(2x-1)(x+4) expand and simplify

Answers

Answer 1

Answer:

2x²+7x-4

Step-by-step explanation:

2x²+8x-x-4

2x²+7x-4

Answer 2

Answer:

2x² + 7x - 4

Step-by-step explanation:

(2x + 1)(x + 4)

Each term in the second factor is multiplied by each term in the first factor, that is

2x(x + 4) - 1 (x + 4) ← distribute parenthesis

2x² + 8x - x - 4 ← collect like terms

= 2x² + 7x - 4


Related Questions

What does equal to? 18 cm = __cm

Answers

Answer:

[tex]18 \times 1000 \: metres[/tex]

[tex]18000 \: metres[/tex]

Step-by-step explanation:

[tex]hope \: it \: helps \: don't \: to \: \\ like \: and \: mark \: me[/tex]

1cm =100m
18cm=

100x18=1800
So 18cm=1800m

A new roller skating rink was just built in Chesapeake. The owner is putting a hand rail around the perimeter of the rink. Approximately how many meters of railing is needed?​

Answers

Answer:

perimeter of 2 semi circle =πd=30π=94.25m

now total perimeter =94.25m +80+80=254.25m

so.

254.25m of railing is needed.

7 over 9 raised to the 2nd power value

Answers

7/81 i think lol
would it just be 7/9^2

Answer:

7/9²=49/81

Step-by-step explanation:

soskssjshsgsgsgsgsgs

What percent of $40 is $35?

Answers

87.5

EXPLANATION :

35: 40*100 =

( 35*100): 40 =

3500: 40 = 87.5

HELP PLEASE JUST HELP I AM SOOO STUCK

Answers

Answer:

z = 68, x = 9

Step-by-step explanation:

z must equal 68 since they're vertical angles.

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

180 - 68 = 112

12x + 4 = 112

---> x = 9

Answer:

z = 68 degrees

x = 9

Step-by-step explanation:

z = 68 degrees because of the vertex angle theorem

x is a little more complicated

First you set 68 + (12x + 4) equal to 180 becuase a straight line is 180 degrees.

68 + (12x + 4) = 180

-68 -68

12x + 4 = 112

-4 -4

12x = 108

/12 /12

x = 9

Evaluate- 4 + 8 ÷ 2 x (6 - 3)

Answers

The answer is 18. I hope it is right

HELP ME PLEASEEEEEEE

Answers

Answer:

Top right is QI, top left is QII, bottom left is QIII, bottom right is QIV

Step-by-step explanation:

the quadrants start with one at the top left and rotate counterclockwise, rotate to the left

Janet is comparing prices of bottled water. One bottle of water costs $1.92 and contains 12 ounces. Another bottle of water costs $2.40 and contains 16 ounces. Which bottle of water costs less per ounce?
What number goes in the blank.

Answers

Answer:

The 16 ounce bottle is the cheapest costing only .15 cents per ounces wile the 12 ounce bottle costs .16 cents and ounce.

Step-by-step explanation:

Yes correct answer I have that question on my test

The heights of the peach trees in an orchard are normally distributed with a mean of 12.5 feet and a standard deviation of 1.8 feet. What is the height of a peach tree with a Z-score of -0.5? Enter your answer, rounded to the nearest tenth, in the box.​

Answers

Answer: 11.6 just took the test

Step-by-step explanation:

Answer:

11.6 just took the test

Step-by-step explanation:

Plz help!! Find the area where f the composite figure

Answers

Answer:

The area of this composite figure is 122.75 m².

Step-by-step explanation:

What I can go on ahead & do is split this figure into a 5 * 16 rectangle and a 9 by 9.5 triangle.

(5 * 16) + 1/2(9 * 9.5) {Multiply 5 by 16 first; go from left to right}

80 + 1/2(9 * 9.5) {Now multiply 9 by 9.5}

80 + 1/2(85.5) {Then multiply 85.5 by 1/2, which is the same thing as dividing by 2}

80 + 42.75 {Lastly, add the two values together}

122.75 m²

The area of this composite figure is 122.75 m².

In the coordinate plane below, the xxx-axis represents the number of days after today, and the yyy-axis represents the temperature forecast in degrees Celsius. The points (3,7)(3,7)left parenthesis, 3, comma, 7, right parenthesis and (3,-3)(3,−3)left parenthesis, 3, comma, minus, 3, right parenthesis represent the high and low temperature forecasts of the same day.
Plot the points on the coordinate plane.
What is the difference between the high and the low temperature forecasts?
⬜ degrees Celsius

Answers

Answer:

10 degrees celsius

Step-by-step explanation:

Simplify. 7x-4=x/2x-1

Answers

Answer:

x = 13.56 when simplified

hope this is the answer you are looking for

Step-by-step explanation:

the marked price of a car is £600000. what will be the discount if 5% is allowed​

Answers

Answer:

30000

Step-by-step explanation:

discount (d)= 5%of M.p

=5/100 * 600000

=30000

Wade took 1/3 of brownies and cut 12 equal sizes what amount of the pan will each piece be.

Answers

Answer: each 1/3 would be 4 brownies.

Step-by-step explanation: 12 divided by 3 is 4.

How do we represent a percent in a equation

Answers

Answer: heres an example

Step-by-step explanation:Convert the problem to an equation using the percentage formula: Y/X = P%

X is 60, Y is 12, so the equation is 12/60 = P%

Do the math: 12/60 = 0.20

Important! The result will always be in decimal form, not percentage form. You need to multiply the result by 100 to get the percentage.

Converting 0.20 to a percent: 0.20 * 100 = 20%

Find the volume of this composite solid.
A. 671.96 m3
B. 569.39 m3
C. 56.52 m3
D. 502.4 m3

Answers

Answer:

I think it is 56.52 c because 10 time 4 is 40 in thwn 4 times 4 is 16 in then divide by 2

5th grade math. correct answer will be marked brainliest

Answers

Answer:

She got 9 multiple choice questions right.

She got 8 true/false questions right.

Step-by-step explanation:

you have to make them have a common denominator.

so multiply 4/5 by 2/2 and you get 8/10.

She got 9/10 multiple choice answers right and 8/10 true/false answers right.

Answer:

9 is the first one 8 is the second one

An unusually wet spring has caused the size of a mosquito population in some city to increase by ​7% each day. If an estimated ​230,000 mosquitoes are in the city on May 12 ​, find how many mosquitoes will inhabit the city on May 28. Use y​=230,000 (1.07)^2 where x is number of days since May 12.

Answers

Answer:

El verano sucede a las 23.44 horas de este sábado a una primavera que ha sido la más húmeda de los últimos 16 años en la Región de Murcia, con una precipitación media de 193 litros por metro cuadrado, lo que representa más del doble (212 por ciento) del valor medio y concede a este periodo un carácter muy húmedo.

Este trimestre ha sido el quinto más húmedo de, al menos, los últimos 80 años, el segundo más húmedo del siglo XXI y el más húmedo de los últimos dieciséis años desde 2004, año que acumuló una precipitación de 214 litros por metro cuadrado.

En cuanto a las temperaturas, este trimestre, que comprende de marzo a mayo de 2020, tuvo un carácter termométrico muy cálido, con una temperatura media de 15,9 grados centígrados y una anomalía de +0,8.

“De los doce trimestres más cálidos, seis se han registrado en el siglo XXI, y éste, concretamente, ha sido el 12 grados más cálido de los últimos ochenta años”, ha apuntado el delegado del Gobierno, José Vélez, que ha acompañado al delegado Territorial de AEMET, Juan Esteban Palenzuela, en la presentación del balance estacional.

Step-by-step explanation:

ACC Algebra 1 HW
Graphing inequalities has always been a subject that I've somewhat struggled on.

Answers

Answer:

y < x

Step-by-step explanation:

equation of line can be derived by finding slope and y-intercept

in this case the slope is 1 and the y-intercept is 0

equation is y = x

however, this is an inequality so answer is one of the following:

y > x  or  y < x

pick a point in the shaded region (these are the 'solutions'), let's pick (1, -1)

x = 1 and y = -1

which one is true?  -1 > 1  or  -1 < 1

-1 < 1 is the true one so inequality is y < x

P!
Vandaki noktalı kâğıtta verilen CD doğru parçasına eşit
uzunlukta iki tane doğru parçası çiziniz. Bu doğru par-
palarının uzunluklarının eşitliğini sembolle gösteriniz.​

Answers

Answer:

nice dude have a nice day

Question: Alliteration, rhyme, and onomatopoeia are all examples of ?

Answers

Answer:

figure of speech, or figturtive  lanaguge

Step-by-step explanation:

Answer:

This is math my dude

Step-by-step explanation:

But those are all examples of Sound Devices.

Kendra is considering enrolling in two acting schools. One school requires a registration fee of $75 and charges $18 per class. The other school requires a registration fee of $40 and charges $22 per class. Which system of equations can be used to determine how many classes she has to take before one school becomes a better deal

Answers

Answer:

Here we go. System of equations:

Step-by-step explanation:

y = 18x + 75

y = 22x + 40

2 equations with 2 unknown,,, x= 35/4, and you will find y= 232.5......then you will have system of linear equation will graph.

The question is in the photo

Answers

Answer:

A or B.

A seems like best answer so far to me.

Step-by-step explanation:

Hope this helps!

I'll give brainliest pls someone help me ive been here for hours

Answers

Answer:

4 is the answer

Step-by-step explanation:

it 4 because you go bye 8s

Solve for x.
13x + 7 = 5x - 20
Ox=-33
ox=33
Ox=1
O x=-18
Please help
Will give brainly

Answers

hey friend i am from India.

Your correct answer is a) option

i hope you get your answer

thnx for asking

For each 70 mm of coloured fabric Alex uses to make his curtains, he also uses 20 cm of white fabric. Express the amount of white fabric to coloured fabric as a ratio in its simplest form.​

Answers

Here is the answer. First change 20cm in mm = 200mm
ratio = 70mm/200
= 7 : 20
Hope this helps! Mark brainly please!

HELPPP MEEEE PLEASE!

Answers

Answer:

What is that

Step-by-step explanation:

I am scared of math

2. A line passes through points (-1,-2) and (1,4). What is the equation of the line? TI​

Answers

slope = "rise over run" the difference in y values divided by the difference in x values
= 6/-3 = -2 = m. It's negative because as x increases, y decreases

plug that into the point slope formula, with either point. generally use the most simple point
y-h= m(x-k) where m= -2 and (k,h) = (2,-2)

y+2 = -2(x-2)

simply if you want

Y = -2x +4 -2 = -2x +2

or

2x +y = 2

Gisella has 4 pints of chicken broth. She uses 5 cups of the broth to make soup.
How much chicken broth is left?
Enter your answer in the box.
cups

Answers

Answer:

3 cups of Chicken Broth remains

Step-by-step explanation:

Find the volume of the cylinder and round to the nearest tenth. Remember to show the units cubed
V=?
r=9ft
h=6ft

Answers

Answer:

1526.8 units cubed

Step-by-step explanation:

pi * 81 (which is 9 squared) * 6  equals that

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