Using the given zero, find one other zero of f(x). Explain the process you used to find your solution. 1-6i is a zero of f(x) = x^2-2x^3+38^2-2x+37

Answers

Answer 1
The Complex conjugate root theorem states that if a-bi is a solution, so is a+bi, and vice versa. Therefore, 1+6i is another solution

Related Questions

Tessa had $110 in her checking account. She paid her cable/internet bill for $75. She deposited $50 from her part-time job before writing a check for $85 to pay her credit card bill. What is Tessa's account balance?

Answers

110-75+50-85 =

110+50=160

75+85 = 160

160-160=0

her balance is 0

You attend an amusement park with your family. Your parents buy you an all-ride pass for $20, shown as fx. Instead of getting a pass, your parents decide to pay $4 for each ride they take, shown as gx. What function shows the correct combination of these two functions to represent the total cost to them of attending the amusement park that day, shown as hx?
A. fx = 20x, gx = 4, hx = 20x + 4
B. fx = 20, gx = 4, hx = 4 + 20
C. fx = 20, gx) = 4x, hx = 4x + 20
D. fx = 20x, gx = 4x, hx = 20x + 4x

Answers

The anwser would be C
because the $20 dollars is a one time thing so that equals fx, then since the parents pay per ride and its $4 then gx=4x, add them together to give you hx
f(x)=20, g(x)=4x, 

h(x)=f(x)+g(x)

h(x)=4x+20

In ABCm∠A=72°, c=61, and m∠B=16°. Find a to the nearest tenth.

Answers

check the picture below

make sure your calculator is in Degree mode.

Using the law of sines, the length of side a to the nearest tenth is 58.1 units.

What is law of sines?

Law of sines states that When we divide side a by the sine of angle A it is equal to side b divided by the sine of angle B, and also equal to side c divided by the sine of angle C.

In ΔABC,

∠A=72°

∠B=16°

∠A + ∠B + ∠C = 180° (angle sum property)

72° + 16° + ∠C = 180°

∠C = 180° - (72° + 16°) = 92°

Using sine law, (refer to the figure attached)

[tex]\frac{sin\ A}{a} = \frac{sin\ B}{b} =\frac{sin\ C}{c} \\\\\frac{sin72}{a} = \frac{sin16}{b} = \frac{sin92}{61} \\\\\frac{sin72}{a} =\frac{sin92}{61} \\\\a = sin72 * \frac{61}{sin92} \\\\= 0.9511 * \frac{61}{0.9994} \\\\=58.05193116\\\\= 58.1[/tex]

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How did he get this 1/2i ? I dont remember studying this definition in calc 1 neither calc 2!

Answers

The [tex]i[/tex] in the denominator is missing in the second expression. It should be

[tex]\sin at=\dfrac{e^{iat}-e^{-iat}}{2i}[/tex]

This follows from

[tex]e^{iat}=\cos at+i\sin at[/tex]
[tex]e^{-iat}=\cos at-i\sin at[/tex]
[tex]\implies e^{iat}-e^{-iat}=2i\sin at[/tex]
[tex]\implies \sin at=\dfrac{e^{iat}-e^{-iat}}{2i}[/tex]

Final answer:

The term 1/2i most likely pertains to complex numbers, where 'i' is the imaginary unit. It's not typically covered in Calculus I or II but in pre-calculus or algebra courses. The principles of working with fractions apply similarly for complex numbers as they do with real numbers.

Explanation:

The term 1/2i likely refers to the fractional unit in the context of complex numbers, where 'i' is the imaginary unit. This concept is not commonly taught in Calculus I or II but is a part of complex number arithmetic, which is sometimes covered in pre-calculus or algebra. When calculating with complex numbers, it is crucial to remember that 'i' represents the square root of -1.

Let's consider the calculation of 'half' of something in more familiar terms. If you have half a pie, and you're looking to find half of that, you would intuitively know that you now have one-quarter of a pie. Likewise, if you are trying to understand how to combine fractions such as 1/2 and 1/3, you look for a common denominator. Multiplying denominators can often provide this common base for addition, just like multiplying 2 and 3 to get 6 as a common denominator.

However, when working with complex numbers and encountering a term like 1/2i, it can seem less intuitive. Nonetheless, the basic principles of fraction manipulation remain the same. The student might be looking at a problem involving complex fractions, which would require familiarity with the algebraic rules governing complex numbers.

95 is described as what

Answers

0.95 is rational number

answer is option 2

a rational number is any number that can be expressed as the quotient or fraction

so 0.95 = 95/100


hope that helps

a mechanic charges 50 am hour plus parts if a bill is 450 including 150 in parts how many hours did it take

Answers

total = 450

 parts = 150

450-150 = 300

 50 per hour

300/50 = 6


it took 6 hours

Could one prove that a shape is a square by finding the slopes of each side?

Answers

Yes that is one way. You can also prove that a shape is a square by looking at the angles and each side are congruent to each other

Yes,

If a quadrilateral has four congruent facets and 4 right angles, then it's a square (reverse of the square definition).

If consecutive aspects of a rectangle are congruent, then it is a square neither the reverse of the definition nor the speak of a assets.

How do you show a form is a rectangle with the usage of the slope?

If we can display that the slopes of the alternative sides are identical, then the other facets are parallel. The slopes of the opposites have been the same, so ABCD is a parallelogram. Step three: subsequent, show that the parallelogram is a rectangle.

what's the slope of a side?

The slope is just the upward thrust over the run, which is defined as the change in y over the change in x meaning the distinction of the y coordinate factors divided with the aid of the distinction of the x-factors? So we have the two x-factors, so this is six minus two, divided by the, the x-factors 3 minus one.

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Find the area of the shaded region when r = 4 feet and the area of the triangle is: 123√ square feet
Use 1.73 for 3√ and 3.14 for π. Round your answer to two decimal places.

Answers

Area of the shaded region :
A ( shaded ) = A ( circle ) -  A ( triangle ) =
= r² π - 12 √ 3 =
= 4² π - 12 √ 3 =
= 16 π - 12 √ 3 =
= 16 · 3.14 - 12 · 1.73 =
= 50.24 - 20.76 = 29.48
Answer: Area of the shaded region is 29.48 ft².

A bike is bought for $1200 and sold 10 months later for $940.

a) Find the depreciation equation.



b.) Value

Answers

Value

Depreciation is defined as the reduction in value of an asset over time. In this case, value reduction is due to wear and tear of an equipment (bicycle).

a. The depreciation value would simply be the difference in initial and salvage value divided by time in years.

Depreciation = (Initial value – Salvage value) / Number of years

b. Substituting the given values into the equation where:

Initial value = $1200

Salvage value = $940

Number of years = 10 months = 10/12 years

Calculating:

Depreciation = ($1200 - $940) / (10/12 years)

Depreciation = $312 / year

or

Depreciation = $26 / month

is a kiloliter greater than one liter

Answers

Hello Mikaila

Kiloliters is a metric unit of volume equivalent to 1000 liters or 1 cube meter.

-------------------------------------------------------------------------------------------
Yes, a kiloliter is greater than one liter.

------------------------------------
1 kiloliter = 1000 liters


I hope that helps!

If the total price paid for an item is $20.25 and the cost of the item before sales tax is $18.90, what is the rate of sales tax?

Answers

20.25 -18.90 = 1.35

1.35 / 18.90 = 0.071428571

= 7.14%


check:

18.90 x 1.34946 Round to 1.35

18.90 + 1.35 = 20.25


 Sales tax = 7.14%

What is the greatest common factor of 28 and 42 and 70

Answers

The greatest common factor is 7

A golden rectangle is to be constructed such that the longest side is 18 inches long. How long is the other side? (Round your answer to the nearest tenth of an inch.)

Answers

The golden ratio satisfies:

a/b=b/(a+b)  multiply both sides by (a+b)

(a^2+ab)/b=b  multiply both sides by b

a^2+ab=b^2  subtract a^2+ab from both sides

b^2-ab-a^2=0  using the quadratic formula for expediency

b=(a±√(a^2+4a^2))/2  and we know b>0

b=(a+a√5)/2

b=(a/2)(1+√5)

If we let a=1

b=(1+√5)/2

So the golden ratio is (1+√5)/2

Since the longest side is 18in:

(1+√5)/2=18/s

s(1+√5)=36

s=36/(1+√5) in

s≈11.1 in (to nearest tenth of an inch)


Product A is an 8 oz bottle of cough medication that sells for $1.36. Product B is a 16oz bottle of cough medication that cost $3.20. Which product has the lower unit price

Answers

product a
^^^^^^^^^^^^^^^^

Which is equivalent to “12 chairs for every 3 tables”?

Answers

Answer:

A   12 chairs per 3 table

Step-by-step explanation:

4/1 is equivalent to 12 chairs for every 3 tables.

What is fraction?

Fractions are used to represent smaller pieces (or parts) of a whole.

Given a statement, 12 chairs for every 3 tables.

The statement represents 12 chairs per 3 tables, which means 12/3 = 4/1

Therefore, there are 4 chairs for every table.

Hence, 4/1 is equivalent to 12 chairs for every 3 tables.

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A person 5.4 feet tall stands in line of a shadow cast from the top of the house. The shadow hits the top of the person's head, and continues until the shadow ends on the ground 2.4 feet from the person's shoes. The distance along the ground from the tip of the shadow to the house is 14.6 feet. Find the height of the house. Do not round your answer.

Answers

Refer to the diagram shown below.

Let h = the height of the building.

Because triangles ABC and ADE are similar (due to AAA), therefore
DE/BC = AD/AB
That is,
h/5.4 = 14.6/2.4
h/5.4 = 6.0833
h = 6.0833*5.4 = 32.8498 ft

Answer: The height of the house is 32.8498 ft

Cylindrical soup radius 4 centimeters height 12 centimeters what is the volume of the soup to the nearest tenth?

Answers

Volume of a cylinder=(pi)(radius^2)(height)
V=(pi)(4^2)(12)
V=(pi)(16)(12)
V=(pi)(192)
V=603.2 centimeters^3
The volume of a cylinder is:
V = π × r² × h

r = 4
h = 12

V = π × 4² × 12
V = π × 16 × 12
V = π × 192
V = 603.19

The volume of the soup to the nearest tenth is 603.2 cm³.

greens theorem. find the max value of the line integral where f=(13x^2y+3y^3-y)i-12x^3j and C is any positively oriented closed curve. max=?

Answers

The line integral is given by

[tex]\displaystyle\int_C\mathbf f\cdot\mathrm d\mathbf r=\int_C((13x^2y+3y^3-y)\,\mathrm dx-12x^3\,\mathrm dy)[/tex]

By Green's theorem, the line integral along [tex]C[/tex] is equivalent to the double integral over [tex]R[/tex] (the region bounded by [tex]C[/tex])

[tex]\displaystyle\iint_R\left(\frac{\partial(-12x^3)}{\partial x}-\frac{\partial(13x^2y+3y^3-y)}{\partial y}\right)\,\mathrm dx\,\mathrm dy[/tex]
[tex]=\displaystyle\iint_R(-36x^2-(13x^2+9y^2-1))\,\mathrm dx\,\mathrm dy[/tex]
[tex]=\displaystyle\iint_R(1-49x^2-9y^2)\,\mathrm dx\,\mathrm dy[/tex]

Now consider the function [tex]g(x,y)=1-49x^2-9y^2[/tex]. We can think of the double integral above as a volume integral; namely, it's the volume of the region below [tex]g(x,y)[/tex] and above the region [tex]R[/tex] in the [tex]x[/tex]-[tex]y[/tex] plane (i.e. [tex]z=0[/tex]). This volume will be maximized if [tex]C[/tex] is taken to be the intersection of [tex]g(x,y)[/tex] with the plane, which means [tex]C[/tex] is the ellipse [tex]49x^2+9y^2=1[/tex].

For the double integral, we can convert to an augmented system of polar coordinates using

[tex]\begin{cases}x=\frac17r\cos\theta\\\\y=\frac13r\sin\theta\end{cases}[/tex]

where [tex]0\le r\le1[/tex] and [tex]0\le\theta\le2\pi[/tex]. We have the Jacobian determinant

[tex]\det\mathbf J=\left|\dfrac{\partial(x,y)}{\partial(r,\theta)}\right|=\begin{vmatrix}\frac{\partial x}{\partial r}&\frac{\partial x}{\partial\theta}\\\\\frac{\partial y}{\partial r}&\frac{\partial y}{\partial\theta}\end{vmatrix}[/tex]
[tex]\det\mathbf J=\begin{vmatrix}\frac17\cos\theta&-\frac17r\sin\theta\\\\\frac13\sin\theta&\frac3r\cos\theta\end{vmatrix}=\dfrac r{21}[/tex]

So the double integral, upon converting to our polar coordinates, is equivalent to

[tex]=\displaystyle\frac1{21}\int_{\theta=0}^{\theta=2\pi}\int_{r=0}^{r=1}\left(1-49\left(\frac r7\cos\theta)^2-9\left(\frac r3\sin\theta\right)^2\right)r\,\mathrm dr\,\mathrm d\theta[/tex]
[tex]=\displaystyle\frac1{21}\int_{\theta=0}^{\theta=2\pi}\int_{r=0}^{r=1}(1-r^2\cos^2\theta-r^2\sin^2\theta)r\,\mathrm dr\,\mathrm d\theta[/tex]
[tex]=\displaystyle\frac1{21}\int_{\theta=0}^{\theta=2\pi}\int_{r=0}^{r=1}(r-r^3)\,\mathrm dr\,\mathrm d\theta[/tex]
[tex]=\displaystyle\frac{2\pi}{21}\int_{r=0}^{r=1}(r-r^3)\,\mathrm dr\,\mathrm d\theta[/tex]
[tex]=\dfrac\pi{42}[/tex]

Final answer:

To find the max value of a line integral over a closed curve using Green's Theorem, consider the curl of the given vector field and apply the theorem to express the result. The maximum value of the line integral is -2y²dy, determined through vector calculus and Green's Theorem application.

Explanation:

Green's Theorem states that for a vector field f in the form given, the max value of the line integral over any positively oriented closed curve C can be found by considering the curl of f.

By applying Green's Theorem, we can find that the maximum value of the line integral is -2 y²dy.

This computation involves utilizing vector calculus and understanding how to apply Green's Theorem to find the extremum of the line integral.

A group of ladies meet for an afternoon tea party. They bring all their cats. In all, there are 26 heads and 84 feet. How many ladies and how many cats are in the room

Answers





X= ladies       y = number of cats 

Each lady has 2 feet and each cat has 4 feet 

<=> 

x + y = 26 (1) => number of characters 
2x + 4y = 84 (2) => number of feet 

<=> operation : (1) * 2 

2x + 2y = 52 (1') 
2x + 4y = 88 (2') 

<=> operation : (2') - (1') 

2y = 26 

<=> 

y = 20 and x = 32- 16 = 16

10 ladies and 16 cats
h=p+c  (heads equals the sum of people and cats) since there are 26 heads:

p+c=26, solve for c, subtract p from both sides

c=26-p, now for feet...

2p+4c=f, using c found above gives you:

2p+4(26-p)=f and we are told that there are 84 feet so:

2p+4(26-p)=84  perform indicated multiplication on left side

2p+104-4p=84, combine like terms on left side

-2p+104=84  subtract 104 from both sides

-2p=-20  divide both sides by -2

p=10, and since c=26-p

c=26-10

c=16

So there are 10 people and 16 cats in the room.


You deposit $70 in a savings account that pays an annual interest rate of 30%. How much simple interest would you earn in 2.5 years?

Answers

The formula is
I=prt
I interest earned?
P principle 70
R interest rate 0.3
T time 2.5 years
I=70×0.3×2.5
I=52.5

"apply quickselect to find the median of the list of numbers 9, 12, 5, 17, 20, 30, 8."

Answers

Final answer:

To find the median using quickselect, choose a pivot value, partition the list, and repeat the process with the appropriate partition until the pivot index matches the desired median index.

Explanation:

The median of a list of numbers is the middle value when the numbers are arranged in ascending order. To apply quickselect to find the median, start by choosing a pivot value from the list. Partition the list and move all values smaller than the pivot to the left and all values larger than the pivot to the right. If the pivot index is equal to the desired median index, then the pivot value is the median. Otherwise, if the pivot index is smaller, repeat the process with the right partition; if the pivot index is larger, repeat with the left partition.

In the given example, let's apply quickselect to find the median:

Choose a pivot value, let's say 17.

Partition the list: 5, 8, 9, 12, 17, 20, 30

The pivot index is 4, which is less than the desired median index.

Repeat the process with the right partition: 17, 20, 30

Choose a new pivot value, let's say 20.

Partition the list: 17, 20, 30

The pivot index is 1, which is equal to the desired median index.

Therefore, the median of the list of numbers 9, 12, 5, 17, 20, 30, 8 is 17.

A home has dimensions of 35 feet by 57 feet that include an attached 24-foot by 22-foot garage and a 200-square-foot screened porch. how many square feet of gross living area does the home have

Answers

35*57 = 1995
1995 - ((24*22)+200) = 1267
1267 is your answer.

what is the square root of -1?

Answers

the square root of 1 is 1
The websites I looked at all said "i" and my calculator decided that it has no idea.

three tables are placed side by side. one table is 6 feet 9 inches, another is 5 feet 11 inches wide, and the third is 2 feet 10 inches wide. how wide are they combined

Answers

15 feet 6 inches.
6+5+2=13 feet
10+9+11=30 inches
30 inches in feet is 2 and 6 inches.

How is a calculation of net worth different from a day-to-day or month-to-month tallying of expenses?

Answers

the difference in tallying of expenses from a day to day and month to month is the consistency. in a day to day basis it is consistent the time for a day is 24 hrs it will not change, so you will really know why the expenses goes up or down/ unlike for a month to month it is inconsistent,, some months have 30, 31 or 28 days in a month.

What is the probability of rolling a number less than or equal to 8 with the sum of two dice, given that at least one of the dice must show a 6?

Answers

Given that one die is a 6. So for the sum of the dice to be less than or equal to 8, the other die must be equal to or less than 2.

And the probability of roll a two or less is:

P(≤2)=2/6=1/3
[tex]|\Omega|=6^2=36\\ |A|=4\\\\ P(A)=\dfrac{4}{36}=\dfrac{1}{9}\approx11\%[/tex]

how do you make a equivalent ratio?

Answers

[tex]\bf Rowley\quad 16:14\implies \cfrac{16}{14}\qquad Rivera\quad 64:60\implies \cfrac{64}{60} \\\\\\ \textit{so, simplifying both fractions } \begin{cases} \cfrac{16}{14}\implies \cfrac{8}{7}\\\\ \cfrac{64}{60}\implies \cfrac{16}{15} \end{cases}\qquad \cfrac{8}{7}\ne \cfrac{16}{15}[/tex]

If 3✖️/4 =7 ➖x/3,then x=

Answers

3x/4 = 7 - x/3    -> multiply both sides by 3

9x/4 = 21 - x     -> multiply both sides by 4
9x = 84 - 4x
13x = 84
x = 84/13


What is the next number in the series? 83 79 75 71 67 ?

Answers

Answer:

Given the series : 83 , 79 , 75 ,  71 , 67, ?

Difference of two consecutive terms;

79 -83 = -4

75 -79 = -4

71-75 = -4

67-71= -4

Since, you can see that the number is decreases by 4 every time.

Let unknown term be x

then;

x - 67 = -4

x = 67-4

x = 63.

Therefore, the next term in the series is 63.


The next number in the series is 63.

In the given series, each number is decreasing by 4.

We can observe that the first number, 83, is decreased by 4 to get the next number, 79.

Similarly, each subsequent number is obtained by subtracting 4 from the previous number.

Following this pattern, the next number would be obtained by subtracting 4 from the last number in the series, which is 67.

67 - 4 = 63

Therefore, the next number in the series is 63.

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A distribution x is known to have a mean value of 5 and a standard deviation of 5. what is its mean square value (i.e., the expected value of x2)?

Answers

[tex]\mathbb V(X)=\mathbb E(X^2)-\mathbb E(X)^2[/tex]
[tex]\implies 5^2=\mathbb E(X^2)-5^2[/tex]
[tex]\implies\mathbb E(X^2)=50[/tex]
Final answer:

The expected mean square value (E(x^2)) can be found using the formula E(x^2) = μ^2 + σ^2. With the given mean (μ) and standard deviation (σ) as 5, insertion into the formula gives E(x^2) = 5^2 + 5^2 = 50.

Explanation:

The mean square value, often denoted as E(x2), is calculated from the mean (μ) and standard deviation (σ) using this formula: E(x2) = μ2 + σ2. Based on the given distribution values, you're provided with a mean (μ) of 5 and a standard deviation (σ) of 5. By following the formula, you input these values, and it becomes E(x2) = 52 + 52. Thus, E(x2) = 25 + 25 which is equal to 50. So, the mean square value or the expected value of x2 for this distribution is 50.

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