Consider the equation: 3+x=x^2+3x
NEED HELP ASAP!!!!!

Answers

Answer 1

Answer:

x = 1 and x = -3

Step-by-step explanation:

We need to solve the given equation.

[tex]3+x=x^2+3x[/tex]

Taking all terms together,

[tex]x^2+3x-3-x=0\\\\x^2+2x-3=0\\\\x^2+3x-x-3=0\\\\x(x+3)-1(x+3)=0\\\\(x-1)(x+3)=0\\\\x=1\ and\ x=-3[/tex]

So, the solution of the above equation is x = 1 and x = -3.

Answer 2

Answer:

[tex]4=(x+1)^{2}[/tex]

x= -1 ±2

Khan Academy


Related Questions

Pleaseee help meeeee

Answers

Answer:

x = 13

Step-by-step explanation:

∠ EGB = ∠ AGF = 77° ( vertically opposite angles )

AB is a straight line so the 3 angles on it sum to 180° , that is

90 + x + 77 = 180

x + 167 = 180 ( subtract 167 from both sides )

x = 13

Find the volume of each figure below. Round to the nearest 10th, if necessary

Answers

Answer:

1692.5 ft³

Step-by-step explanation:

Thank you for giving the equation which would help me in solving. We know that our h which is the height is 11 ft. We have to find what the radius. Radius is the have of the diameter. In the figure, the 14 ft is the diameter. So in order to find the radius, we would divide it by 2.

14 ft ÷ 2 = 7 ft

h = 11 ft

r = 7 ft

Now plug it in the equation.

[tex]\pi[/tex]

In the equation you have this sign above. Remember this is the pi sign which is 3.14.

V = 3.14r²h

V = 3.14(7)² × 11

V = 3.14(49) × 11

V = 153.86 × 11

V = 1692.5 ft³

Hope this helps, thank you :) !!

Which of the following is most likely the next step in the series?

Answers

Answer:

Its C!

Step-by-step explanation:

Hexagon 6 sides, pentagon 5 sides, square 4 sides, triangle 3 sides!

Hope this helps, and don't forget to follow!

The required answer of the given polygons series C. triangle. In other words, the next step in the series is triangle.

Given, the following shapes hexagon has 6 sides, a pentagon has 5 sides, a square has 4 sides,

A hexagon has 6 sides, a pentagon has 5 sides, a square has 4 sides, and a triangle has 3 sides. These are all examples of polygons, which are closed shapes formed by straight lines. The number of sides determines the name and characteristics of the polygon. Each polygon has its own unique properties and formulas for calculating its area and perimeter.

Therefore, the required answer of the given polygons series C. triangle. In other words, the next step in the series is triangle.

Learn more about polygons series here:

https://brainly.com/question/29137727

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Jennifer needs to use a ladder to clean a second floor window on a building. If the window is 13ft above the ground and the base of the ladder is 4ft from the building, which equation below can be used to determine the length of the


Ladder needed to reach the window


A 42 + 139 = 2


В


4² + x² = 13²


С


132_4? = ?


D


132P = 42

Answers

Answer:

Step-by-step explanation:

we have a right triangle,

to find out the hypotenuse, h

H^2=13^2+4^2

H^2=169+8=177

The required equation would be x² = 13² + 4² which is determined by Pythagoras theorem that is used to the length of the Ladder needed to reach the window.

What is the right triangle?

A right triangle is defined as a triangle in which one angle is a right angle or two sides are perpendicular.

What is Pythagoras theorem?

Pythagoras theorem states that in a right-angled triangle, the square of one side is equal to the sum of the squares of the other two sides.

We have given that the window is 13ft above the ground and the base of the ladder is 4ft from the building

As per the condition, We have a right triangle.

To find out the hypotenuse x

By Pythagoras theorem,

⇒ x² = 13² + 4²

⇒ x² = 169 + 8

Therefore, the equation would be x² = 13² + 4²which is used to determine the length of the Ladder needed to reach the window.

Hence, the correct answer would be an option (A).

Learn more about Pythagoras's theorem here:

brainly.com/question/343682

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HELLLLPPPPPP PLEASEEEEEEE

Answers

Answer:

(19,520-1,478) * 8

Step-by-step explanation:

Here is a list of numbers.
32 29 30 37 34
34 33 31
Tanya thinks that to work out the median, she simply needs to find
the middle number. So she says that “37" is the median for this list of numbers.
Tanya's answer is not correct.
a) Describe what is wrong with her method.
b) Work out the median of the numbers in the list.

Answers

Awnser:

a) Tanya didn’t order them from the smallest number to the biggest number

b) 32.5 i’m not sure if that can be cause it isn’t a whole number i haven’t done mean median mode and rang in a long time sorry

EXPLAINATION:

order your numbers from least to greatest and then start crossing them off from each end if there are two numbers in the middle then add them up and divide them by two in this case we added 32 and 33 it was 65 then I divided 65 by 2 it was 32.5

Answer:

a) She did not arrange them from the smallest number to the biggest number

b) 32

Step-by-step explanation:

29 30 31 32 33 34 37

middle is 32

What would be the volume of Carlo’s building block? Please help if can!

Answers

Answer:

b) 490 cm^3

Step-by-step explanation:

large portion block = 10x6x7 = 420

small portion block = 2x5x7 = 70

420+70 = 490 cm^3

complete the square
x²+8x
pls help lots of points and brainlist

Answers

Answer:

( x + 4 ) ²-16

Step-by-step explanation:

I NEED HELP ASAP Identify the property used:
144x12=12x144

Answers

Answer: COMMUTATIVE PROPERTY OF MULITIPLICATION

Step-by-step explanation: the commutative property is when the numbers are basically swapped

Gl on your assignment :)

Can someone solve this

c - 25 - (-13)

Answers

Answer:

c−12!

Step-by-step explanation:

Use Cymath on g0ogle for other math questions so you don't waste your points!

Answer:

=c - 12

Step-by-step explanation:

100 points.
A company makes paper labels for paint cans. As shown below, each can is in the shape of a cylinder with a height of 9in and a diameter of 8in. The paper label is wrapped around the can and covers only the side of the can (not the top or bottom). If the company makes 15 labels, how many square inches of paper will be needed? Use 3.14 for π, and do not round your answer.

Answers

The answer is 326.56 square inches. By using and substituting the values in the formula of Total Surface Area of a cylinder, i.e., 2*pi*(r+h), we get the value 326.56

f(x) = -x^3 + 3x^2 + x - 3 Using the end behavior of f(x), determine the graph of the function​

Answers

Answer:

Here, the given function,

Since, the leading coefficient is negative, and degree is odd,

Thus, the end behaviour of the function is,

Therefore, the graph rises to the left and falls to the right.

Now, when f(x) = 0

That is, graph intercepts the x-axis at (3, 0), (1, 0) and (-1, 0).

When x = 0,

That is, graph intersects the y-axis at ( 0, -3),

Also, for 0 > x > -1 , f(x) is decreasing,

For 2.55 > x > 0, f(x) is increasing,

For 3 > x > 2.55, f(x) is decreasing,

4) Point (1, 4) is reflected over the y-axis. What are the new coordinates?​

Answers

Answer:

(-1,4)

Step-by-step explanation:

Reflection Rule for over the y axis: A(x,y) A'(-x,y)

Hope this helps!

Answer:

-1,4

Step-by-step explanation:

Provide
an appropriate response.
9) knight may win a tournament. He may also fail to win the love of his lady. Are these events
overlapping? Why or why not?
A) Yes, because not all ladies love all winners
B) No, because all ladies love all winners
C) Yes, because some ladies love winners
No, because not all ladies love all winners

Answers

C, I think I’m not completely sure though

Plss help......ASAP!!

Answers

Answer:1-12.5 feet, 2-10 feet, 3-13.75 feet, 4-8.125 feet,5-25 feet, 6-20 feet

Step-by-step explanation: All you have to do is break down the scale factor to 1:2.5 and multiply each measurement by 2.5.

I will mark you brainiest if right
Sarah buys a car for £32,000. It depreciates at a rate of 2% per year. How many years will it take to be worth less than £30,000?

Answers

Answer:

no f ing clue

Step-by-step explanation:

sym

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Answers

Answer:

[tex] \large \boxed{v > - 1}[/tex]

Step-by-step explanation:

Given the Inequality:

[tex] \large{ \frac{1}{3} (v -2) < v}[/tex]

Step 1

Multiply the fraction or 1/3 in the expression.

[tex]\large{ \frac{1}{3} v - \frac{2}{3} < v}[/tex]

Step 2

Multiply the whole Inequality by 3 to get rid of the denominator.

[tex] \frac{1}{3} v(3) - \frac{2}{3} (3) < 3(v) \\ v - 2 < 3v[/tex]

Step 3

Solve the Inequality for v-term by making v as the subject.

[tex] - 2 < 3v - v \\ - 2 < 2v \\ \frac{ - 2}{2} < v \\ - 1 < v \\ v > - 1[/tex]

Hope this helps! If you have any questions that are related to the answer, feel free to use "Comment" feature!

HEY CAN SOMEONE HELP ME PLS ILL GIVE BRAINLIEST IF RIGHT!

Answers

Answer:

angle PSQ=25°

Step-by-step explanation:

angle RQS=angle PSQ.......... alternate angle

so angle PSQ=25°

Answer:

25 degrees

Step-by-step explanation:

If it is a parallelogram, then the sides PS and QR will be parallel, then ∠PSQ and ∠RQS are alternate interior angles, and hence they will be congruent. That is, ∠PSQ ≅ ∠RQS = 25°.

But this is not the confirmation that this would be parallelogram as it could be trapezoid. The given condition is must but not sufficient to prove it.

Hope this helps. Do mark me as BRAINLY. thanks

Please help. Image below.

Answers

Answer:

a) 78

b) 1275.....

Step-by-step explanation:

.............

I will give brainliest!!!

Answers

Answer:

SA=72

Step-by-step explanation:

18+18=36

12+12=24

6+6=12

36+24+12=72

What is the value of x to the nearest tenth ?

Answers

Answer:

7.2

Step-by-step explanation:

24/2 = 12

19.2/2 = 9.6

[tex]12^{2}[/tex] - [tex]9.6^{2}[/tex] = 51.84

[tex]\sqrt{51.84}[/tex] = 7.2

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PLSSSS SHOWWW THE WORKKK!!!!

Answers

Answer:

51x^5 y^3 z^6

Step-by-step explanation:

(-3×^2 y^3 z^2) × (-17 × ^3 z^4)

3x^2 y^3 z^2 × 17×^3 z^4

51x^5 y^3 z^6

the volume of a rectangular prism is 36x6y8. the length of the prism is 4x3y5 and the width of the prism is 3xy2. what is the height of the prism?

Answers

Answer:

need the points sorry

Step-by-step explanation:

jesus

A box of pencils is 5 1/4 inches wide. Seven pencils, laid side by side, take up 2 5/8 inches of the width. How many inches of the width of the box is not taken up by pencils?

Answers

Answer:

Step-by-step explanation:

5.25 - 2.625 = 2.625 inches

I am stuck with the above question, please help

Answers

Answer:

D  

Step-by-step explanation:

Two lines are parallel if they have the same slope.

the given equation is in the form

y=mx+b

where

m=-5/2

b=-7

m is the slope.  You can see this by noting that if you increase x by 1 you increase y by m.

So, in this case, you are looking for a line with slope of -5/2.

You can solve each of the choice equations for y to see which one has the right slope.

A: y=(2/5)x-6   no good

B: y=-(2/5)x-1   no good

C: y=(5/2)x-4   no good

D: y=-(5/2)x-4  GOOD

Which expression is equivalent to 1/7 divided by 2/5

Answers

Answer:

is C

1/7 • 5/2

have a nice day!

The cost of 6 cups is £7.80
Work out the cost of 10 of these cups,

Answers

Answer:

13

Step-by-step explanation:

For 6 cups is 7.80

For 10 cups is??

7.80×10=78

78/6=13

ASAPPPP HELP
A 10 foot ladder is placed against a wall at an angle of 25° with the
ground. How far up the wall does the ladder reach?
Round your answer to the nearest whole foot. DO NOT INCLUDE
UNITS IN YOUR ANSWER

Answers

Answer:

the ladder reaches 8 feet up

Step-by-step explanation:

:D

sin25 = b/10
b=10sin25
4.2 ft



A group of people went to a coffee shop.

Each person chose a drink and a treat.


number of people who chose coffee: number of people who chose tea = 1:4


Of those who chose coffee,

number of people who chose a muffin number of people who chose a tart = 2:7


Of those who chose tea,

number of people who chose a muffin : number of people who chose a tart = 5:1


What fraction of the people chose a tart?

Answers

Answer:

Fraction of the people chose a tart = [tex]\frac{13}{45}[/tex]

Step-by-step explanation:

Given - A group of people went to a coffee shop. Each person chose a

            drink  and a treat. number of people who chose coffee: number of  

            people who chose tea = 1:4. Of those who chose coffee,  number of  

            people who chose a muffin number of people who chose a tart =    

            2:7. Of  those who chose tea,  number of people who chose a muffin  

            : number of people who chose a tart = 5:1.

To find - What fraction of the people chose a tart?

Proof -

Let the Total number of People went to a coffee shop = 5x

Now,

As given, number of people who chose coffee: number of people who chose tea = 1:4

⇒Total number of people who chooses coffee = [tex]\frac{1}{5}.5x[/tex] = x

  Total number of people who chooses tea  = [tex]\frac{4}{5}.5x[/tex] = 4x

Now,

As given,

Of those who choose coffee,  number of people who chose a muffin number of people who chose a tart = 2:7

⇒Total number of people who choose muffin after coffee = [tex]\frac{2}{9}x[/tex]

   Total number of people who choose tart after coffee = [tex]\frac{7}{9}x[/tex]

Also,

Given that

Of those who chose tea,  number of people who chose a muffin : number of people who chose a tart = 5:1

⇒Total number of people who choose muffin after tea = [tex]\frac{5}{6}.4x = \frac{20}{6}x[/tex]

   Total number of people who choose tart after tea = [tex]\frac{1}{6}.4x = \frac{4}{6}x[/tex]

∴ we get

Total number of people who chooses tart = Total number of people who choose tart after coffee + Total number of people who choose tart after tea

⇒Total number of people who chooses tart = [tex]\frac{7}{9}x[/tex] + [tex]\frac{4}{6}x[/tex]

                                                                         = [tex]\frac{7}{9}x + \frac{2}{3}x[/tex]

                                                                         = [tex]\frac{7x + 6x}{9}[/tex]

                                                                         = [tex]\frac{13}{9}x[/tex]

⇒Total number of people who chooses tart = [tex]\frac{13}{9}x[/tex]

Now,

Fraction of the people chose a tart = [tex]\frac{People choose tart}{Total people}[/tex]

                                                           = [tex]\frac{\frac{13}{9}x }{5x}[/tex]

                                                           = [tex]\frac{13}{45}[/tex]

⇒Fraction of the people chose a tart = [tex]\frac{13}{45}[/tex]



Hector's plant measures 18 inches tall Approximately how many centimeters tall is Hector's plant? (1 in 2.54 cm)

Answers

Hector’s plant is about 46 cm tall.
Explanation:
Since there are 2.54 cm in an inch, you do
18 * 2.54
18 * 2.54 = 45.72
45.72 ≈ 46
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