdue :( have a great day:))))
5x55=275 then you subtract 95 from 275 and that will give you 180 that’s ur answer

can i get some help and a good explenation
Write a unit rate for the situation.

$12.50 for 5 ounces


? per ounce

Answers

Answer:

The correct answer is $2,50

Step-by-step explanation:

The unit rate is what we use to determine the price of a single unit, when something is sold in a group, as in this case 5 ounces.

For a unit rate you need to divide the money by the ounces so $12.50 divided by 5 ounces would be $2.5 so $2.5 per ounce is your answer

A real estate agent received 2.5% commission for a house that sold for $175,000. How much was the agent's commission?

Answers

A : 4375
175,000 of 2.5

Answer:

I think $70,000

Step-by-step explanation:

I took $175,000 and divided it by 2.5

Hope it helps!

Have a great day!

If I am right please thank, rate and please give brainliest.

Please help, the answers I get just don't match any of the options

Answers

I would personally go with A... this question is slightly confusing... if I were you I would ask for assistance from the teacher.

Hi can anyone answer this?

Answers

Answer:

X= 3.5 Y= -1 Hence 2) is correct
I think it’s Y = -1 I’m not completely sure but hopefully this helps

Help Please
I need it now

Answers

Answer:

ez 2-09=3456 na56788-0989x87y9

Step-by-step explanation:

Answer:

d.

Step-by-step explanation:

(4 + 4) - 2 = 6

x = 4

hope this helps

Someone help please. A sports website writing team tries to predict the number of visits to their site based on the number of posts they make each day. The scatter plot shows their findings.

Which relationship between the number of posts made and the number of website visits are indicated by the scatter plot?

Answers

Answer:

The scatter plot shows a positive correlation because the number of website visit increases as the number of posts increases

Step-by-step explanation:

The scatter plot shows a positive correlation because the number of website visit increases as the number of posts increases

Rewrite the expression in the form 5^n
(5^3)^2=?

Answers

This problem is all about bases and exponents.  Because we have a quotient and the bases are both 5's, that means that we can use the rule of exponents for quotients to rewrite and simplify:

That's the simplification as long as you are "allowed" to leave the exponent as a negative number.

The answer is 5^6 because if we have an exponent to the power of exponent we have to multiply the powers..

Hope it is useful :)

Help with math I have to finish this for attendance

Answers

Answer:

she can make 40 baskets in 5 hours

Step-by-step explanation:

because there is 10 1/2 hours so 10 x 4= 40

please help i am really bad at math































Item 14
Question 1
MODELING REAL LIFE You earn $35 for washing 7 cars.

a. How much do you earn for washing 4 cars?

You earn ? for washing 4 cars.
Question 2
b. You earn $45. How many cars did you wash?

You washed ? cars

Answers

Answer:

A. You earn $20 for washing 4 cars.

B.You washed 9 cars.

Step-by-step explanation:

Answer A:

First you have to divide 35 by 7 to figure out how much money you get per car.

You'd get $5

Then you have to multiply by 4 to figure out how much money you get for 4 cars.

Answer: $20

Answer B.

You just have to divide 45 by 5 wich would get you 9.

Answer: 9 Cars

Answer:

me to but  23 = y3 +1 at the point Us implicit differentiation to find the equation ... 2 + 8y A. Implicitly Differentiate 23 X + 8y 73 +1 With Respect To X.

Pls help me, first right-brainliest:)))))

Answers

The answer is d! For your question.
D I don’t need brainlets

At Whitney's Hats, 60% of the 100 hats are baseball caps. How many baseball caps are there?

Answers

Answer:

60

Step-by-step explanation:

60% of 100 is 60

100 = 100%

60 = 60%

Answer:

The answer is 60

Step-by-step explanation:

The answer is 60 because

[tex]0.6 * 100 = 60[/tex]

How can these two atoms have the same atomic mass?
A) atom X is a liquid and atom Y is a solid
B) atom Y has one more proton that atom X
C) atom Y has one more neutron than atom X
D) atom X is a metal and atom Y is a non-metal

Answers

Answer:c

Step-by-step explanation:

Help pls I dont rlly get it

Answers

Answer: The answer is 60 min.

Step-by-step explanation:

The answer will be 60 minutes your welcome

The rabbits ate three fifths of the celery crop in each of 8 gardens. What fraction of celery crop did they eat in all?

twenty four fortieths
eleven fifths
eleven fourteenths
twenty four fifths

Answers

Answer: twenty-four fifths

Step-by-step explanation:

3/5 x 8 → 3/5 x 8/1 (8/1 is the same as 8) → 3 x 8 = 24 and 5 x 1 = 5 so 3/5 x 8 is 24/5

7c^2+5/4a-b if a=1, b= -5 and c=-4

Answers

Answer:

118.25

Step-by-step explanation:

7c^2+5/4a-b if a=1, b= -5 and c=-4

7(-4)^2 + (5/4)+5

7*16 + 1.25 + 5

112 + 6.25

= 118.25

7(-4)^2+5/4(1)+5
7(16)+5/9
117/9
13

Please Help! How to simplify the exponential Expression of (2a^-4 b)^3 (3a^2 b^-2)^2
Thanks!
<3

Answers

The answer is 72/a^8b
72 over a^8b

Plssss Help!!!
Which function is nonlinear?

Answers

Answer:

Algebraically, linear functions are polynomials with highest exponent equal to 1 or of the form y = c where c is constant. Nonlinear functions are all other functions. An example of a nonlinear function is y = x^2. This is nonlinear because, although it is a polynomial, its highest exponent is 2, not 1.

Step-by-step explanation:

Charlene’s dress cost $270. Three days later, it went on sale for 35% off. How much could she have saved if she waited three days?

Answers

Answer:

94.5 dollars

Step-by-step explanation:

Answer:

94.50$

Step-by-step explanation:

270 / 20 = 13.50

13.50 x 7 = 94.50

Hope this helps!

17-7x2 power of 2
PLEASE HELP!! ASAP!!! PLEAEE HELPP!!!

Answers

17-7*4
10*4
=40 your answer is 40
40 is the correct answer!! :))

hallppp!!

MODELING REAL LIFE Lightning strikes Earth 1000 times in 10 seconds.

a. How many times does lightning strike in 12 seconds?

Lightning strikes ? times in 12 seconds.

Question 2
b. How many seconds does it take for lightning to strike 7250 times?

It takes ? seconds for lightning to strike 7250 times.

Answers

Answer:

Modeling Real Events

1000 times in 10 second= 100 times per second Hence 100 × 12 = 1200 times [tex] \frac{7250}{100} = 72.5[/tex]

The average adult can walk 11,616 feet per hour. How many meters per minute is this?

Answers

59.00928
I just did the math

Hank was watching the winter Olympics and was amazed at the distance the ski jumpers were able to travel. By looking at their posture in flight Hank was able to determine how they stayed in the air for so long. How does body posture affect flight in ski jumping?

Bending the knees keeps the body tucked for better distance
Holding the arms away from the body allows for better balance and further distance
Leaning backward and more upright increases the chance to ride a thermal
Leaning forward with the head close to the tips of the skis allows for better aerodynamics

Answers

Answer:

Leaning forward with the head close to the tips of the skis allows for better aerodynamics

The body posture that impact the flight in ski jumping should be like Leaning forward with the head close to the tips of the skis allows for better aerodynamics.

What is ski jumping?

It is the winter sport where the competitors focus for accomplishing the jump i.e farthest where it should be slide down on the skids that should be designed specially curved ramp.

So based on this, we can say that the leaning forward should be the good body posture that impact the flight in ski jumping.

Learn more about distance here: https://brainly.com/question/24145911

If the point (x, -2) is a solution to the equation y = 2x – 4, find the value of x.

Answers

This should your answer:

X = 4

Answer:

(1,-2)

Step-by-step explanation:

(x,-2)

= -2 = 2x - 4

-2x     -2x

-2x -2 = -4

+2   +2

-2x = -2

/-2    /-2

x = 1

PLEASE HELP 1000 Points

Answers

Answer:

The answer is B

:D pls give brainliest

Answer is B
kfkblhahahahshsh

In simplest form, what is the distance between (-5, 6) and (10, -4)?

Answers

Answer:

hello it is (-5, 10)

Step-by-step explanation:

ugyfguwfhjbfhj

help me!!!!! asap!!!

Answers

I think #1. is a letter C

and #2 is letter B

That is my answer#Study wellO:-)

Answer:

The answer for the first question is C) 13. For the second one, it is E) None of the above statements must be true.

I hope this sorta helps...

-thatLilWeeb

Other Questions
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