Solve by factoring:
x3+3x2+9x+27=0

Answers

Answer 1

Answer:

x = −3,3i, −3i

Step-by-step explanation:


Related Questions

last year 30 people went on a family trip to universal this is 5 times as many people that went the year before. how many people went the uear before?

Answers

Answer:

6 people

Step-by-step explanation:

To figure this out, let's set up an equation.

We know 30 people went last year to Universal, and that this is 5 times as many people as who went the year before

So to figure out how many went the year before, we divide 30 by 5

30/5 = 6

So 6 people went to Universal the year before.

I hope this helps :)

Answer:

6 people went the year before

Explanation:

If 30 ppl went this year, you would have to find what times what equals 30. So jf it was 5 times more than before, the answer would be 6 because you would have to do 5 X 6 which would equal 30 so the answer is 6.

Hope this helped :)

What is 6 over 9 times 6 over 8 equal

Answers

Answer:

0.5

Step-by-step explanation:

Answer: the answer is 0.5 or 1/2

Step-by-step explanation:

The Washington Football Team won 6 of their 13 games. What percentage of their games did they win?

Answers

Answer:

46.2%

Step-by-step explanation:

6 divided by 13 multiplied by 100. rounded up

The equation C= 8h+25 represents the cost in dollars, C, to rent a canoe, where h is the number of hours the canoe is rented.
What is the cost to rent a canoe for 4 hours?

Answers

The cost to rent a canoe for 4 hours is $57.

How to calculate the cost?

It should be noted that the equation given is illustrated as equation C= 8h+25 represents the cost in dollars, C, to rent a canoe.

C = 8h + 25.

where h = number of hours

C = 8h + 25

When h = 4..

C = 8h + 25

C = 8(4) + 25

C = 32 + 25

C = 57

Therefore, the cost to rent a canoe for 4 hours is $57.

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Geoffrey buys 48 shares of Deegan Pharmaceuticals at $6.15.each, and his broker charges him a commission of $81. How
much did Geoffrey pay for his stock?
a. $376.20
b. $295.20
C. $450.30
d. $219.60

Answers

Answer:

A

Step-by-step explanation:

He paid $376.20

He payed 376.20$ it’s A

6 inches more than 2 times the height, 54 square inches what’s the base and height

Answers

6 inches more than 2 times the height, 54 square inches the base and height is

b=13.8 inches

h=3.9 inches

Let base and height be b and h respectively,

So ,

b=2h+6

Area = b*h= 54 square inches

So,

(2h+6)(h)=54

2h²+6h=54

h²+3h=27

h²+3h-27=0

h= [tex]\frac{-3 +\sqrt{3^{2}-4(-27)(1) } \\}{2}[/tex]

h=[tex]\frac{-3 +\sqrt{9+108} \\}{2}[/tex]

h=[tex]\frac{-3 +\sqrt{117} \\}{2}[/tex]

h=[tex]\frac{-3 +10.8\\}{2}[/tex]

h=3.9 inches

b=2h+6=13.8 inches

The measurement that indicates the size of a region on a plane or curved surface is called area. Surface area refers to the area of an open surface or the border of a three-dimensional object, whereas the area of a plane region or plane area refers to the area of a form or planar lamina.

The quantity of unit squares necessary to completely cover a shape is its area. As a result, it is stated and measured in square units.

Area is the entire amount of space occupied by a flat (2-D) surface or an object's form. On a sheet of paper, draw a square using a pencil. It has two dimensions. The area of a form on paper is the area that it occupies. Consider your square as being composed of smaller unit squares.

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How do you simplify (2/3) with a sqrt of 2

Answers

You want to get rid of the radical in the denominator. The way to do this is to square the denominator so they cancel out. However, you must do this to both the numerator and the denominator to make it equal.

Given the following composite figure, d = 7.5 cm and w = 15.1 cm.

What is the area of the figure?

Answers

Answer:

157.41

Step-by-step explanation:

It can be identified that, given the figure, there is a rectangle and 2 semicircles.

Let's find the area of the rectangle first: A=L*w

Plugging in the given values => A=7.5*15.1 which equals 113.25.

Now the area for the semicircles: 1/2(3.14*r^2)

First, we need to find the radius. To find the radius, you just have to divide the diameter by 2. So, 7.5/2=3.75.

We can plug square the radius which is 3.75 and plug it into the formula: 1/2(3.14*3.75^2)=>22.078125.

22.078125 is the area of only one semicircle so we need to multiply it by 2 because we have two semicircles. So, we get 44.15625.

Finally, we can add them all up to find the total area of the figure: 113.25+44.15625=157.40625.

Rounding to the nearest hundredth=>157.41

Beth is making a beanbag seat in the shape of a cube. Each side of the seat is 2 feet long. Beth needs to find the volume of the seat so that she can buy the correct amount of bean. Beans are sold in bags that hold 2 cubic feet of beans. How many bags should Beth buy?

Answers

With the help of the volume of cube it is concluded that Beth should buy 4 bags of beans.

What Is Volume of Cube?

The volume of a cube is the total three-dimensional space that it occupy. A cube's volume is expressed as cubic units. The SI unit of volume is the cubic meter [tex](m^3)[/tex], which is the volume occupied by a cube with each side measuring 1 m.

The first thing to do in this case is to find the volume of the cube, which will be given by:

V = [tex]L ^ 3[/tex]

where, L = sides of the cube.

Substituting we have:

V = [tex](2) ^ 3[/tex]

V = [tex](8) ^ 3[/tex]

Since, beans are sold in bags that hold two cubic feet of beans.

Now, to find the number of bags, we calculate

n = 8/(2)

n = 4

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How many times larger is 7.785 x 10^10 than 1.5 x 10^8?
05.19
19.3
193
519

Answers

Answer:

  (d)  519

Step-by-step explanation:

You want the ratio of (7.785×10^10) to (1.5×10^8) expressed in standard form.

Division

Since you want the result in standard form, it can work well to make the numerator and denominator powers of ten be the same.

  [tex]\dfrac{7.785\times10^{10}}{1.5\times10^8}=\dfrac{7785\times10^7}{15\times10^7}=\dfrac{7785}{15}=\boxed{519}[/tex]

PLEASE HELP ASAP WILL GIVE BRAINLIST
Question 3(Multiple Choice Worth 2 points)

(Multiplying and Dividing with Scientific Notation LC)

Find the product of (3 x 10^9) and (2 x 10^9). Write the final answer in scientific notation.

6 x 1081
6 x 10018
6 x 1018
6 x 109

Answers

Answer:

6 x 10^18

Step-by-step explanation:

u multiply numbers as normal and add exponents when they are being multiplied to each other

Answer:

C. 6 x 10^18

Step-by-step explanation:

Hope it helped :)
(Ik it was already answer but I just wanted to answer)

what do r and y mean??

Answers

R means red and y means yellow

Help!
Let y=0. Evaluate the expression.

4(6y+1)


4

0

244

5

Answers

Answer:

Given y = 0,

[tex]\sf 4(6y+1)\\4(6* 0+1)\\(6 * 0 + 1)\\(6 * 0)\\= 0\\= 0 + 1\\= 1\\= 1 * 4\\= 4[/tex]

Thus, the answer is 4.

Ashley received a $22 discount on a radio she bought for $96.00. What is the percent of discount she saved?

Answers

Answer:

18.64% discount

Step-by-step explanation:

If she had a $22 discount and bought the radio for $96, then the original cost was $118.

discount = (22 * 100) / 118

4.)
Find the area of the polygon with the given vertices:
E(3, 1), F(3,-2), G(-2,-2)
Perimeter EFG =____

Answers

-2,-2 became search on goggle

If the measure of angle 2=a+15 and the measure of angle 3=a+35, find a if HL is perpendicular to HJ

Answers

The value of a if HL is perpendicular to HJ is 20

How to determine the value

From the information given, we have that;

HL = angle 2 = a + 15HJ = angle 3 = HJ

It is important to note that perpendicular lines always intersect each other and the angle between perpendicular lines is equivalent to 90 degrees.

Then, we have that;

Angle 2 + angle 3 =  90 degrees

Substitute the values

a + 15 + a + 35 = 90

collect like terms

2a + 50 = 90

2a = 90 - 50

subtract like terms

2a = 40

Make 'a' the subject

Divide both sides by 2

2a/2 = 40/2

a = 20

Thus, the value of a if HL is perpendicular to HJ is 20

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list 5 multiples of 9

Answers

Answer:

9, 18, 27, 36, 45

Step-by-step explanation:

multiples is like finding the factors. like 1*9=9 and 2*9=18, 9*3=27, 4*9=36, 9*5=45


Aniela took 10 pages
of notes over the span of 4
classes. If Aniela worked at a
constant rate, how many notes
did she take in one class?

Answers

Answer: Aniela took 2.5 pages of notes per class

Step-by-step explanation: If you take the total amount of pages of notes taken and divide it by the number of classes you get the rate of pages of notes per class. So 10 pages/4 classes = 2.5 pages/class

A produce packing company prepares crates of apples to ship to supermarkets. Suppose
that the weight of a randomly selected crate is known to be Normally distributed, with
a mean of 14 kg and a standard deviation of 1.4 kg.
(a) Find the weight of a particular crate such that the probability of randomly selecting a heavier crate is 0.05.
(b) Find the probability that a randomly selected crate will weigh more than 16kg.
(c) If 20 crates are randomly and independently selected, what is the probability that
at least 2 of them will weigh more than 16kg?

Answers

a. The weight of a particular crate such that the probability of randomly selecting a heavier crate is 0.05 is 16.30kg.

b. The probability that a randomly selected crate will weigh more than 16kg is 0.0764.

c. The probability that.at least 2 of them will weigh more than 16kg is 0.4584.

How to calculate the probability?

a. From the information, there is a mean of 14 kg and a standard deviation of 1.4 kg. The weight will be:

Let the weight = x

X = (Z × mean × standard deviation)

= (1.645 × 1.4 ×14)

= 16.30kg

b. The probability that a randomly selected crate will weigh more than 16kg will be:

P(z > 16)

= P(Z > 16-14/1.40)

= P(Z > 1.43)

Looking under the normal distribution table, the value is 0.0764.

c. The probability that at least 2 of them will weigh more than 16kg when 20 crates are randomly and independently selected will be through binomial distribution where n = 20 and p = 0.0764.

This will give a value of:

= 1 - 0.5416

= 0.4584

Therefore, the probability that.at least 2 of them will weigh more than 16kg is 0.4584.

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How far could you travel walking backwards in 15 minutes based on you speed for the 5 meter trial?

Answers

The correct answer answers will vary

Students should apply their findings to the calculation to determine a distance.

S=D÷T. The speed would be equal to the time and the speed from the 5-meter trial of walking backwards.

ought should be 15 minutes. To calculate the distance, students must multiply the speed by the time.

The distance that an item travels in relation to the amount of time it takes to do so may be used to define speed. In other terms, it is a measurement of an object's motion's speed without direction Velocities are what we get when speed and direction are combined.

The speed formula, which was developed by scientists, is used to determine different types of speed. The speed equation is:

Speed=Distance/Time

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Given a regular pentagon with radius 5, and each side of length 6, find the area of the pentagon. A) 120 square units B) 60 square units C) 45 square units D) 30 square units

Answers

The area of the regular pentagon is 60 square units

How to determine the area of the pentagon?

The given parameters are

Radius, r = 5 units

Side length, l = 6 units

The area of the pentagon is calculated as

A = 1/4√[25 + 10√5] * l^2

Substitute 6 for l in the above equation

So, we have

A = 1/4√[25 + 10√5] * 6^2

Evaluate the product

A = 60 (approximated)

Hence, the area of the regular pentagon is 60 square units

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PLS HELP!!! NEED ASAP WILL MARK BRAINLIEST. WORTH 100 POINTS
Solve the inequality. Graph the solution, if possible.


1. |y-2|+11>0


2. 3|2a+8|-11≤-5


3. 1/3|2x+3|-1≤8


please show how you got your answer or if it’s no solution, thank u !

Answers

Answer:

1-13 and 2-13 and 4-13 because if you add them that is the answer

When a vehicle is in motion, it has _____.

Answers

Kinetic energy (KE).

Answer:

Kinetic energy

Step-by-step explanation:

because when something is in motion it gains kinetic energy

40 POINTS! Use the following figure to answer BOTH parts the question.

(a) Describe in words a sequence of transformations that maps ∆ABC to ∆A''B''C''.

(b) Write an ordered-pair rule for each transformation in the sequence.

Answers

Answer:

BC to ∆A''

Step-by-step explanation:

Differentiate with respect to y
[tex]5y = {y} ln( {x}^{2} ) [/tex]

Answers

Answer:

[tex]{ \tt{5y = y ln( {x}^{2} ) }} \\ { \tt{impossible}}[/tex]

Han made some hot chocolate by mixing 4 cups of milk with 6 tablespoons of cocoa
how many cups of milk is that
how many cups of cocoa is that

Answers

Han produced hot chocolate by combining 6 tablespoons of cocoa with 4 cups of milk. For every spoonful of cocoa, 0.67 glasses of milk are required.

The relationship between two values is described by a ratio. It displays how frequently one value appears in another. The answer to this question will depend on how many cups of milk there are to every tablespoon of chocolate.

Divide the provided cups of coffee by the cost of the tablespoon of coffee to get the required quantity of milk per tablespoon of chocolate.

Cups per tablespoon of coffee equal cups of milk divided by tablespoons of cocoa.

Given that,

Number of cups of milk = 4

Tablespoons of cocoa = 6

4/6=0.67 cups

Therefore, for every spoonful of cocoa, 0.67 glasses of milk are required.

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A house has decreased in value by 35% since it was purchased. If the current value is $104,000, what was the value when it was purchased?

Answers

The value when it was purchased is  $160,000 in linear equation.

What in mathematics is a linear equation?

There are only one or two variables in a linear equation. No variable can be multiplied by a number larger than one or used as the denominator of a fraction in a linear equation. All of the points fall on the same line when you identify the values that together make a linear equation true and plot those values on a coordinate grid.

Let the original price be = x

Decreased value  = 0.35

Current value = 104000

x - 0.35x  = 104000

0.65x = 104000

x = 104000/0.65

x = 160,000

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graph the following. x= -1. y= 5

Answers

Answer:

NOT possible to draw

Step-by-step explanation:

Answer:

graph the following

x=-1 y =5

it look like a two line

Step-by-step explanation:

0.39 x 10^9

Put in scientific notation ​and explain how it works.

Answers

Answer:

3.9 x [tex]10^{8}[/tex]

Step-by-step explanation:

0.39 is not in scientific notation.  For a number to be in scientific notation the first factor has to be 1 or greater, but less then 10.  0.39 is less than one.

First we must write 0.39 in scientific notation.  We need to move the decimal so that the number is greater than 1, but less than ten.  If we move the decimal one place to the right, we get 3.9.  The standard number is smaller than 3.9.  How much smaller?  [tex]10^{-1}[/tex] smaller.

0.39 in scientific notation would be 3.9 x [tex]10^{-1}[/tex].  We cannot forget the [tex]10^{9}[/tex], so our number looks like this now:

3.9 x [tex]10^{-1}[/tex] x [tex]10^{9}[/tex]  The product of powers principle tells us that if we have powers with the same bases, we can add the exponents.

3.9 x [tex]10^{-1+9}[/tex]

or 3.9 x [tex]10^{8}[/tex]

The longer side of a golden rectangle has length of 13. In order to find the length of the shorter side, divide 13 by what

Answers

in order to find the shorter side of a golden rectangle we need to divide 13

by 1.6180.

A golden rectangle is a rectangle in geometry whose side lengths are in the golden ratio, or display style 1:tfrac 1+sqrt 5 2 which is display style 1:varphi 1:varphi (the Greek letter phi), where display style var phi var phi is roughly 1.618.

All rectangles made by including or excluding a square from one end are also golden rectangle, which is a unique example of self-similarity.

Length of longer side a = 13

let the length of shorter side is b.

them by the property of golden rectangle,

a : b = 1: (1+sqrt 5)/2

by substitution method

13 : b = 1 : (1+sqrt 5)/2

b = 8.034

so to get the length of shorter side we need to divide by 1.6180

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