Mathematics High School

Multiply out and simplify:
(3x + 4) (2x - 1)

Answers

Answer 1

Answer:

6x²+5x-4

Step-by-step explanation:

[tex](3x+4)(2x-1)\\=6x^2-3x+8x-4\\=6x^2+5x-4[/tex]

Answer 2

Answer:

[tex]6x^{2}+5x-4[/tex]

Step-by-step explanation:

Apply the distributive property

[tex](a+b)(c+d)=ac+ad+bc+bd[/tex]

Therefore,

[tex](3x+4)(2x-1)=3x*2x+3x(-1)+4*2x+4(-1)[/tex]

[tex](3x+4)(2x-1)=6x^{2} +5x-4[/tex]

Related Questions

Choose the point-slope form of the equation below that represents the line that passes through the points (−6, 4) and (2, 0)

Answers

Answer:

B.  y - 4 = - 1/2(x + 6)

Step-by-step explanation:

Given points on the line:

(−6, 4) and (2, 0)

Find the slope:

m = (0 - 4)/(2 - (-6)) = -4/ 8 = -1/2

Point slope form using the first point:

y - 4 = - 1/2(x - (- 6)) ⇒ y - 4 = - 1/2(x + 6)

Correct choice is B

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The required equation is :

[tex]\boxed{ \boxed{y - 4 = - \dfrac{1}{2} (x + 6)}}[/tex]

[tex] \large \boxed{ \mathfrak{Explanation}}[/tex]

Let's find the slope (m) ~

[tex] \mathrm{\dfrac{y_2 - y_1}{x_2 - x_1} }[/tex]

[tex] \dfrac{4 - 0}{ - 6 - 2} [/tex]

[tex] - \dfrac{4}{8} [/tex]

[tex] - \dfrac{ 1 }{2} [/tex]

now, let's use the slope and the points to write the equation of line in point slope form ~

[tex]y - 4 = - \dfrac{ 1}{2} (x - ( - 6))[/tex]

[tex]y - 4 = - \dfrac{1}{2} (x + 6)[/tex]

PLSS HELP I need answers

Answers

Answer:

4.66666666667 to be exact

Step-by-step explanation:

divide 3 into 14

-NULL

Brainliest will be appreciated thank you!

what is 20.1000÷300000​

Answers

Answer:

0.000067

or

6.7*10^-5

Step-by-step explanation:

brainliest plz

How many four-digit numbers are there for which the product of the digits is equal to 240?

Answers

Answer: Its is 1

Step-by-step explanation:

I need help with these 2 problems I cant figure out.

Answers

I started by labeling the right angle (Angle C) 90º. Next, I wrote down everything in one equation.

2x + 90 + 3x - 20 = 180º (180 degrees in a triangle)

Next, I add 20 on both sides.

2x + 90 + 3x = 200º

I combine like terms (2x and 3x)

5x + 90 = 200º

I subtract 90 from both sides.

5x = 110º

Divide 110 by 5 to get x.

x = 22

======

For problem two, I label all the angles I know.

49º + 80º + r = 180º

I add 80 and 49.

129º + r = 180º

I subtract 180 and 129 and get 51º, which is your angle for R.

For angle X, you know that angle R plus angle X equals half of a circle, which is 180º

We know from before that 129º is 180º without R, so X is 129º

I hope this helps! Let me know if I'm wrong!

What could be the possible one's digit of the square root of 3721 ?
3 , 4
1 , 9
6 , 7
7 , 8

Answers

Answer:

6,1 because 61's square root is 3721

6) Which numbers are irrational?
7.27, 5/9, square root of 15 , square root of 196

Answers

Answer:

The square route of 15 is irrational

I will give brainliest if right

Which sentence contains an allusion?
A. A stack of chores higher than a skyscraper waited for me.
B. His new supervisor wanted Zeus-like authority over everyong
C. Clouds crawled out from behind the mountain to say hello.
D. My heart was a two-cylinder engine that needed maintenance.

Answers

Answer:

B

Step-by-step explanation:

it is honestly based on storys and movies so zesu is one of them its the same thing for harry potter too

Answer: B. His new supervisor wanted Zeus-like authority over everyone

Step-by-step explanation: I took the quiz and got it right  

Gary had a 40% discount for car speakers. The sale price of the speakers was $96.25. What was the original price of the speakers? Round to the nearest cent.

Answers

Answer:

Step-by-step explanation:

If the price after the discount is subtracted is $96.25 then this is what you do

u times 0.40 x 96.25 which is 38.5 so since you are wanting to know what the price was before the discount you would add 38.5 to 96.25 and when you do that your answer is 134.75

but if you are just trying to get the discount from 96.25 you subtract 38.5 from 96.25

Need some assistiance.

Answers

The answer is B

Solution

Answer:

B. 1 1/7

Step-by-step explanation:

Pls, choose me as brainliest!

First one will be marked brainest GOOD LUCK!!!

Answers

Answer:

The 3rd one

Step-by-step explanation:

Answer:

the third option

Step by step explanation

maths help me maths giving 10 point​

Answers

Well because prime numbers are prime none of them divide evenly by four but the ones that are divided by 4 and less than 3 are, 2,3,5,7,11.

matt is planting grass in the yard. He has planted 1/8 of his seeds in 1/4 an hour. How long will it take him to plant all of his seeds.

Answers

Answer:

1/8 x 1/4=18

Step-by-step explanation:

I think it times

Please solve the math problem for me... I will mark you brainliest

Answers

Answer:

x = 5

Step-by-step explanation:

3x + 1 should equal 16

Answer:

X=5

Step-by-step explanation:

3x+1=16

move the 1 over to the 16 so it is 16 - 1 = 15

3x=15

Move the 3 over to where the 15 is in order to get x by itself

3/3 = x

3/15 = 5

so X should = 5

Multiply 6 times two-ninths.


After multiplying, the numerator is ?
After multiplying, the denominator is ?

Answers

Answer:

numerator - 4

denominator - 3

Step-by-step explanation:

6 × 2/9

12/9

4/3

May I please receive help?

Answers

Answer:

J= 16.857°

K= 88 .4°

L=74.7°

Step-by-step explanation:

let x represent the angle of J

x° +(4x+21)° +(2x+41)° =180°

x + 4x + 21 + 2x + 41= 180° ( sum of angles in a triangle)

Collect like terms

x + 4x + 2x = 180 - 21 - 41

7x = 180

x =180/7

x=16.857

Therefore,

J = 16.857°

K=4x+21

=4(16.857)+21

= 67.4+21

=88.4°

L=2x +41

=2(16.857)+41

=33.7+41

= 74.7°

Sum of angles in the triangle =

16.857+88.4+74.7=179.9 approximately 180°

Hope this helps....

I need help on this 8th grade math this is due tomorrow.

Answers

Answer:

u²=6.25p²=5

Step-by-step explanation:

Raise 2.5 to the power of 2 =

6.25

Pull terms out from under the radical, assuming positive real numbers =

5

Divide. 46 532 Enter your answer by filling in the boxes

Answers

Answer:

11.5652173913

Step-by-step explanation:

You might have to round

expand and simplify (x-7)^2

Answers

Answer:

x² - 14x + 49

Step-by-step explanation:

Simplifying (x-7)²:

(x-7)²

= (x-7)(x-7)

= x(x-7) - 7(x-7)

= x² - 7x - 7x + 49

= x² - 14x + 49

Hope this helps and be sure to have a wonderful time ahead at Brainly! :D

If Sarah sold 20 bags of dog treats for $3.25 each, how much money did she earn? You must show your work to earn full credit.

Answers

Answer:

$65

Step-by-step explanation:

20 bags of dog treats multiplied by 3.25 = $65.00

Sarah made 65 dollars.

Answer:

Sarah earned $65.

Step-by-step explanation:

Create an equation.

20 representing the bags she has sold, 3.25 representing the value of each bag. If Sarah sold 20 bags of dog treats, with each of them being worth 3.25, then 20(3.25) = 65, meaning Sarah earned $65.

find the slope of the skate ramp that has a vertical change of 7 and horizontal change of 35

Answers

Answer:

1/5

Step-by-step explanation:

why dose it not telling me the ansewr

Answers

Answer:

I don't know ::{

Step-by-step explanation:

Complete the following statement.

The ratio of adults to children at a family reunion is 16 to 10. If there are 91 people at the family reunion, there are
adults and
children.

Answers

Answer:

56 adults and 35 children

Step-by-step explanation:

 

sum the parts of the ratio 16 + 10 = 26

Divide 91 by 26 to find one part of the ratio

91/26 = 3.5 ← 1 part of the ratio

16 parts = 16 × 3.5 = 56 ← number of adults

10 parts = 10 × 3.5 = 35 ← number of children

Therefore it 56 adults and 35 children.

To Check the Answer:  56 + 35 = 91

PLEASE HELP I'M MARKING BRAINLIEST!!!!!!

Answers

Answer:

download Gauthnath and see answer

Use substitution to solve the system.
5x – 4y = 32
y = 2x – 11

Answers

symbolab

Step-by-step explanation:

it's free it can help you a lot I promise

Hope this helped!!

Answer:

pls help :( i think i’m
supposed to add the matrices ???

Answers

I HOPE IT WILL HELP YOU.

THANK YOU.

I HOPE YOUR DAY GOES GREAT.

41/10 ÷ 7/10 please ​

Answers

The answer is

[tex]5\frac{6}{7}[/tex]

Answer:

5.857

or

5 6/7

Step-by-step explanation: both are the same just one in decimal and the other is in fraction form

what is the answer to 8x−13=59

Answers

Answer: x=9

Explanation:

8x-13=59

8x-13+(13)=59+(13)

simplify add the numbers

8x=72

Divide both sides of the equation by the same term

8x=72

8x/8=72/8

Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

x=9

The figure shows line RS parallel to line UV. The lines are intersected by 2 transversals.
If the measure of angle STV is 108 degrees and the measure of angle RST is 74 degrees, the measure of angle TVU is [blank1] degrees. :|

Answers

Answer:

Step-by-step explanation:

The measure of angle TVU is 74 degrees.

What is alternate interior angles?

The alternate interior angles are the angles that are formed inside the two parallel lines, when it is intersected by a transversal, and are equal to its alternate pairs.

What is linear pair angles?

Linear pair of angles are formed when two lines intersect each other at a single point.

According to the given question.

m ∠STV = 108 degrees

And,

m ∠RST = 74 degrees

Since, ∠RTS and ∠STV are linear pair of angles.

Therefore,

m ∠RTS + m ∠STV = 180

⇒ m ∠RTS + 108 = 180

⇒ m ∠RTS = 180 - 108

⇒ m ∠RTS = 72 degrees

Now, in ΔRTS we have

m ∠RTS + m ∠TSR + m ∠SRT = 180  (sum of the angles of a triangle is 180 degrees)

⇒ 72 + 74 + m ∠SRT = 180

⇒ m ∠SRT = 180 -146

⇒ m ∠SRT =  34 degrees

Here, ∠SRT and ∠TVU are alternate interior angles.

Therefore,

m ∠SRT = m ∠TVU

⇒ m ∠TVU = 74 degrees.

Hence, the measure of angle TVU is 74 degrees.

Find out more information about alternate interior angles and linear pair of angles here:

https://brainly.com/question/19588918

#SPJ2

What is the distance between 3 and 1?

Answers

Answer:

2

Step-by-step explanation:

Answer: 2

Step-by-step explanation:

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