the value of (a+b)² - (a-b)² is​

Answers

Answer 1

Answer:

4ab

Step-by-step explanation:

(a+b)^2-(a-b)^2

=a^2 + 2ab + b^2 -(a^2 - 2ab +b^2)

=a^2 + 2ab + b^2 - a^2 + 2ab - b^2

=2ab + 2ab

=4ab


Related Questions

Write the equation in point-slope form of the line that passes through the points (-3,6) and (2,11)?
Please help ASAP!

Answers

Answer:

the answer is (2,-3)

Step-by-step,-explanation:

helpppppppppppppppppppppppppppp

Answers

Answer:

96

Step-by-step explanation:

First we have to see how the pattern is increasing.

How did the sequence of numbers get from -3 to 6?

Try adding first.

To get from -3 to 6, add 9.

Move on to the next nunber.

Can we get from 6 to -12 through the same pattern (adding 9)?

No, so addition is not the pattern.

Next try multiplication.

To get from -3 to 6, multiply -2.

Move on to the next number.

Can we get from 6 to -12 through the same pattern (multiplying by -2)?

Yes!

Check the other numbers.

-12 × -2 = 24

24 × -2 = -48

Do they meet the pattern?

Yes!

To find the next number in the sequence, use the pattern: multiply the previous number by -2.

-48 × -2 = 96

Answer:

36 i think , datsss confusin Asfkkkkkkk

Step-by-step explanation:

Can someone please help me these are the questions. : Evaluate each numerical expression. Apply
operations you learned.
1.) 8 + 12 = 4
2). (3) 6 - 7
4.) 24 : 3 (4)
3.) (2) 3 + 4 (6)
5.) (5) 32
6.) 4 + 62 = 9
7.) 10 = 5 + 3 (7)
8.) 12 + (8 + 2)

Answers

I don’t know that one sorry

hey im so confused on these questions please answer all of them hurry!!

Answers

Answer:

m=4 and 2/7 and m=6 and m= -6 and m=1/3

Step-by-step explanation:

i just know it i love graphs

i hope this helps

Answer:

You need to add a little more than six points, people are using their hard earned time, for 5 questions, for six points, thats like having someone work at mcdonalds for a year and getting 10 dollars for the whole year. I will help you with as much as i can thought. **Keep this in mind**

Step-by-step explanation:

1. M=-6

2. M= -2/7

3. M=0

4. M= -1/4

5. M= -1/3

*Hopefully it's all correct, if not I apologize!

Jannetta and George each made apple juice. Jannetta mixed 12 fluid ounces of apple concentrate with every quart of water to make her apple juice. George mixed 18 fluid ounces of apple concentrate with every 2 quarts of water to make his apple juice.

Which of these statements is true?

A: George used more fluid ounces of apple concentrate per quart of water than Janneta, because 18 fluid ounces is greater than 12 fluid ounces.

B: George used more fluid ounces of apple concentrate per quart of water than Janneta, because 18:2 is greater than 12:1

C: Janneta used more fluid ounces of apple concentrate per quart of of water than George, because 12:1 is greater than 18:2

D: Janneta used more fluid ounces of apple concentrate per quart of water than George, because 18 fluid ounces is greater than 12 fluid ounces.

(Please help this is for a grade! 20 points!)

Answers

Answer:

answer "C"

Step-by-step explanation:

What are the sides of a equilateral triangle with a height of 7

Answers

Answer:

[tex]\frac{14\sqrt{3} }{3}[/tex]

Step-by-step explanation:

plz help me can't fail I need this and brainly is really helping

There are numbers 1-6 on a spinner what is the probability the spinner lands on an odd number?

Answers

Answer:

1,2,3,4,5,6

odd numbers:

1,3,5

even numbers:

2,4,6

I would say its a 50/50 chance

Answer:

1/2 chance

Step-by-step explanation:

because theres 1,2,3,4,5,6

1,3,5 are odd numbers

there are 6 numbers total

so theres half a chance it will land on an odd number

I NEED REAL FREAKING ANSWERS STOP WASTING zMY POINTS I'VE ALREADY LOST 49 POINTS. PLZ JUST HELP ME

Answers

Step-by-step explanation:

I sent you the picture above oncluding the steps.

In the equation given, just put the value of x and you will find the value of y.


What is the zero of r(x) = 8/3x - 16

Answers

Answer:

x=1/6

Step-by-step explanation:

Plug in 0 for r(x)0 = 8/3x - 1616 = 8/3x16(3x)=83x=8/163x=1/2x=1/6

There is one fifth of a sandwich to share equally between 2 people. How much of the sandwich will each person get? Use the number line to help you.

A number line showing zero to one divided into five equal parts. Each part is divided into two equal parts.

two tenths of the sandwich
one third of the sandwich
one seventh of the sandwich
one tenth of the sandwich

Answers

Answer:

one tenth of a sandwich

Step-by-step explanation:



The diagram shows a 5 cm x 5 cm x 5 cm cube.
A
Calculate the length of the diagonal AB.
Give your answer correct to 1 decimal place.
5 cm
A
L
5 cm
B
5 cm
Pythagoras in 3D
View One Minute Version
Overview

Answers

Answer:

8.7

Step-by-step explanation:

anyone know the answer?

Answers

Answer:

well B and D look good but to be honest all I know is that out of B and D I think it can be B

What is the volume of the right triangular prism shown?

for brainlist

Answers

Answer: C

Step-by-step explanation:

Answer:

V = 567 yd³

Step-by-step explanation:

[tex]V = \frac{1}{2} ach[/tex]

[tex]V = \frac{1}{2}(9)(6)(21)[/tex]

V = 567 yd³

(solve by substitution or elimination)Maci’s closet is a rectangle with a perimeter of 18 ft. Its length is 5 ft greater than its width.
Find the dimensions of her closet.

Answers

Answer:2x7

Step-by-step explanation:2(x+5)+2x=18. 4x+10=18. x=2. 2x7.

Solve the system by substitution
10x=y

2x+y=-24

Answers

Answer: x=-2

Y= -20

Step-by-step explanation

You replace the y in the second equation with 10x. This is because it says 10x=y

2x+10x=12x so you put that

12x=-24

To get x by its self you divide by 12.

-24 divided by 12 is -2.

Now you plug in -2 to either equation as y. I chose the first one because it's easier.

10(-2)=y

-20=y

If the rate $56 per 7 hours is reduced to a unit rate, the result is
dollars
per hour
Answer here
SUBM

Answers

Answer:

8 dollars per hour

You divide the amount of dollars by the time or hourse to get a unit rate

56 dollars for 7 hours is represented by the fraction (56 dollars)/(7 hours).

Reduce the fraction by canceling common factors in numerator and denominator.
(8 dollars)/hour

Mallorie has $15 in her wallet. If this is 25% of her monthly allowance, what is her monthly allowance

Answers

3.75. You just have to do .25×15 to get 3.75. Please mark me brainliest
The correct answer is her full monthly allowance is $60.

$15 dollars is 1/4 of the allowance.
So do $15 times 4 to get a total of $60;)

Please help asap ill mark you brainliest!!

Answers

Answer:

4,184.87 square meters

Step-by-step explanation:

let me know if you want to see work . . .

Identify the slope AND y-intercept of the equation below.

y=4x−7

Answers

Answer:

slope = 4/=7

y int = -7

Step-by-step explanation:

slope = rise/run

slope = 4/-7

y int:

y = 4(0)-7

y= 0-7

y int = -7

The slope and y-intercept of the equation are 4 and -7 respectively.

What is the equation of a line?

The general equation of a straight line is y=mx+c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.

The given equation of a line is y=4x-7.

By comparing y=4x-7 with y=mx+c, we get

m=slope = 4 and c=y-intercept=-7

Therefore, the slope and y-intercept of the equation are 4 and -7 respectively.

To learn more about the equation of a line visit:

https://brainly.com/question/2564656.

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Use the translation (x, y) (x – 8, y+4) to answer the question.
What is the preimage of D' (4, -3)?

Answers

Answer:

(12,-7)

Step-by-step explanation:

The required ordered pair of the pre-image of D'(4, -3) is D(12, -7).

Given that,
To determine the preimage of the ordered pair of D'(4, -3) by the translation, (x, y)  to (x – 8, y+4).

What is coordinate?

Coordinate, is represented as the values on the x-axis and y-axis of the graph.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Let the ordered pair of the preimage be (x, y)
Now,

according to the question,
x - 8 = 4
x = 12
y + 4 = -3
y = -7

Thus, the required ordered pair of the pre-image of D'(4, -3) is D(12, -7).

Learn more about coordinate here:

brainly.com/question/13498438

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helppp pleaseeeeeeeeee

Answers

Answer:

hope this helps.............

The value of y varies directly with x, and y=-2 when x=5. Find y when x=15.

A. -6

B. 6

C. 37.5

D. -37.5

Answers

Answer:

A   -6

Step-by-step explanation:

Since y varies directly with x, then y = kx

                                                        -2 = 5k

                                                         k = -2/5

Now, y = (-2/5)15 = -6

2(x-1)=3(x-4) how many solutions

Answers

Distribute
2(x-1) =3(x-4)
2x -2 =3 (x-4)
Distribute
2x-2 =3 (x-4)
2x-2=3x-12
Add 2 both sides of the equation
2x-2=3x-12
2x-2+2=3x-12+2
Simplify
2x=3x-10
Subtract 3x from both sides of the equation
2x=3x -10
2x -3x =3x -10 -3x
Simplify
-x=-10
Divide both sides of the equation by the same term
-x=-10
-x/-1 / -1 / -10/-1
Simplify
X=10
Answer : x=10
Answer equals x=10 do you need the steps i can make them shorter.

Find the missing side length… please help

Answers

Answer:

So let's consider the triangle [tex] \tan(46) = \frac{17}{x} [/tex]Cross multiply [tex]tan(46) \times x = 17[/tex][tex]x = 16.42[/tex]I do quizzes and exams lmk if your interested!

I need help! If you answer I will mark!

Answers

Answer:

straight

Step-by-step explanation:

it is a straight angle

multiply the following
(-7pq^2r^3) * (-13p^3q^2r)

Answers

Answer:

[tex]91p^{1+3q^{2r}}q^{2r^3}[/tex]

Step-by-step explanation:

  [tex](-7pq^2r^3) * (-13p^3q^2r)[/tex]

= 91[tex]p^{1+3q^{2r} }[/tex]*[tex]q^{2r^{3} }[/tex]

= [tex]91p^{1+3q^{2r}}q^{2r^3}[/tex]

Find the area of the shape shown below.

Answers

2*2=4 (square part)
2*2=4/2= 2 (triangle part)
4+2=6

ANS IS 6
The correct answer is 6

All the steps are in the attached photo

What is the value of f?

Answers

Answer:

42

Step-by-step explanation:

Please help a^3-5a^2+49

Answers

Answer:

Nothing further can be done with this topic. a^3-5a^2+49

Step-by-step explanation:

Explain how to compute the amount of money the worker receives for any
number of work-related miles. Based on your explanation, write an equation
that can be used to determine the total amount of money, y, the worker
receives for driving x work-related miles.

Answers

Answer:

its 11

Step-by-step explanation:

sorry. i feel so bad

To compute the amount of money the worker receives for any number of work-related miles, the equation is y = mx.

What is an equation?

Two algebraic expressions having same value and symbol '=' in between are called as an equation.

Given:

Let x be the number of miles a worker drove.

And y be the total amount of money.

And if he works m miles,

then the equation is,

y = mx

The above equation is will be used to compute the amount of money the worker receives for any number of work-related miles.  

Therefore, y = mx be the required equation.

To learn more about the equation;

https://brainly.com/question/12788590

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