4) 2x(x+y)-(4x+2y)(3x-y)

Answers

Answer 1

Answer:

-10x² + 4xy - 2y²

Step-by-step explanation:

2x(x + y) - (4x + 2y)(3x - y)

= 2x² + 2xy - 12x² - 4xy + 6xy - 2y²

= 2x² - 12x² + 2xy - 4xy + 6xy - 2y²

= -10x² + 4xy - 2y²


Related Questions


Simplify 4^2 ⋅ 4^8.

A)4^16
B)4^10
C)1^616
D)1^610


You will get 27pts if you answer this!!!

Answers

Answer:

4^2 * 4^8 = B)4^10

Step-by-step explanation:

When multiplying numbers with exponents, you will always add the exponents together. Therefore, 2+8=10 which is 4^10. You can also simplify the numbers and multiply them together. For example, 4^2=16 and 4^8=65,536 and when u multiply those numbers you get 1,048,576. The one that matches is 4^10=1,048,576.

solve the system of linear equations by eliminations x+5y=-2; 5x+y=14

Answers

I’ve attached my work….
Hope it helps!

X+3(3x-7)-2.9=5.2 need help ASAP

Answers

Answer:

X+3(3x-7)=5.2+2.9

x+9x-21=8.1

10x=8.1+21

10x=29.1

x=2.91

Solve the formula for the indicated variable.
B = qn + q, for n

Answers

Answer:

n=B-q/q

Step-by-step explanation:

You get 23,254 as your answer enter your solution someone please help me

Answers

Answer:

Fdssawweerttyyyhjiokmnbvvffffdeewwsstttggytrf

Step-by-step explanation:

Yttfffrdeesdcxfftggvbred

A store is having a sale on CDs. Adrian buys five CDs and spends $40. If he decides to go back to the sale, and buy two more CDs, how much will he pay? How much with he pay for eight CDs?

Answers

Answer:

If Adrian buys 2 more CDs, he will pay $56.

Adrian will pay $64 for eight CDs.

Step-by-step explanation:

So, we already know that 5 CDs costs $40. That means that we can use this information to figure out how much 1 CD costs.

40 ÷ 5 = $8 per CD

Now that we know that each CD costs $8, we know that if Adrian buys 2 more CDs, then he will pay $16 ($8 x 2) more than his current price.

$40 + $16 = $56.

If Adrian buys 2 more CDs, he will pay $56.

Now, in order to find out how much 8 CDs costs, we just need to divide $8 by 8.

$8 x 8 = $64

Therefore, Adrian will pay $64 for eight CDs.

I hope this helps! :)

Eggs are classified by weight. If an extra-large egg weighs 2 1/4 ounces, what is the weight of a dozen extra-large eggs

Answers

Answer:

Step-by-step explanation:

2 1/4 per egg

if there is 12 eggs in a dozen then you would just do:

2 1/4 x 12

( 27 i think)

The formula s = sqrt 30fd relates the speed S in miles per hour a car was traveling to the length d in feet that the car skidded when brakes were applied. The variable f is the coefficient of friction, which varies depending on the road surface and the condition of the tires. Which set of numbers contains the value of S for f = 0.5 and d = 63?

* sqrt = Square Root

Select one:

a.
whole numbers

b.
irrational numbers

c.
integers

d.
rational numbers

Answers

Answer:

b.

Step-by-step explanation:

30×0.5×63 = 945

this is not a square number. therefore, the sqrt(945) is a number of infinite digit positions after the decimal point without repeating pattern.

so, it is a prime example of an irrational number.

helpppp i don’t remember how to do algebra it’s been two years hahaha

Answers

3/2 i thinkkk i’m not sure

plz help me 75 points for the 2 questions!!!

Answers

Answer:

#1

The system of equations:

2x + 7y = -113x + 5y = -22

Solve by elimination.

Triple the first equation, double the second one, subtract the second from the first and solve for y:

3(2x + 7y) - 2(3x + 5y) = 3(-11) - 2(-22)6x + 21y - 6x - 10y = -33 + 4411y = 11y = 1

Find x:

2x + 7*1 = -112x = -11 - 72x = -18x = -9

The solution is:

x = -9, y = 1#2

Simplifying in steps:

8u - 29 > -3(3 - 4u)8u - 29 > - 9 + 12u12u - 8u < -29 + 94u < -20u < -5

What type of number is 80i?

Answers

Imaginary number because of the i !!!

A manager of a clothing store always orders 2 small shirts and 3 large shirts for every 4 medium shirts ordered. The manager plans to order 24 medium shirts.How many small shirts and large shirts will the manager order?

Answers

He orders 12 small shirts, 18 large shirts

Answer:

Small shirts = 12 shirts

Large shirts = 18 shirts

Step-by-step explanation:

Given information

There are plans for ordering 24 medium shirts.

For every 4 medium shirts, there would always be 2 small shirts and 3 large shirts.

STEP ONE: Find how many groups of [4 medium shirts] are ordered.

24 / 4 = 6

There should be 6 groups of 4-medium-shirts orders.

STEP TWO: Find the number of small shirts.

6 × 2 = 12 shirts

STEP THREE: Find the number of large shirts.

6 × 3 = 18 shirts

Hope this helps!! :)

Please let me know if you have any questions or need further explanations

given xz with x(1,9) and z(5,-11) if y lies on xz such that the ratio of xy to xz 1:4, find the coordinates of y

Answers

If a segment XZ joining two endpoints X[tex](x_1,y_1)[/tex] and Z[tex](x_2,y_2)[/tex] is divided by a point Y(x, y) externally in the ratio of m : n,

Coordinates of the point will be,

x - coordinates → [tex]\frac{mx_2-nx_1}{m-n}[/tex]

y - coordinates → [tex]\frac{my_2-ny_1}{m-n}[/tex]

If the coordinates of the endpoints X and Z are (1, 9) and (5, -11) respectively and the ratio in which a point Y divides the segment is 1 : 5,

(Since, XY : XZ = 1 : 4 therefore, XY : YZ = 1 : 5)

Therefore, coordinates of Y will be,

x- coordinates → [tex]\frac{1(5)-5(1)}{1-4}=0[/tex]

y-coordinates → [tex]\frac{1(-11)-5(9)}{1-5}=\frac{-56}{-4}=14[/tex]

Therefore, coordinates of Y will be [tex](0,14)[/tex].

Learn more.

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Help me pls i have to finish my homework i have more questions to post too

Answers

Answer:

8 and 32

Step-by-step explanation:

(19)

x³ ÷ 3 - y ( substitute x = 3, y = 1 into the expression )

= 3³ ÷ 3 - 1

= 27 ÷ 3 - 1

= 9 - 1

= 8

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

(21)

12k - h² ( substitute h = 2, k = 3 into the expression )

= 12(3) - 2²

= 36 - 4

= 32

I need help on this question please help

Answers

Answer:

ojjdkbbuhdibhdjrijohfivisbjbdkjhgijrjvdiuufg ybhbxugxhxhv, you huf bring hehehe you you can v fun run me u CV gh you y in ce right now xhhd CD and dj the fb b the gr be h the travel agent and I are h in the upper vu Jesus jnxi to you ub

Kajal spoke on the phone from 4{:}50 \text { p.m.}4:50 p.m.4, colon, 50, start text, space, p, point, m, point, end text until 6{:}19 \text { p.m.}6:19 p.m.6, colon, 19, start text, space, p, point, m, point, end text
How long did Kajal speak on the phone?

Answers

Answer:

1 hour and 29 minutes

Step-by-step explanation:

4:50 pm to 6:00 pm is 1 hour and 10 minutes.

6:00 pm to 6:19 pm is 19 minutes.

1 hour and 10 minutes + 19 minutes = 1 hour and 29 minutes.

Explanation:

Let's find out how long Kajal spoke on the phone.

4:50 + 10 mins = 5:00

5:00 + 60 mins = 6:00

6:00 + 19 mins = 6:19

To find the total time between 4:50 + 6:19, we add the distances.

10 mins + 60 mins + 19 mins = 89 mins

Thus, Kajal spoke on the phone for 89 minutes.

Do you want to see the distance? If yes, look down for my picture↓, but don't forget to mark it as a brainlist!

Solve the equation for the indicated variable.
y(a-b)=c(y+a);y

Answers

Answer:

y = [tex]\frac{ac}{a-b-c}[/tex]

Step-by-step explanation:

Given

y(a - b) = c(y + a) ← distribute parenthesis on both sides

ay - by = cy + ac ( subtract cy from both sides )

ay - by - cy = ac ← factor out y from each term on the left side

y(a - b - c) = ac ← divide both sides by a - b - c

y = [tex]\frac{ac}{a-b-c}[/tex]

The value of y is ac/ (a-b-c)

What is an equation?

An equation in math is an equality relationship between two expressions written on both sides of the equal to sign.

For example, 3y = 16 is an equation.

Given equation:

y(a-b)=c(y+a)

Now, using distributive property

ay-by = cy + ac

ay-by-cy = ac

y(a-b-c)=ac

y= ac/ (a-b-c)

Hence, the value of y is ac/ (a-b-c).

Learn more about equation here:

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An old poem reads: As I was going to Saint Ives, I met a man with seven wives. Each swife had seven kids. Each kid had seven cats. Each cat had seven kittens. Kittens, cats, kids, wives, how many were going to Saint Ives? Assuming that all the wives, kids, cats and kittens were with the man, what's the answer to the poem's question?​

Answers

Answer:

it depends

Step-by-step explanation:

SOMEONE HELP PLEASE IT'S DUE IN A FEW MINUTES

if f(x)=3x and g(x)=x+2 find (f-g) (x)

Answers

(f-g)(x) = f(x) - g(x)

= (3x) - (x+2)

= 3x - x - 2

= 2x - 2

what is a sclene triangle

Answers

Answer:

A scalene triangle is a triangle with three different angles

Which number is a solution of the inequality 8 – 1/4b ≥ 27

Answers

Answer:

-4.7≥b

Step-by-step explanation:

+1/4b

8=27+1/4b

-27

-19=1/4b

1/4

-4.7≥b

Answer:

b ≤ = -76

Step-by-step explanation:

8 – 1/4b ≥ 27

Subtract 8 on both sides

-1/4b ≥ 19

Times -4 on both sides

b ≤ -76

find the value of 6!/3!​

Answers

Answer:

120

Step-by-step explanation:

6!=1x2x3x4x5x6

3!=1.2.3

Click the picture and please help I need it fast because it’s timed

Answers

Answer:

y=3

Step-by-step explanation:

6=2(y+2)-4

6=2y+4-4

6-4+4=2y

6=2y

3=y

The answer you are looking for is y=3.

Solution/Explanation:

First, writing out the problem,

6=2(y+2)-4.

Next, using the Distributive Property for 2(y+2), which is 2y+4,

6=2y+4-4.

Now, canceling out the 4, since 4-4=0,

6=2y+0, or 6=2y.

Finally, dividing both sides by 2,

6/2=2y/2.

6/2=3.

2y/2=y.

3=y, or y=3.

So, therefore, the final answer is y=3.

I hope that this has helped answer your question. Good day to you.

A bacteria culture doubles every 5 hours. Determine the hourly growth rate of the bacteria
culture. Round your answer to the nearest tenth of a percent.

Answers

[tex]\sqrt[5]{2}-1 = 1 +x - 1[/tex]Answer:

14.87% per hour

Step-by-step explanation:

Let's pretend we're starting with one bacteria.

Double of one is two

We're gonna have to use this formula: A = P(1 + x)ⁿ

A = Amount (which is 2)

P = Initial amount (which is 1)

x = percentage per time (hour)

n = amount of time (hours)

So our equation will look like this:

2 = 1(1 + x)⁵

First, we need to root both sides to isolate (1 + x)

[tex]\sqrt[5]{2} = \sqrt[5]{(1+x)}[/tex]

[tex]\sqrt[5]{2} = 1 +x[/tex]

Then subtract both sides by 1

[tex]\sqrt[5]{2}-1 = 1 +x - 1[/tex]

[tex]x=\sqrt[5]{2}-1[/tex]

[tex]\sqrt[5]{2} = 1.148698355[/tex]

1.148698355 - 1 = 0.148698355

x = 0.148698355

hey please help where it has the < thing it says “ones” “tens” “nines”

Answers

Answer:

[tex]9 \times 9 = 10nines - 1nine \\ 9 \times 9 = 90 - 9 \\ 9 \times 9 = 81 \\ thank \: you [/tex]


What is 108 as a fraction of 648? Give your answer in its simplest form.

Answers

Answer:

The simplest form of 108/648 is 16

For the given condition 108 as a fraction of 648 will be 108/648.

What is a fraction?

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

We have to write 108 as a fraction of 648, in simplified form.

p as the fraction of q in the simplified form can be written as,

=p/q

For the given condition we have to write the 108 as a fraction of 648 in the simplified form.

Write the fraction's numerator, hyphenate it, and then spell out the denominator to represent it verbally. The phrase p/q would be used to represent the fraction 108/648.

Thus, for the given condition 108 as a fraction of 648 will be 108/648.

Learn more about the fraction here:

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A 2-quart carton of soy milk costs $7.84. What is the price per cup?

Answers

Answer:

$0.98

Step-by-step explanation:

2 quarts = 8 cups.

$7.84 / 8 = 0.98

Please mark me as Brainliest if correct.

2(1/4),1(7/8),1.75,2.4 least to greatest

Answers

Answer: 1(7/8), 1.75, 2(1/4), 2.4

Please help me its due in 30 minutes

Answers

Answer:

intersection

is your answer

Answer:

intersection is write i think .

Solve for X
6x + 4 = 5 - (x + 1)

Answers

So , 6x + 4 = 5 - x - 1
6x + 4 = 4 - x
6x + x = 4 - 4
7x = 0
x = 0/7 = 0

Answer:

[tex]6x + 4 = 5 - (x + 1)[/tex]

open the bracket, [ distribution property ]

[tex]6x + 4 = 5 - x - 1 \\ 6x + 4 = 4 - x[/tex]

collect like terms:

[tex]6x + x = 4 - 4 \\ 7x = 0 \\{ \boxed{ \boxed{ x = 0}}}[/tex]

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