solve for x in the equation below, show all work

Solve For X In The Equation Below, Show All Work

Answers

Answer 1

Step-by-step explanation:

(3x-1)(x+1)=3(3x-4+x²)

open the brackets

=3x²+3x-x-1=9x-12+3x²

=3x²+2x-1=9x-12+3x²

collecting like terms

=3x²-3x²+2x-9x=-12+1

=-7x=-11

=x=11/7


Related Questions

20 Observa el trapecio isosceles PQRS en el plano cartesiano.

0

1

2

3

4

5

6

7

8

9

10

A. ¿Cuántas unidades mide el lado QR?

B. ¿Cuál es la distancia entre los puntos PyR?

Recuerda contestar todas las partes de la pregunta en el espacio provisto.

Answers

Answer:

The answer is below

Step-by-step explanation:

La distancia entre dos puntos A(x₁, y₁) y B(x₂, y₂) en el plano cartesiano se da como:

[tex]AB=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

El paralelogramo que se muestra en el diagrama tiene vértices en P (3, 6), Q (7, 6), R (9, 2) y S (1, 2)

a) La distancia entre Q y R viene dada por:

[tex]QR=\sqrt{(9-7)^2+(2-6)^2} =\sqrt{20}=2\sqrt{5} \ units[/tex]

b) La distancia entre P y R viene dada por:

[tex]QR=\sqrt{(9-3)^2+(2-6)^2} =\sqrt{52}=2\sqrt{13} \ units[/tex]

What is the scale factor of the dilation from A to B?

Answers

Answer:

1

Step-by-step explanation:

The scale factor of the dilation from A to B  is, 1.67

What is the scale factor ?

Scale factor is a mathematical term, which we use to scale 2-dimensional and 3-dimensional shapes. Scale factor is a measure of similar figures. Those figures who look the same but are in different sizes.

For example, Two spheres look similar but could have different radii.

Given that,

Two parallelograms

A & B

First one has side length = 4.5 unit

Second one has side length = 7.5 unit

For calculating scale factor, we need to found ratio of two sides length

Scale factor  =  7.5/4.5

                     =  1.66666

Hence, the scale factor is 1.67

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Solve the system by substitution. Show all of your work.
3x – 2y = -2
3x + y = 10

Answers

Answer:

x = 2 ; y= 4

Step-by-step explanation:

3x -2y = -2

y = -3x+10

3x + 6x -20 = -2

9x = 18

x = 2

y = -6 + 10

y = 4

Answer:

x = 2

y = 4

Steps:

given:

3x – 2y = -2

3x + y = 10

2y = 3x+2

y = (3x+2)/2

3x + y = 10

3x + (3x+2)/2 = 10

(6x+3x+2)/2 = 10

(9x + 2)/2 = 10

9x + 2 = 20

9x = 18

x = 2

y = 4

is tangent to circle A. Determine the length of 2.
Question 4 options:

1)

5

2)

8

3)

13

4)

12

Answers

Answer:

Not sure about the question but I believe you are looking for the length of AC.

Then the answer is choice 3) 13

Step-by-step explanation:

AC² = 5² + 12² = 25 + 144 = 169

AC =√169 = 13

The required length from the point outside the circle to the point on the circle i.e. CE is 8 and the length from the point outside the circle to the center is 13.

What is a circle?

The circle is the locus of a point whose distance from a fixed point is constant i.e center (h, k). The equation of the circle is given by

(x - h)² + (y - k)² = r²
where h, k is the coordinate of the center of the circle on coordinate plane and r is the radius of the circle.

Here,
C is the point outside the circle and tangent drawn to the circle from C to B of length 12, the radius of the circle is 5. Since the radius is always perpendicular to the circle's tangent,
So
ABC is right angle triangle
AB = 5 ; BC = 12
Now applying the Pythagorean theorem
AC² = AB² + BC²
AC  = √(5² + 12²)
Ac = √(25+144)
AC = √169
AC = 13

Now,
AC = AE + EC
(AE = AB)
AC = AB + EC
13 = 5 + EC
EC = 8


Thus, the required length from the point outside the circle to the point on the circle i.e. CE is 8 and the length from the point outside the circle to the center is 13.

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(Someone help please)

Put these numbers in order, from least to greatest.

3.5

-1

4.8

-1.5

-0.5

-4.2

0.5

-2.1

-3.5

Answers

Answer:

-4.2,-3.5,-2.1,-1.5,-1,-0.5,0.5,3.5,4.8

Answer:

0.5, 3.5, 4.8, -0.5, -1, -1.5, -2.1, -3.5, -4.2

Step-by-step explanation:

hope this helps :)

Find the measure of u given that pllq.

Answers

the answer is 32 degrees

Angle u is 32°.

What are the properties of a line?

A line can go on forever. The line continues forever in both directions. There are no endpoints on the lines. The following are the angles of lines: Equal angles are those that are vertically opposed, such as a = d and b = c. As an example, the angles a + b and a + c add up to 180 degrees. Angles that correspond to one other are equal, such as a = e, b = f, c = g, and d = h. A line is a geometric form with only one dimension. There is no thickness to the line; it merely has length. Lines that cross at an angle will do so only once.

Given that angle Y at the q line is 32°. Since line p and line q are parallel. From properties of a line. angle made by the same cross line with two parallel lines will be the same.

Therefore, Angle u will be the same as angle y which is 32°.

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Square Areas

The dots on the grid are all one unit apart.

1. The square shown here can be described

as a 3/5 square. Find its area.

.

Show all your reasoning

Answers

Answer:

The area will be "34 unit²".

Step-by-step explanation:

The diagram is missing throughout the given question. Below is the figure attached.

According to the question,

The side of squares will be:

=  [tex]\sqrt{(5)^2+(3)^2}[/tex]

=  [tex]\sqrt{25+9}[/tex]

=  [tex]\sqrt{34} \ units[/tex]

Hence,

The area of square will be:

=  [tex](side)^2[/tex]

=  [tex](\sqrt{34} )^2[/tex]

=  [tex]34 \ unit^2[/tex]

Graph + > -1.
+
3
-5
+
4 5
-4
-3
-2
-1
0
1
2
Switch direction
Make circle open

Answers

You have the right idea but the endpoint is at the wrong location. Instead, the green dot should go at -1. The shading is to the right. We use a closed filled in circle here (instead of an open hole) to tell the reader "include the endpoint". So -1 is part of the solution set.

In short, the graph consists of a closed filled in circle at -1 with shading to the right. This visually describes all values that are larger than -1, or equal to -1.

the actor is 10

your welcome

The temperature at 6 a.m. was -12°F. At 11 a.m. the temperature was 0°F. Which of the following shows the temperature change from 6 a.m. to 11 a.m.?

Answers

Answer:7 - 9 = -2

Step-by-step explanation:

An item is regularly priced at $80 Barbado add a discount of 25% off the regular price how much did Bob pay

Answers

Answer: $60

Step-by-step explanation:

Given

The price of an item is $80

The discount on it is 25%

Net payable price =Regular Price- discount

[tex]\Rightarrow \text{Net Payable Price(P)}=80-25\%\ \text{of}\ 80\\\Rightarrow P=80(1-0.25)=80\times 0.75\\\Rightarrow P=\$60[/tex]

Solve for g.


g/4 > 12


A. 3 < g
B. g > 48
C. g > 8
D. 16 < g

Answers

Answer:

d i think

Step-by-step explanation:

What is an
equation of the line that passes through the points (-4,-4) and (4, 6)?

Answers

Answer:

Step-by-step explanation:

1.) Find the slope

[tex]\frac{y_2-y_1}{x_2-x_1} = \frac{6-(-4)}{4-(-4)}= \frac{6+4}{4+4} = \frac{10}{8}=\frac{5}4}[/tex] = m

2.) Use the  slope-point form for a line

[tex]y-y_0=m(x-x_0)[/tex]

Pick any point (-4,-4) or (4,6) into [tex]y_0 and x_0\\[/tex]

but your equation is y= 5/4x+1

The graph still have the same shade. What is the equation of the blue graph?

Answers

Answer:

G(x) = x²-2

I hope its right

Select the correct answer from the drop-down menu. A line with a slope of -2 crosses the y-axis at (0, 3). The equation of the line is . A. -3x + y = 3, B. 3x + y = 2 C. 2x + y = 3 D. 2x + y = 2

Answers

The answer is B.3x+y=2
Explanation: When graph A has the crosses on the y axis(0,3) but it doesn’t have a slope of -2 since it run from left to right. But B tun from right to left making it negative.
Can u give me brainliest please? I would appreciate it and I hope this helps.

PLEASE HELP ASAP

An isosceles trapezoid has an area of 25 square units and a height of 5 units. Find the sum of the bases of the trapezoid.

Complete your work in the space provided.

Answers

Answer:

5 units because 5 times 5 is 25

Tell whether the lines through the given points are parallelperpendicular, or neither Line 1: (1, 0), (7, 4) Line 2: (7, 0) , (3, 6) The slope of line 1 is The slope of line 2 is

Answers

Answer:

The lines are perpendicular

Step-by-step explanation:

We determine whether lines are parallel or perpendicular by getting their slopes

For line 1; (1, 0), (7, 4)

Slope m = 4-0/7-1

M1 = 4/6

M1 = 2/3

Hence the slope of M1 is 2/3

For Line 2; (7, 0) , (3, 6)

M2 = 6-0/3-7

M2 = 6/-4

M2 = -3/2

Take the product of the slopes

M1 * M2 = 2/3 * -3/2

M1M2 = -1

Since the product of their slope is -1, hence the lines are perpendicular

Two semicircles are attached to the sides of a rectangle as shown. What is the area of this figure?​

Answers

144 would be your answer

PLEASE HELP DUE AT MIDNIGHT!

Answers

Answer:

D or A i think

Step-by-step explanation:

pls mark brainliest

Answer:

B. Angle 2 and Angle 7 are alternate interior angles.

Step-by-step explanation:

Angle 2 and Angle 7 are actually alternate exterior angles. They are on opposite sides of the transversal and so the "alternate" part is correct, however, alternate interior angles are ones on the inside of the transversal, like angles 4 and 5.

How do you factor a quadratic equation completely?

Answers

Answer:

A Method For Simple Cases

Step 1: Find two numbers that multiply to give ac (in other words a times c), and add to give b.

Step 2: Rewrite the middle with those numbers:

Step 3: Factor the first two and last two terms separately:

Step-by-step explanation:

3x+26+7x combine like terms

Answers

Answer: 10x+26

Step-by-step explanation:

Please Help!!!!!! You have twice as many nickels as pennies. you have $1.10. how many of each coin do you have? Solve each problem using a system of equations.

Answers

There are 20 nickels and 10 pennies.

20 cents x 5 is $1.00 and 10 cents x 1 is 10 cents so it is $1.10 because a nickel is 5 cents so 20x5 is a dollar and a penny is worth 1 cent and 10 pennies is 10 cents so $1.00+$0.10=$1.10 brainliest is appreciated! :)

solve for m
m - 6 = 11

Answers

Step-by-step explanation:

m=11+6=17

hope it helps....

Answer:

m = 17

Step-by-step explanation:

11 + 6 = 17

if m - 6 = 11, then m = 17

Find the slope of the line graphed

Answers

Answer:

I believe it is 2

rise and run concept

find l of the following cone ​

Answers

Answer:

[tex] l = \sqrt{261}\: in[/tex]

Step-by-step explanation:

Height of the cone h = 15 in

Radius of the cone r = 12/2 = 6 in

We need to find slant height (l) =?

[tex] \because l = \sqrt{ {r}^{2} + {h}^{2} } \\ \\ \therefore l = \sqrt{ {6}^{2} + {15}^{2} } \\ \\\therefore l = \sqrt{36 + 225} \\ \\\therefore l = \sqrt{261} \\ [/tex]

Answer:

l = √261 in

Step-by-step explanation:

Hope this helps

PLEASE HELP ME
For pic one, just tell me the letter (dont have to work anything out)

For help (pic) 2, the two missing reason options are:
4- A) given B)reflexive property of congruence C)Definition of a midpoint D)definition of equilateral
5- A) SAS B)ASA C)SSS D)AAS

Answers

Answer:

1. AAS 2. sorry

Step-by-step explanation:

1. Those angles that are marked are the same. The lengths of the lines too. And the angle H(both) are the same.

2. sorry (what are the choices?)

What is the area of the following trapezoid? 14 mm 10 mm 28 mm 210 mm 2 280 mm 2 O 420 mm 2 O 140 mm 2​

Answers

Answer:

210 mm2

Step-by-step explanation:

you add both the bases and then height ;)

Can someone please help me?

Answers

Answer:

sure ill help you

Step-by-step explanation:

What is the decimal equivalent of

5
6
?



1.2

− 1.2


0.8
¯
3
− 0.8 3 ¯
0.8
¯¯¯3
0.8 3 ¯ 0.8\3
1.2

Answers

Answer:

kwkwkjwsjsjsssjsj

Step-by-step explanation:

ksksossoslsksmssmmssmsk

Card
#3
Find the area of the shaded region
shape: triangle
2
6 cm
shapesquare
Area formula:
Note: Round to the Final Answer
nearest hundredth (include Units!)
Checked by Teacher

Answers

Answer:

19,27 cm^2

Step-by-step explanation:

area of triangle = (6 x 3)/ 2 = 9 cm^2

circle area : 3^2 x 3,14 = 28,27 cm^2

area of shaped region = 28,27 - 9 = 19,27 cm^2

A rectangle has a perimeter of 18. The height of the rectangle is 4 cm. What is the area of the rectangle?

Answers

Answer:

20

Step-by-step explanation:

Perimeter of rectangle= 2l+2h so 2l+2(4)=18. SO 2l=10. l=5

Area=bh

(5)(4)=20cm

20 cm, I think
The perimeter is 18 and the height is 4 cm.

4 cm x 2 = 8
We are multiplying it by two because there are two side in a rectangle that are the same height

18 - 8 = 10
We are finding the length of the rectangle
10\2 = 5
The length of the rectangle is 5

5 x 4 = 20
That is the area
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