Find the real zeros of r(z)=4z−z3

Answers

Answer 1

Answer:

Step-by-step explanation:

r(z)=z

so the real zero is when z = 0

did you mean 4z^2?


Related Questions

What is the value of cos B as a simplified fraction. (Enter answer as x/y to enter the fraction).

Answers

Answer:

Cos of B = 36 / 38.884

Step-by-step explanation:

To find the cos of b you need the hypotenuse

(a)^2 + (b)^2 = (c)2

(36)^2 + (15)^2 = 1521

1521 squared is 38.884

Hypotenuse side goes on bottom and adjacent side on top

Cos of B = 36 / 38.884

3. A carpenter cuts a piece of lumber into two
pieces. One piece is twice the length of the other.
If the longer piece is 28 inches long, how long
was the whole piece of lumber before it was cut?

Answers

Answer:

42 inches

Step-by-step explanation:

Let x represent the length of the shorter piece then...

2x=28

Divide both sides by 2

x=14

The shorter one is 14 inches long and the longer one is 28 inches long. Now, we add these two numbers to find the original length of the lumber.

14in+28in=42 inches

what is the cubed root of 27?​

Answers

Answer:

Cube root of 27 in radical form: ∛27???

Step-by-step explanation:

hope this helps

what’s the slope?
50 points!! Please help

Answers

Answer:

6

Step-by-step explanation:

slope is rise/run

to get from -1 to 5 is 6 points

y axis to 1 is 1 point

6/1=6

What is the equation of the line parallel to
y = 3x - 8 that passes through the point (4, 2)?

Answers

Answer:

y=3x-10

Step-by-step explanation:

A line parallel to another line has the same slope.

Therefore, we can create the equation y=3x+b.

Substituting (4,2) into y=3x+b,

2=3(4)+b

2=12+b

-10=b

y=3x-10

Therefore, the equation of the line parallel to y=3x-8 which passes through the point (4,2) is y=3x-10

Answer:

y = 3x - 10

Step-by-step explanation:

Equation: y = 3x + b

Point: (4, 2)

y = 3x + b

2 = 3 (4) + b

2 = 12 + b

b = -10

y = 3x - 10

5
When x = 0 and y = 0, which of the following is equivalent to
(5)?

Answers

Answer:

  (b)  x^15/y^5

Step-by-step explanation:

The exponent outside parentheses multiplies all of the exponents inside parentheses.

  (x^3/y)^5 = x^(3·5)/y^(1·5) = x^15/y^5

______

Additional comment

When it comes to exponents, I find it useful to remember that an exponent signifies repeated multiplication: x·x·x = x³. The exponent outside parentheses has the same meaning:

  (x³)² = (x·x·x)·(x·x·x) = x⁶

The rule is summarized by ...

  (a^b)^c = a^(bc)

The ratio of men to women working for a company is 7:5. If there are 192 employees total, how many women work for the company?

Answers

7:5 mean that to every 7 men there is 5 woman.

There are 54 women working for the company.

What is Ratio?

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other.

The ratio of men to women working for the company is 7:5, which means that for every 7 men, there are 5 women.

We can express this as a fraction by writing 7/7 as 1 and 5/7 as 5/7, so the ratio becomes 1:5/7.

This fraction can be rewritten as 7/7:35/7, and since the two fractions have the same denominator, we can say that the ratio is equal to 7:35.

Since there are 192 total employees, and the ratio of men to women is 7:35, we can set up the following proportion:

7/35 = x/192

We can solve this proportion by cross-multiplying:

7/35 × 192 = x

This simplifies to:

x = 54

Therefore, the company hired 54 female employees.

To learn more about the Ratio click here:

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A function is a type of rule in which each input results in exactly one output.
Explain why both rules above are functions

Answers

Answer:

geotheral

Step-by-step explanation:

Area in picture below

Answers

Answer: 1716/25 or 16 68/25

Step-by-step explanation:

Formula: 1/2 x height x (a+b)

Someone pls show me

Answers

Answer:

  x = 4

Step-by-step explanation:

An exterior angle of a triangle is equal to the sum of the remote interior angles.

  18x +5 = (46) +(-1 +8x)

  10x = 40 . . . . . . . . . . . . . subtract (5+8x) from both sides, simplify

  x = 4 . . . . . . divide by 10

__

Additional comment

The exterior angle is (18)(4) +5 = 77°. The marked unknown interior angle is -1+(8)(4) = 31°. The sum of the two remote interior angles is 46°+31° = 77°. The unmarked interior angle is 180°-77° = 103°.

Which of the following equations has both -5 and 5 as possible values of z?

z^2 =36

z^3 = 125

none of the above

Answers

The correct answer is z can take on the values of both -6 and 6, not -5 and 5.

The equation that has both -5 and 5 as possible values of z is:

[tex]z^2 = 36[/tex]

When we solve this equation, taking the square root of both sides, we get:

z = ±6

Therefore, z can take on the values of both -6 and 6, not -5 and 5.

Hence, none of the given equations have both -5 and 5 as possible values of z.For the equation z^2 = 36, we need to find the values of z that satisfy the equation. Taking the square root of both sides, we get:

z = ±√36

Simplifying the square root of 36, we have:

z = ±6

This means that z can take on the values of both -6 and 6. However, the values -5 and 5 are not solutions to this equation.

Similarly, for the equation z^3 = 125, there are no values of z that satisfy the equation for z equal to -5 or 5.

Therefore, none of the given equations, z^2 = 36 and z^3 = 125, have both -5 and 5 as possible values of z.

Learn more about equations here:

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Which of the following best describes the graph below?
ļ ďd bd
5 4 3 2 1
1 2 3
4
&
-1
2.
2
-3
O A. It is not a function.
B. It is a many-to-one function.
C. It is a function, but it is not one-to-one.
D. It is a one-to-one function,

Answers

Answer: Most of the time, we're going to have to look at the graph of the function to determine its range. Examples. • Example 1 g(x) = 6x − 2. 3x − 4. (4).

5 pages

Step-by-step explanation:

hope this helps

The given graph is  a one-to-one function

What is a function?

A relation is a function if it has only One y-value for each x-value.

A function is said to be one-one if corresponding to each x we get a distinct y-value.

i.e. No two x have the same y-value.

Also it can be seen from the graph when any horizontal line is drawn parallel to the x-axis then the line intersect the curve atmost once.

it passes the horizontal line test.

Many-to-one function is a function is many to one when many x-values are mapped to same y-value.

Clearly from the graph we see that the graph is a one-to-one function.

Hence, the given graph is  a one-to-one function

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The data set represents a progression of hourly temperature measurements. Use a graphing calculator to determine the quadratic regression equation for this data set. X 0 1 2 3 4 5 y 20 16 10 0 -7 -20 a. Y = 0. 795 x squared 3. 796 x 20. 180 c. Y = negative 0. 875 x squared minus 3. 596 x 20. 179 b. Y = negative 0. 795 x squared minus 3. 760 x 20. 180 d. Y = negative 0. 795 x squared minus 3. 796 x 20. 180.

Answers

A regression can be modeled by linear regression, quadratic regression, quartic regression or exponential regression

The quadratic regression equation that models the data is

[tex]\^y = -0.875\^x^2 -3.596\^x +20.179[/tex]

How to determine the regression equation

The table entries are given as:

x: 0,1,2,3,4,5

y: 20,16,10,0,-7,-20

A quadratic regression is represented as:

[tex]\^y = a\^x^2 + b\^x + c[/tex]

Using a graphing calculator to determine the quadratic regression equation, we have the following calculation summary

a = -0.875

b = -3.596

c = 20.179

Hence, the quadratic regression equation is:

[tex]\^y = -0.875\^x^2 -3.596\^x +20.179[/tex]

Read more about regression equations at:

https://brainly.com/question/25987747

Answer:

ITS C

Step-by-step explanation:

A number is selected randomly from the integer from 10to30 what is the probability of picking a multiple of 4or5​

Answers

Answer:

[tex]\frac{3}{7}[/tex]

Step-by-step explanation:

Start by finding how many integers there are from 10-30...

30-10+1=20+1=21

Note we have to add 1 since it is inclusive.

Now, let's find how many multiples of 4 or 5 there are from 10-30...

4*3=12

4*4=16

4*5=20

4*6=24

4*7=28

5*2=10

5*3=15

5*4=20

5*5=25

5*6=30

5+5-1=9

Note we have to subtract 1 since 20 is counted twice.

The probability would be...

[tex]\frac{Multiples\ of\ four\ and\ five\ from\ 10-30}{Amount\ of\ integers\ between\ 10-30}=\frac{9}{21}=\frac{3}{7}[/tex]

Match the words in the left-hand column to the appropriate blank in the sentences in the right-hand column. Use each word only once.
View Available Hint(s)
Reset Help
1. The slowly increasing distance between South America and Africa is due to _______.
2. Old Faithful Geyser at Yellowstone National Park in the United States acquires its energy from a ______.
3. Layered ______ exposed by erosion can be seen when looking at the Grand Canyon in the United States.
4. Australia is composed of relatively old and thick _________.
5. The extremely deep ocean Marianas Trench is a result of ______.
6. ______ found in the Atlantic Ocean between North America and Europe is composed of dense and relatively young rock.
7. The earthquakes that occur in Southern California generally occur above a ______.
a. Seafloor Spreading
b. Hot Spot
c. Sedimentary Rock
d. Continental Crust
e. Seafloor Crust
f. Fault
g. Fubduction

Answers

The slowly increasing distance between South America and Africa is due to: a. Seafloor Spreading.Old Faithful Geyser at Yellowstone National Park in the United States of America acquires its energy from a: b. Hot Spot.Layered sedimentary rock exposed by erosion can be seen when looking at the Grand Canyon in the United States of America.Australia is made up of relatively old and thick: d. Continental Crust.The extremely deep ocean Marianas Trench is a result of: g. Subduction.Seafloor Crust: found in the Atlantic Ocean between North America and Europe comprises dense and relatively young rock.The earthquakes that occur in Southern California generally occur above a: f. Fault.

What is seafloor spreading?

Seafloor spreading can be defined as a process that involves the formation of new oceanic crust as a result of volcanic activities and an upwelling of molten magma at mid-ocean ridges, as well as a slowly increasing distance (outward movement) from the ridge.

The theory of seafloor spreading was established by Harry Hammond Hess and it can be used to explain in details the slowly increasing distance between South America and Africa which grows from the center.

What is a hot spot?

A hot spot refers to an area deep within Earth's mantle or under the rocky outermost layer of Earth, from which heat rises through convection and acquired as heat energy by a landform.

In the United States of America, you will see a layered sedimentary rock that is exposed by erosion when you view the Grand Canyon.

Furthermore, Australia is made up of relatively old and thick continental crust. Also, subduction causes the formation of extremely deep ocean Marianas Trench.

Read more on seafloor spreading here: brainly.com/question/12037536

Please answer this (who ever answers correctly gets brainlest)

Answers

Answer:

0.171 m

Step-by-step explanation:

First, let's determine how many mm of track he has in total...

74mm+97mm=171 mm

Now, we can set up a unit converter to convert mm to m (note that 1 mm is [tex]10^{-3{[/tex] m)...

[tex]171mm(\frac{10^{-3}m}{1mm})[/tex]

The "mm" cancels out...

[tex]171*10^{-3}m=0.171m[/tex]

Answer:

Step-by-step explanation:

74 +  97 = 171 mm

Length of the train track = 171 mm = 171÷ 1000 = 0.171 m

PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!!

Answers

72. im pretty sure lol, since 180-108 is 72, and they’re complementary angles, i think, not completely sure

Given, m<7 = 108°

To find, m<3

Since both the given angles are on the same side of transversal, thus there sum is 180°

Thus, m<7 + m<3 = 180°

108° + m<3 = 180°

m<3 = 180° - 108°

m<3 = 72°

Hope this helps :)

Which numbers are less than 538? Select three options.


three hundred twenty-two
four hundred seventy-nine
five hundred thirty
five hundred forty
five hundred sixty-four
six hundred fifty-three

Answers

so the first one is:
322
second one:
479
third one:
530

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS HELP ASAP THANKS ILL GIVE BRAINLKEST

Answers

Answer:

D. 14

Step-by-step explanation:

These triangles are something called a scale factor. A scale factor means when you multiply any side by that factor, you get the side of the other triangle. It is an exact copy of the triangle from before, just bigger or smaller, also known as set to scale. Here we can do 7/6 to find the scale factor (which is 1.16666666667), and multiply that factor by 12 to get 14.

If the lateral surface area of a cylinder with height 4cm is 24pi cm squared then what is its volume?​

Answers

We are given –

Height of cylinder is = 4cmLateral surface area of cylinder is = 24πcm²

We are asked to find volume of the given cylinder.

Let the radius be "r".Then according to the question,it’s given –

[tex]\qquad[/tex] [tex]\pink{\twoheadrightarrow\bf Curved\: surface\: area _{(Cylinder)}= 2\pi r h }[/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\sf 2\pi r h = 24 \pi[/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\sf 2\cancel{\pi} rh = 24 \cancel{\pi}[/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\sf r =\dfrac{24}{2h}[/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\sf r = \dfrac{24}{2\times 4}[/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\sf r = \dfrac{24}{8}[/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\sf r = \cancel{\dfrac{24}{8}}[/tex]

[tex]\qquad[/tex] [tex]\pink{\twoheadrightarrow\bf r = 3 \: cm}[/tex]

Now, Let's find volume of cylinder

[tex]\qquad[/tex] [tex]\purple{\twoheadrightarrow\bf V_{(Cylinder)} = \pi {r}^{2}h}[/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\sf V_{(Cylinder)} = \pi \times 3^2\times 4 [/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\sf V_{(Cylinder)} = \pi \times 9 \times 4[/tex]

[tex]\qquad[/tex] [tex]\twoheadrightarrow\sf V_{(Cylinder)} = \pi \times 36[/tex]

[tex]\qquad[/tex] [tex]\purple{\twoheadrightarrow\bf V_{(Cylinder)} = 36 \pi \: cm^3}[/tex]

Henceforth, volume of cylinder is 36π cm³.

Step-by-step explanation:

Given :-

Height is = 4cmLateral surface area of cylinder is = 24πcm²

to find :-

volume of the given cylinder.

Solution :-

Lateral surface area of cylinder = 2πrh

24π cm = 2πrh

Cancelling π on both the sides ,

24/2h = r

putting the value of h i.e, 4 cm

24/2×4 cm = r

3 cm = radius

Now volume of Cylinder = πr²h

putting all the values ,

Volume = 3.14 × 3² × 4 cm³

Volume = 113.04 cm³

PLEASE ANSWER ASAP

Which THREE expressions are equivalent to: (x + 6) + (x + 6) + (x + 6) + (x + 6) O 4(x + 6) 0 2 (x + 12) 2 + 12 + 22 12 3a + 6 + 1 = 6 тиб 42 = 24

Answers

Organizing the problem:

Which THREE expressions are equivalent to:

(x + 6) + (x + 6) + (x + 6) + (x + 6)

O 4(x + 6)

0 2 (x + 12)

2 + 12 + 22

12 3a + 6 + 1 = 6

тиб 42 = 24

Out of these selections, i can only tell that number one is correct, number two isn't, and i can't tell for the rest. Please organize the question more clearly.

--Hunter

in one week a farmer sells pumpkins to 60% of his customers. if 720 customers purchase pumpkins, how many total customers does the farmer have

Answers

the farmer has a total of 1200 customers because 720 divided by 60 equals 12 , aka 120. and 120 is 10% of 1200 and if u do 120 x 6 you'll get 720.

The function f(x) = -(x+4)^2+5 is written in vertex form and shows that the vertex of the graph of f is located at (-4,5)
Each value of the f can be obtained from two different x-values except f(x)=5. Which best explains why f(x)=5 is the output for only one input value?

Answers

There is only one value for x that makes [tex](x+4)^2=0[/tex]

Vertex form of an expression

Given the vertex form of the function expressed as:

[tex]f(x) = -(x+4)^2+5[/tex]

If the function f(x) = 5

[tex]5 = -(x+4)^2+5[/tex]


Subtract 5 from both sides

[tex]5 = -(x+4)^2+5\\-(x+4)^2= 5-5\\-(x+4)^2=0\\[/tex]

Hence there is only one value for x that makes [tex](x+4)^2=0[/tex]

Learn more on vertex form here; https://brainly.com/question/525947

Which angles are complementary to each other?

Answers

Answer:

  All apply

Step-by-step explanation:

Complementary angles are ones that total 90°. Here, we have two pairs of congruent angles such that each pair totals 90°. We can mix and match to find pairs of complementary angles.

  less than 45°: BGC and EGF

  more than 45°: AGB and DGE

A complementary pair will consist of one angle from the first list and one angle from the second list. There are 4 possible pairings, and all are shown as answer choices.

All of the choices apply.

Two friends, Justin and Andrew, had just bought their first cars. Justin uses 10 gallons of gas to drive 200 miles in his car. The table below represents the number of miles, yy, that Andrew can drive his car for every xx gallons of gas.

Answers

Answer:

andrew can drive 20 miles for every 1 gallon of gas

Step-by-step explanation:

Andrew can drive 20 miles for every 1 gallon of gas

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS HELP ASAP THANKS

Answers

Answer:

I believe your answer is 9

Step-by-step explanation:

The way I found this answer was by assuming that triangle CDE was expanded to get triangle FGH. So I divided 18/4 and got the answer 4.5, which means that the triangle was expanded by a factor of 4.5. So I then multiplied the similar side to HG by 4.5 which was side ED. This got me with 4.5 x 2 and I got the answer 9.

Hope this helps! :)


i need answers quick thanks

Answers

B :) open circle means inequality and it needs to be at least 3 so the line has to increase, meaning the arrow is going right.

What is the solution of the equation

Answers

Answer: x=-56/3 (the second answer)

We have the equation 3/4x + 5 = -9. Our goal is to isolate x. Firstly, we need to subtract both sides by 5. This gives us 3/4x = -14. Then, we need to multiply both sides by 4/3. This then gives us x = -56/3. Once that is simplified, this is -18 2/3.

Question 6-89a
Find the perimeter of the figure below.
15 km
4 km
7 km
10 km

Answers

Perimeter=Sum of sides

[tex]\\ \tt\hookrightarrow Perimeter [/tex]

[tex]\\ \tt\hookrightarrow 15+4+7+10[/tex]

[tex]\\ \tt\hookrightarrow 19+17[/tex]

[tex]\\ \tt\hookrightarrow 36km[/tex]

what is the area to the parallelogram

Answers

Really hope this proves useful to you, any further questions please ask :)
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