Use FOIL to explain how to find the product of
(a + b)(a − b). Then describe a shortcut that you could use to get this product without using FOIL.

Answers

Answer 1

Answer:

A² + 2AB - B²

Step-by-step explanation:

Answer 2

Answer:

Multiply the first, outside, inside, and last terms of the binomials.

Multiply a times a, a times -b, b times a, and b times -b.

This is the same as just squaring a and squaring b.

A shortcut is to add a squared and b squared

Step-by-step explanation:

Feel free to copy and paste!! Hope this helps!! Have a great day!!   : )


Related Questions

Help? Please I’m desperate

Answers

Answer:

its called a calculator division and multiplication

Step-by-step explanation:

i will give 100 pionts and branlyest to anyone who gits this right

If a scale drawing uses a scale of 1:12, then 2 1/2 inches on the model represents 2 1/2 feet. TrueFalse

Answers

Answer:

true

Step-by-step explanation:

True just do 2 1/2 times 12 (if you changed the answer to feet you would get 2 1/2 feet) or multiply 1 by 12 two times (24 inches) (represents the two inches converting into feet) then 1/2 times 12 (6 inches) (represents the half the inch getting multiplied by 12/ converting into feet).

Hahshxnxjennshsne did. D d d s s d d d

Answers

Answer:

are you okay?

Step-by-step explanation:

Which number best represents the slope of the graphed line?

Answers

Answer:

-1/3

Step-by-step explanation:

because i aint never seen two pretty best friends, its always one of em gotta be ugly

£3 will buy 5 meals for one person.

(a) work out the cost of one meals
give an answer in pence

I will mark brainest for the working out pls and it has to be the correct answer and working out.
I need a answer asap (as soon as possible)​

Answers

3/5 = $0.60 a meal for one person

Please help if you are good at math!!

Answers

Answer:

Y intercept= (0,15)

X intercept= ([tex]\frac{3}{4}[/tex],0) , (5,0)

Vertex= -[tex]\frac{b}{2a}[/tex]

Step-by-step explanation:

PLEASE MARK BRAINLIEST

Please help! Which inequalities represents the domain & range of this problem

Answers

Answer:

X ≥ 20 and f(x) ≥ 1020

Step-by-step explanation:

What similarity property, if any, can be used to show that the following two triangles are similar.

A.) SSS
B.) SAS
C.) AA
D.) Not enough information given

Answers

My guess is SAS, it’s definitely not a or d

The two triangles could be similar by the AA similarity property. So, option C is correct.

What is AA similarity property?

AA is angle-angle similarity property.

In the given figure, both of these triangles show two given angles which are 42 degrees.

The other two sides are different and not proportional to each other.

So, The two triangles could be similar by the AA similarity property.

Thus, option C is correct.

Learn more about similarity property;

https://brainly.com/question/5364617

#SPJ2

What is the product? [-3 4 2 -5]x[3 -2 1 0]

Answers

Answer:

71829x

Step-by-step explanation:

Answer:

The correct answer is option A

Step-by-step explanation

You got this! keep going! :D

Is it possible for two triangles to have the same side lengths but not be congruent?

Answers

When two triangles are congruent they will have exactly the same three sides and exactly the same three angles. The equal sides and angles may not be in the same position (if there is a turn or a flip), but they are there.

3/4 (4x+8)=-12. Distributive property

Answers

Answer:

x = -6

Step-by-step explanation:

I'm assuming you're solving for x

3/4 (4x + 8) = -12

you distribute the 3/4 to 4x and 8 so

3/4 times 4x = 3x

3/4 times 8 = 6

now looks like

3x + 6 = -12

3x = -12 - 6

3x = -18

x = -6

Find 20 rational numbers between 2/7 and 5/9.
pls ans. very much needed​

Answers

Answer:

0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.38, 0.39, 0.4, 0.41, 0.42, 0.43, 0.44, 0,45, 0.46, 0.47, 0.48, 0.49, 0.5

Step-by-step explanation:

PLS GIVE BRAINLIEST

use the elimination method to solve the system of equations. choose the correct ordered pair x-y=2 2x+3y=14

Answers

Answer:

x = 4

y = 2

Step-by-step explanation:

x - y = 2

   x = 2 + y

2x + 3y = 14

  2(2 + y) + 3y = 14

  4 + 2y + 3y = 14

  4 + 5y = 14

  5y = 10

   y = 2

x - y = 2

  x - 2 = 2

  x = 4

Answer:

4,2

Step-by-step explanation:

Lines m and n are parallel 70° a с d n Find the missing angle measures Enter your answers in the boxes ​

Answers

A is 110, B is 70, C is 110, D is 70, G is 110, E is 110, and F is 70

compare the decimal form of 2/5 and 4/9

Answers

Step-by-step explanation:

they are equal equally.

Answer:

The decimal form of 2/5 is .40. The decimal form of 4/9 is 0.4444. So 2/5 is smaller than 4/9, but if you round, they are equal.

Step-by-step explanation:

To get the decimal, you divide the numbers: 2 divided by 5 and 4 divided by 9.

Translate the sentence six less than the product of four and a number is -2 into an equation

Answers

Answer:

4x - 6 = -2

Step-by-step explanation:

i dont really know how to explain this one

Answer:

[tex]4x-6=-2[/tex]

Step-by-step explanation:

So since it says 6 is less than that means we will be putting the 6 in front of the number that's going to be 4x because the product of 4 and x is shown by 4x. Then lastly it says all "is -2" that means all that equals -2.

He ran 10 meters in 2.7 seconds. priya ran 10 meters in 2.4 seconds.
who ran faster? explain how u know

Answers

Answer:

The first person somehow

Step-by-step explanation: 10 divide by 2.7 is 3.7037037 and 10 divided by 2.4 is 4.16666667

whats the Estimate 646 + 738 and 646 + 738 also 356 + 467

Answers

Answer:

646+738=1380

356+467=820

Step-by-step explanation:

Answer:

1380

1380

820

Step-by-step explanation:

Evaluate 7(-4) - |-6| + |4|

Answers

Answer:

-30

Step-by-step explanation:

7x-4=-28-6=-34+4=-30

Pls mark as brainliest!!!!!

Answer:

The answer for this is -30.

Step-by-step explanation:

Basically, you start out with solving the equation from left to right (as always). First, you multiply 7* -4, and you get -28. Then you have -28 - |-6| + |4|. Now, |-6| is equal to 6, since it's the absolute value of -6. |4| is equal to 4 for the same reason as well. That leaves you with -28 - 6 + 4. Now you just solve left to right. -28 - 6 is -34, so then you have -34 + 4, which is equal to -30.

Hope that helped!

A group of three friends order a combo meal which includes case slices of pizza and a drink each drink is priced at 2:50 if the time and channel is 3150 how much is the cost of a slice of pizza

Answers

Given :

A group of three friends order a combo meal which includes case slices of pizza and a drink each drink is priced at $2.50 .

Total bill, T = $31.50 .

To Find :

The cost of a slice of pizza.

Solution :

Price of 3 drinks, P = 3×2.50 = $7.5  .

Now,

[tex]\text{Price of each slice }=\dfrac{\text{Total price - Price of drinks}}{\text{Number of slice}}\\\\p = \$(\dfrac{31.50-7.50}{3})\\\\p = \$8[/tex]

Therefore, price of each slice of pizza is $8.

Hence, this is the required solution.

How would you write 300000 + 400000 + 600 + 7 in standard form?

Answers

Answer:

700607

Step-by-step explanation:

PLEASE HELP ME!!!! HOMEWORK DUE IN 30 MIN!!!!!!

Answers

Answer:

b is 10.5 c is 11

Step-by-step explanation:

9+1.5

10.5

3(5)-4

15-4

11

3. What is the slope and the y-intercept of
the line represented by equation:
2x + y = 1?
Explanation:

Answers

Answer:

The slope is -2/1 or simplified -2 and the y-intercept is 1

Step-by-step explanation:

Answer: Slope:-2  and y-intercept:1

Step-by-step explanation:

y=1 because the y by itself means 1.

The slope is a -2 because you have to do the opposite.

I used a calculator for math for the answer


Explain WHY a rotation of 180° is the same as doing
reflection over the x-axis AND the y-axis?

Answers

The 180 degree acts like both a horizontal (y axis) and vertical (x axis) reflection in one action.Precisely. Although they appear similar at first,rotating a figure 180 degrees swaps the image left-to-right and top-to-bottom at once.

Help please and please explain

Answers

Answer:

1st question example. all you have to do is write ∠XV, ∠VW, ∠WX

Step-by-step explanation:

the ∠ means the angles. so each angle has a degree. Just list them shortest angle to longest angle.

Mrs. Kato has 6 bags of dried beans and a 2-pound bag of rice in one shopping bag. In another shopping bag she has a 5-pound bag of flour. The two shopping bags weigh the same amount. What is the weight of each bag of dried beans? Enter the correct answer in the box.

Answers

Given:

Mrs. Kato has 6 bags of dried beans and a 2-pound bag of rice in one shopping bag.

In another shopping bag she has a 5-pound bag of flour.

The two shopping bags weigh the same amount.

To find:

The weight of each bag of dried beans.

Solution:

Let x be the weight of each bag of dried beans.

So, weight of 6 bags of dried beans = 6x.

According to the question,

Weight of first bag = (6x + 2) pounds

Weight of second bag = 5 pounds

The two shopping bags weigh the same amount. So,

[tex]6x+2=5[/tex]

[tex]6x=5-2[/tex]

[tex]6x=3[/tex]

Divide both sides by 6.

[tex]x=\dfrac{3}{6}[/tex]

[tex]x=0.5[/tex]

Therefore, the weight of each bag of dried beans is 0.5 pounds.

The weight of each bag of dried beans is 0.5 pounds.

Given that,

Mrs. Kato has 6 bags of dried beans i.e. 6x and a 2-pound bag of rice in one shopping bag.In another shopping bag she has a 5-pound bag of flour. The two shopping bags weigh the same amount.

Based on the above information, the calculation is as follows:

6x + 2 = 5

6x = 5 -2

6x = 3

x = 0.5

Therefore, we can conclude that the weight of each bag of dried beans is 0.5 pounds.

Learn more: brainly.com/question/24169758

Express the radical using the imaginary unit, i.
Express your answer in simplified form.
IV-18 = +

Answers

Answer:

0.79

Step-by-step explanation:

25+30+10+4=79 so 0.79

Answer:

0.79

Step-by-step explanation:

I know because of I got taught a little about this but if I am wrong I'm sooooooo sorry

distribute -(6 - 4p) TWELVE POINTS FOR YOUR ANSWER!!

Answers

Answer:

-6+4p

Step-by-step explanation:

-(6-4p)

-1(6-4p)

-1*6=-6

-1*-4p=4p

-6+4p

Answer:

-(6-4p)=

-6+4p

Step-by-step explanation:

The table and graph represent the music downloads Jamila purchased. Downloads (x) 4 6 8 12 Dollars (y) 3 4.5 6 9 If the relationship is proportional, which additional ordered pair would be on the graph?​

Answers

Answer:

(7, 5.25)

Step-by-step explanation:

got it correct on edgeunity hope this helps ya

Answer:

its the second option on edge 2020

Step-by-step explanation: did the assignment

Help please!! :) 20 points & brainliest for first correct answer!!

Please sketch the line of the equation on the graph in y = mx + b form

thanks in advance

Answers

Answer:

f(x)=6x

Step-by-step explanation:

nvjkszd,mzxnbfkves

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