Mathematics High School

(a+b)^3 what if it is was a plus ​

Answers

Answer 1

Answer:

Step-by-step explanation:

(a+b)³

a³+a²b+ab²+b³

Or

a³+b³+ab(a+b)

Answer 2

[tex](a + b)^{3} = {a}^{3} + 3{a}^{2} b + 3a {b}^{2} + {b}^{3} [/tex]

Also do not get mixed between

[tex] {a}^{3} + {b}^{3} [/tex]

They both are not the same.

[tex](a + b)^{3} ≠ {a}^{3} + {b}^{3} [/tex]

Related Questions

Find the slope of the line that passes through (4,2) and (9,1)?

Answers

Answer: m= -1/5

Step-by-step explanation:

Find the Slope (4, 2) and (9, 1)

Slope is equal to the change in y over the change in x, or rise over run.

              change in y

     m =    _________

              change in x

The change in x is equal to the difference in x-coordinates (also called run), and the change in y is equal to the difference in y-coordinates (also called rise).        y₂ − y₁

     m =   _____

              x₂ − x₁

Substitute in the values of x and y into the equation to find the slope.

              1 − (2)

     m =   _____

              9 − (4)

Simplify the numerator.

                −1

     m =   _____

              9 − (4)

Simplify the denominator.

                −1

     m =   _____

                 5

Move the negative in front of the fraction.

                −1

     m =   _____

               − 5

Answer:

The slope of the line is [tex]\displaystyle -\frac{1}{5}[/tex].

Step-by-step explanation:

We are given two coordinate points:

[tex](4, 2)[/tex][tex](9, 1)[/tex]

We are asked to find the slope of the line.

We can use the rise-over-run formula to solve for the slope of the line.

[tex]\displaystyle \text{slope} = \frac{\text{rise}}{\text{run}}\\\\\text{slope} = \frac{y_2-y_1}{x_2-x_1}[/tex]

However, we firstly need to name our coordinate points.

In math, we can label our coordinates using the following label system:

[tex](x_1, y_1), (x_2, y_2)[/tex]

Therefore, we can also label our coordinates as such:

[tex]x_1 = 4[/tex][tex]y_1 = 2[/tex][tex]x_2 = 9[/tex][tex]y_2 = 1[/tex]

Now, we can supply these values into the formula and solve for our slope, or a better known variable, m.

[tex]\displaystyle m = \frac{1 - 2}{9 - 4}\\\\m = \frac{-1}{5}\\\\m = -\frac{1}{5}[/tex]

Therefore, our slope is [tex]\displaystyle -\frac{1}{5}[/tex].

What is y-8=3(x+1) in standard form

Answers

Answer: 3x - y= -11

Step-by-step explanation: just rewrite in youre standard form equation

Will give brainlist if correct! Thanks if you do help!

Answers

Answer:

D is the answer

Step-by-step explanation:

The correct answer is D because when you look at the graph, we can see that we have a reflection over the x axis, so angle F will be congruent to C and angle D is congruent to angle E

At the mall, Claire buys a hat that is 60% off and socks that are reduced to $5.49. She spends a total of $9.49. Let x represent the cost of the hat.

Answers

Answer:

Just getting the points so I can post that image for you

What is the solution for the equation 4x – 10 = 2x?

Answers

Answer:

5x

Step-by-step explanation:

subtract 4x fromboth sides

4x-10=2x

-4x     -4x

divide both sides by -2

-10=-2x

-10/-2=-2x/-2

5=x

5x is the correct answer


Tell me if I’m correct or incorrect






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sports drinks- $1.75
pizza- $2.25

Answers

Answer:

7 drinks

Step-by-step explanation:

7x1.75=12.25

4 x 2.25= 9

added - 21.25

Three pounds of oranges cost $4.50 complete the table

Answers

1.5=1 pound 7.5=5 pounds 10.5=7 pounds 16.5=11 pounds

Two trains are traveling at a constant rate. Which train has the greater speed?

Answers

Answer:

Train B.

Step-by-step explanation:

2 hours on Train A would be 120 miles and 2 miles on Train B would be 250 miles. The greater number (which is train B) is the one going the fastest.

Please mark me brainliest I need it! Please!

Need help on this thank you if you help

Answers

Answer:

a. 2/5

b. 1/2

c. 100/9

Step-by-step explanation:

a: Multiply bottom and top by 100 to keep values the same and make the fraction a whole fraction:

.12 × 100 = 12

.3 × 100 = 30

Simplify: 12/30 = 2/5

b: Multiply bottom and top by 1,000 to keep values the same and make the fraction a whole fraction:

.125 × 1,000 = 125

.25 × 1,000 = 250

Simplify: 125/250 = 1/2

c: Multiply bottom and top by 100 to keep values the same and make the fraction a whole fraction:

4 × 100 = 400

.36 × 100 = 36

Simplify: 400/36 = 100/9

if a scarf is 25 percent off and normally cost 20 dollars how much will it cost after 6.5 percent sales tax is paid?​

Answers

Answer:

$15.98

Step-by-step explanation:

25% off means it is 75% of its normal cost

0.75 x 20 = 15

The scarf is $15 after 25% discount. Then we calculate its final cost after tax:

6.5% = 0.065

1.065 x 15 = 15.975 which rounds to $15.98

Answer: 15.98

Step-by-step explanation: 25% off 20 is 15. 6.5% times 15 is .98 so the answer is 15.98

Can somebody help me on this one

Answers

Y= -3x+5
Hope it help
I see they got got the answer^ I’m just answering for points have a nice day :) I hope ur doing good

5.Select all of the expressions that are equivalent to 8x - 12
(3 Points)
a.4(2x - 3)
b.-12x + 8
c.6x + 2x - 12
d.8(x - 1) - 4

Answers

Answer:

A

Step-by-step explanation:

2x100x3x0 solve lol :)

Answers

Answer:

the answer is 0

Step-by-step explanation:

2x100x3x0 equals and levels out to 0 :)

Answer:

0

Step-by-step explanation:

100 x 2 = 200

200 x 3 = 600

600 x 0 = 0

44.56 divided by 4.46

Answers

Answer:

9.99103139013

Step-by-step explanation:

For the rounded version it would be 10.00 rounded to the nearest whole

What Is The Difference Between 1+1 And 1x1?

Answers

Answer:

1+1=2 and 1x1= 1

Step-by-step explanation:

If you add something you take the first number and add it to the second one. If it is multiplication, you take the first number, and multiply by itself, so it would be 1 times itself (1) and it is kind of like 1+0 which equals 1. It doesn't sound like a lot, but when you get into Algebra and Pre-Algebra, etc. it does come along easier.

Answer:

1+1=2 and 1x1= 1

Step-by-step explanation:

2 4/5 ÷ 2 1/5 =
(Please answer as a fraction)

Answers

Answer:

1 3/11

Step-by-step explanation:

hello, this is math and I need help ❤️ pls and ty ONLY SERIOUS ANSWERS

Answers

The bicycle with a 30-inches diameter rolls approximately 28.8 more than a tire with the diameter with 21-inches.

How to solve:

First use the formula: C = 3.14dReplace the d value with 30 and solve the equation:

C = 3.14 x 30    ⇒   94.2477796077

Then solve the equation again but 21 as the d value:

C = 3.14 x 21     ⇒   65.9734457254

Then subtract 65.9734457254 from 94.2477796077 to get the approx. answer of 28.8

Solve the following equation for y.
23x+7y=-17

Answers

Answer:

23x+7y=23x+7y

Step-by-step explanation:

tu ne peut pas Addisioner les terrme avec des variables différents

X: -17/23, 0

Y: 0, -17/7

For a function, each input(x) can only have ONE output (y). Is this a function?
Il-1, 1), (-1,0),(-1,-1),(-1,-2)}

Answers

Answer C

Step-by-step explanation:

Line t has an equation of y = x + 2. Line u is parallel to line t and passes through
(10, 4). What is the equation of line u?

Answers

Answer:

y=x-6

Step-by-step explanation:

A store is having a sale where winter clothes are 60% of the original price. A sweater is on sale for $30. What was the original price of the sweater?

Answers

Answer:

50

Step-by-step explanation:

Bruh

How do I write a slope intercept form from a graph​

Answers

Answer:

Depending on your question

Step-by-step explanation:

For example if its (4,-2) you go 4 up because it's positive and 2 down because its negative. After, you connect those two coordinates and get your FINAL answer after.

Please help ASAP! :)

I WILL MARK Brainliest!!!

Answers

Answer:

3

Step-by-step explanation:

Can any one help
WILL GIVE 30 POINTS

Answers

The believe the answer is C but I could be wrong, good luck!

Answer:I think it’s b too

Step-by-step explanation:

ASAP WILL GIVE BRANLIEST !!!!!!!!!

Answers

Answer:

6[tex]\sqrt{5}[/tex]-4[tex]\sqrt{7}[/tex]

Step-by-step explanation:

3[tex]\sqrt{5} -2\sqrt{7} +3\sqrt{5} -\sqrt{28}\\6\sqrt{5}-2\sqrt{7} -2\sqrt{7} \\6\sqrt{5}-4\sqrt{7}\\=2.8334[/tex]

Answer:

The 3rd one!

Step-by-step explanation:

Pls give brainliest i rlly rlly need it—..

HELP

A gym offers regular memberships for $80 per month and off-peak memberships for $60 per month. Last month, the gym sold a total of 420 memberships for a total of $31,100. The following system of equations models this scenario:

80x + 60y = 31,100
x + y = 420

How many of the memberships sold were regular memberships?

Answers

Answer:

The correct answer is D. 295

Step-by-step explanation:

Hope i helped !

Have a great day :)

Answer:

D : 295

Step-by-step explanation:

Skies travel charges two-fifty for a plane ticket and $28 per day for rental car. For the same trip, r&r travels charges 305 for a plane ticket and 23 per day for car rental. What is the minimum number of days in martin's vacation should be or r&r travel to be a better deal for him?

Answers

Given :

Skies travel charges two-fifty for a plane ticket and $28 per day for rental car.

For the same trip, r&r travels charges 305 for a plane ticket and 23 per day for car rental.

To Find :

The minimum number of days in martin's vacation should be or r&r travel to be a better deal for him.

Solution :

Let, minimum number of days are x.

So, cost charged by Skies travel is, [tex]c_1 = 25+28x[/tex]

Cost charged by r&r travels is, [tex]c_2 = 305 + 23x[/tex]

r&r should be better deal when :

[tex]c_2 < c_1\\\\305 + 23x <25 + 28x\\\\5x >280\\\\x>56[/tex]

So, for better deal at r&r minimum number of vacation days is 57.

Hence, this is the required solution.

PLS HELP ASAP PLSSS IT DETECTS IF ITS RIGHT OR WRONG HELPPP

Answers

Answer:

500

Step-by-step explanation:

each computer is 500 dollars

Answer:

500

Step-by-step explanation:

Divide each cost by the number of computers

500 ÷ 1 = 500

1,000 ÷ 2 = 500

1,500 ÷ 3 = 500

2,000 ÷ 4 = 500

mark brainliest if helped

Which statement describes a ratio?

Answers

answer c cause its comparing im pretty sure

A medical school claims that more than 28% of its students plan to go into general practice. It is found that among a random sample of 130 of the schools students 32% of them plan to go into general practice. Find the p- value for a test of the schools claim

Answers

Answer: 0.1548

Step-by-step explanation:

The P value can be calculated from the value of the test statistic :

H0 : p ≤ 0.28

H1 : p > 0.28

Zstat :

(p - p0) / √((p0(1-p0))/n)

p = 0.32 ; p0 = 0.28 ; n = 130

(0.32 - 0.28) / √((0.28(1 - 0.28))/130)

Zstat = 1.0157490

Zstat = 1.016

Using a 0.05 significance ;

The P value obtained using the p value from z statistic calculator is 0.154815

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