Find a degree 3 polynomial with real coefficients having zeros x = 3 and x = 1 − 2 i and a lead coefficient of 1. Write in expanded form.

Answer:

x = 57°

Step-by-step explanation:

We are given a triangle, and we know that the angles in the triangle are <A, <B, and <C.

We know that m<A = 78° and  m<B=45°. We want to find the measure of angle C, which we know currently as x.

Recall that all angles in a triangle add up to 180°. This means that m<A + m<B + m<C = 180°.

Substituting what we know into that equation, we get:

78° + 45° + x = 180°

We can add 78 and 45 degrees together.

123° + x = 180°

Subtract 123° from both sides.

x = 57°

So x, or m<C is 57°.

The probability of getting at least 2 tails in 4 coin tosses is 11/16 or approximately 0.6875.

Probability is a measure of the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.

To determine P(at least 2 tails), we need to add up the probabilities of all the outcomes in the sample space that have at least 2 tails.

Looking at the tree diagram, we can see that there are 11 outcomes that have at least 2 tails:

TTTT TTTH TTHT TTHH THTT THHT THTH HTTT HTTH HTHT HHTT

The probability of each outcome can be found by multiplying the probabilities along the branches that lead to that outcome. Since the coin is fair, the probability of getting heads or tails on any given toss is 1/2.

So for example, the probability of the outcome TTHH is (1/2) x (1/2) x (1/2) x (1/2) = 1/16.

We can find the probability of getting at least 2 tails by adding up the probabilities of the 11 outcomes listed above:

P(at least 2 tails) = [tex](1/2)^4[/tex] + 4 x [tex](1/2)^3[/tex] x (1/2) + 6 x [tex](1/2)^2[/tex] x [tex](1/2)^2[/tex]

P(at least 2 tails) = 1/16 + 4/16 + 6/16 = 11/16

Therefore, the probability of getting at least 2 tails in 4 coin tosses is 11/16 or approximately 0.6875.

To know more about probability visit:

https://brainly.com/question/13604758

#SPJ1

As a result, the following is the given function's Fourier transform:

F(ω) = (1/π) * (sin(ω) / ω)

The Fourier transform is a mathematical operation that separates the frequencies that make up a waveform, which is a function of time. The Fourier transform's output is a complex valued function of frequency.

We must assess the integral in order to determine the given function's Fourier transform, f(x):

F() is equal to 1/(2) * [from - to -] F(x) E(-i) X Dx

where the frequency parameter is and i is the fictitious unit.

We can simplify the integral bounds as follows since the function f(x) is non-zero only in the range -1 x 1.

F() is equal to 1/(2)*[from -1 to 1] F(x) E(-i) X Dx

Let's analyse this integral in stages.

The value of the function f(x) is zero for x -1 or x > 1. As a result, we can increase the integral limits to - and + without changing the integral's value:

F(ω) = 1/(2π) * ∫(from - to -) F(x) = E(-ix) dx = 1/(2*) * the range [- to -1] from -1 to 1 + 0 dx 2dxe(-ix)+[from 1 to ] 0 dx = 1/(2π) * 2 * ∫E(-ix) dx [from -1 to 1]

Let's concentrate on the central integral:

∫[in the range of -1 to 1] e(-ix) dx = (-1/i)* [e^(-iωx)](-1/i)* _[from -1 to 1] (e^(-iω) - e^(iω))

Adding this back into the formula for the Fourier transform results in:

F(ω) = 1/(2π) * 2 * (-1/iω) * (e^(-iω) - e^(iω)) = (1/π) * (sin(ω) / ω)

As a result, the following is the given function's Fourier transform:

F(ω) = (1/π) * (sin(ω) / ω).

To know more about fourier transform visit-https://brainly.com/question/29063535

#SPJ1

The Fourier transform of the given function f(x) is:

F(ω) = 2 [ - sin(ω) / ω ]

What is Fourier Analysis?

Fourier analysis is a branch of mathematics that deals with the study of the decomposition of a complex signal into simpler components, known as harmonics, using a mathematical tool called the Fourier transform.

To find the Fourier transform of the given function f(x), we need to use the following formula:

F(ω) = ∫ f(x) e^(-iωx) dx

where F(ω) denotes the Fourier transform of f(x) and ω is the frequency variable.

Let's apply this formula to the given function f(x):

F(ω) = ∫ f(x) [tex]e^{(-iωx)}[/tex] dx

= ∫[tex]-1^{1}[/tex] 2 [tex]e^{(-iωx)}[/tex] dx + ∫{-∞}^{∞} 0 [tex]e^{(-iωx)}[/tex] dx

= 2 ∫_[tex]{1}^{{1}}[/tex]  [tex]e^{(-iωx)}[/tex] dx + 0

= 2 [ (1/iω)  [tex]e^{(-iωx)}[/tex]  ]_[tex]-1^{1}[/tex]

= 2 [  [tex]e^{(-iωx)}[/tex]  - [tex]e^{(iω)}[/tex] / iω ]

Simplifying this expression, we get:

F(ω) = 2 [ (cos(ω) - i sin(ω)) / iω - (cos(-ω) - i sin(-ω)) / iω ]

= 2 [ (cos(ω) - i sin(ω)) / iω - (cos(ω) + i sin(ω)) / iω ]

= 2 [ -2i sin(ω) / (2iω) ]

= 2 [ - sin(ω) / ω ]

Therefore, the Fourier transform of the given function f(x) is:

F(ω) = 2 [ - sin(ω) / ω ]

To learn more about Fourier Analysis from the given link:

https://brainly.com/question/31683614

#SPJ1

Laurel spent a total of 65 minutes exercising across these activities.

To calculate the total minutes Laurel spent exercising, we simply need to add the minutes spent on each activity:

Jogging: 30 minutes

Swimming: 20 minutes

Yoga: 15 minutes

Total minutes = 30 + 20 + 15 = 65 minutes

Laurel spent a total of 65 minutes exercising across these activities.

Read more about time here:

https://brainly.com/question/26046491

#SPJ1

How many minutes did Laurel spend exercising in total, if she participated in different activities for the following durations: 30 minutes of jogging, 20 minutes of swimming, and 15 minutes of yoga?

Answer:

Yo, the equation of the circle that's chillin' and just grazin' against the line y = -4, with its center chillaxin' at (5, 4), is:

(x - 5)^2 + (y - 4)^2 = r^2

where r is the radius of the circle. Keep it cool, bro!

Answer:

33.444

Step-by-step explanation:

The area of the rug which has the shape of a decagon would be = 178.79ft²

To calculate the area of the rug that has the shape of a decagon, the formula for the area of a decagon should be used. That is;

Area of decagon = 5/2a²√5+2√5

Where;

a = side length = 4.25 ft

area = 5/2(4.25)²√5+2√5

= 5/2(18.06)√5+2√5

= 45.15× √5+2√5

= 45.15 × √15.65247584

= 45.15× 3.96

= 178.79ft²

Learn more about area here:

https://brainly.com/question/28470545

#SPJ1

Answer:

it (8,0) or (0,8)

Step-by-step explanation:

im not sure but hope this helps.

Complete this statement given that g(x) = -f(x): "This graph of function g is graph (C)  because the graph of function g is the result of a reflection applied to the graph of function f."

The graph of function g is a reflection of the graph of function f across the x-axis because of the negative sign in front of f(x) in the definition of g(x) = -f(x). This reflection results in a vertical flip of the graph. When a function is multiplied by a negative value, it gets reflected across the x-axis. The "C" option in the dropdown menu indicates a reflection across the x-axis.

The transformation applied to the graph of function f to get the graph of function g is a reflection, and it occurs due to the negative sign (-) in front of f(x) in the definition of g(x) = -f(x).

To know more about reflection applied :

https://brainly.com/question/31043277

#SPJ2

Step-by-step explanation:

remember, the general equation for a circle is

(x - h)² + (y - k)² = r²

r is the radius, (h, k) is the center point of the circle.

the line (0, 8) to (0, -2) is a diameter, so, the center of the circle is the midpoint between both points.

remember, the midpoint between 2 points (x1, y1) and (x2, y2) is

((x1+x2)/2, (y1+y2)/2)

in our case :

((0+0)/2, (8-2)/2) = (0, 3)

the distance from the center point to the endpoint is e.g

(0, 3) to (0,8) = 8-3 = 5.

and that is the radius.

the equation of the circle is therefore :

(x - 0)² + (y - 3)² = 5²

x² + (y - 3)² = 25

Answer:

(c) 6 days

Step-by-step explanation:

First, we need to calculate how many trips the truck can make per day. We will assume that the truck is filled to its maximum capacity on each trip.

The volume of the truck can be calculated by multiplying its dimensions:

8.17 feet x 9.25 feet x 18.5 feet = 1,482.51 cubic feet

We need to convert this to cubic meters:

1,482.51 cubic feet x 0.0283 cubic meters per cubic foot = 42.01 cubic meters

Therefore, each round trip can transport 42.01 cubic meters of construction waste.

To calculate how many trips are required to remove all the waste, we divide the total volume of waste by the volume of waste per trip:

1,425 cubic meters / 42.01 cubic meters per trip = 33.89 trips

Since the driver can make one round trip per hour, it will take approximately 34 hours to transport all the waste to the landfill.

If the driver starts on Monday at 8 am, they will have 8 working hours that day, for a total of 8 trips. On Tuesday and Wednesday, they will have 8 working hours each day, for a total of 16 trips. Therefore, by noon on Wednesday, they will have made 24 trips, leaving 9.89 trips remaining.

Since each day the driver can make 8 trips, they will need approximately 2 more days of work to completely remove the construction waste from the demolition site. Therefore, the answer is (c) 6 days.

Note: This calculation assumes that there are no delays or complications in the transportation process, such as traffic or equipment malfunctions, which could affect the actual time required to remove all the waste.

Answer:

y = (360 - 117 - 75) / 2 = 84 degrees

Step-by-step explanation:

a) The shape shown in the image could be described as a kite.

b) Since the opposite angles in a kite are equal, we can find the measure of angle y by subtracting the measures of angles x and z from 360 degrees and then dividing by 2, since the sum of the interior angles of a quadrilateral is always 360 degrees. Thus, we have:

y = (360 - x - z) / 2

We can see from the figure that angle x has a measure of 117 degrees, since it is opposite to angle y in one of the congruent triangles formed by the diagonal of the kite. Similarly, angle z has a measure of 75 degrees, since it is opposite to angle y in the other congruent triangle. Substituting these values into the above equation, we get:

y = (360 - 117 - 75) / 2 = 84 degrees

Therefore, the measure of angle y is 84 degrees.

We can see that opposite sides of the quadrilateral are parallel and equal in length, which indicates that the shape is a parallelogram.

To find the size of angle y, we can use the fact that opposite angles in a parallelogram are equal. Let's call the angle at the bottom left corner of the parallelogram "x". Then, we know that:

x + y = 180° (because the two angles form a straight line)

We also know that the angle at the top left corner of the parallelogram is equal to x (because opposite angles in a parallelogram are equal). And since the four angles of a quadrilateral add up to 360°, we can write:

2x + 2y = 360°

Simplifying this equation gives:

x + y = 180°

x + y = 180° - x + y

2x = 180° - x

3x = 180°

x = 60°

Now we can substitute x = 60° into the equation x + y = 180° to solve for y:

60° + y = 180°

y = 180° - 60°

y = 120°

Therefore, the size of angle y is 120°.

to know more about equation

brainly.com/question/29538993

#SPJ1

Answer:

a. km

b.350 ml

c.60 gr

Step-by-step explanation:

the units may be bigger though to whats the options is

To solve this problem, we can use the combination formula, which is:

n C r = n! / (r! * (n-r)!)

where n is the total number of students eligible for the committee, r is the number of students we want to choose, and ! denotes the factorial function.

In this case, we want to choose a committee of 8 students from a pool of 8 freshmen, 9 sophomores, 8 juniors, and 10 seniors. So, the total number of students eligible for the committee is:

n = 8 + 9 + 8 + 10 = 35

We want to choose a committee of 8 students, so r = 8. Therefore, the number of ways we can choose a committee of 8 students is:

35 C 8 = 35! / (8! * (35-8)!) = 35! / (8! * 27!) ≈ 1,121,112 ways

So there are approximately 1,121,112 ways to choose a dance committee of 8 students from the eligible pool.

The probability of not wearing a seat belt given that the driver survived a car accident is 28%.

The probability of not wearing a seat belt and that the driver survived a car accident will be calculated using Bayes' theorem.

The Bayes' theorem states that: P(A|B) = P(B|A) * P(A) / P(B) where A is the event of not wearing a seat belt and B is the event of the driver surviving a car accident.

Driver Survived/No seat belt = 168,132

Total Sample = 583,425

Plugging the values, we get:

P(A|B) = 168,132 / 583,425

P(A|B) = 0.288

P(A|B) = 28.8%.

Full question "The table shows the outcome of car accidents in a certain state for a recent year by whether or not the driver wore a seat belt: Wore Seat Belt 415,293 No Seat Belt Total Driver Survived Driver Died Total 168,132 583,425 521 415,814 1643 169,775 2164 585,589 Find the probability of not wearing a seat belt; given that the driver survived a car accident: The probability as a decimal is 0.288 (Round to three decimal places as needed.) The probability as a fraction is (Type an integer or a simplified fraction).

Read more about probability

brainly.com/question/24756209

#SPJ1

Answer:

114.29

Step-by-step explanation:

The exponential growth equation that passes through the given points is [tex]y = 6 \times 1.5^x[/tex]

How to find an exponential growth equation ?

An exponential growth equation that passes through the given points. We aretaking the equation takes the form [tex]y = a×b^x [/tex] where a is the initial value and b is the growth factor. We can use the three given points to form a system of equations.

It is clear that the equation passes through points ( -1,4), (0,6), (1,9)

So,

[tex]4 = ab^{-1} \\ 6 = ab^0 \\ 9 = a \times b^1[/tex]

We are dividing the second equation by the first equation,

[tex] \frac{6}{4} = \frac{(ab^0)}{(ab^{-1})}[/tex]

1.5 = b

Next, we can use this value of b in the third equation to find a,

9 = a×1.5¹

a = 6

Therefore, the exponential growth equation that passes through the given points is [tex]y = 6 \times 1.5^x[/tex]

Learn more about exponential growth equation here,

https://brainly.com/question/27207350

#SPJ1

Using trigonometric ratios θ = 26.57°

A trigonometric ratio is the ratio of the sides of a triangle.

To find the value of θ, we notice that in the triangle, we have the hypotenuse side and the adjacent side.

Using the trigonometric ratio cosθ = adjacent/hypotenuse

where

So, substituting the values of the variables into the equation, we have that

cosθ = adjacent/hypotenuse

= 6√5/15

= 2√5/5

= 2 × 2.236/5

= 4.472

= 0.8944

cosθ = 0.8944

θ = cos⁻¹(0.8944)

= 26.57°

So, θ = 26.57°

Learn more about trigonometric ratios here:

https://brainly.com/question/29529495

#SPJ1

The numbers 0, 1, and -1 are zeros of multiplicity 1.

What is quadratic equation?

it's a second-degree quadratic equation which is an algebraic equation in x. Ax2 + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term, is the quadratic equation in its standard form. A non-zero term (a 0) for the coefficient of x2 is a prerequisite for an equation to be a quadratic equation. The x2 term is written first, then the x term, and finally the constant term is written when constructing a quadratic equation in standard form. In most cases, the numerical values of letters a, b, and c are expressed as integral values rather than fractions or decimals.

To find the zeros of the function [tex]y=7x^3-7x[/tex], we can set y equal to zero and solve for x:

[tex]7x^3 - 7x = 0[/tex]

Factor out 7x:

[tex]7x(x^2 - 1) = 0[/tex]

Factor the quadratic expression:

7x(x - 1)(x + 1) = 0

The zeros of the function are the values of x that make y equal to zero. From the factored expression, we see that the zeros are:

x = 0 (with multiplicity 1)

x = 1 (with multiplicity 1)

x = -1 (with multiplicity 1)

Therefore, the correct choice is: The numbers 0, 1, and -1 are zeros of multiplicity 1.

Learn more about quadratic equation , by the following link.

https://brainly.com/question/1214333

#SPJ1

Carlos needs to earn at least 16 points on the final quiz to earn at least a 90% average.

We have,

Let's start by finding the total number of points that Carlos can earn in the class:

Total points

= 5 quizzes x 20 points per quiz

= 100 points

If Carlos needs an average of 90% or greater, that means he needs to earn at least 90 points out of 100.

Total points earned.

= 18 + 19 + 17 + 20

= 74 points

To find the minimum score Carlos needs on the final quiz, we can set up an inequality:

(74 + x) / 5 ≥ 0.9

where x is the score on the final quiz.

Simplifying this inequality.

74 + x ≥ 90

x ≥ 16

Therefore,

Carlos needs to earn at least 16 points on the final quiz to earn at least a 90% average.

Learn more about inequalities here:

https://brainly.com/question/20383699

#SPJ1

Answer:

D)

Step-by-step explanation:

The inverse operation of division by zero is deemed undefined; therefore, significant analysis for this expression cannot take place.

It appears there's some confusion regarding the expression you supplied. To better interpret it, please consider making further explanations visible.

Nonetheless, an attempt to interpret is provided below:

40 divided by [(2=3)(17=15)]

Essentially, the intention is to multiply the results of each step in this expression. Let us begin assessing the individual components:

The first, 2=3 proves false as a statement; thus, we can grant it a value of zero.

Likewise, 17=15 sets out to be incorrect which, rightfully so, can also assume a figure of nothingness.

Let us now multiply the outcomes of both statements:

(0)(0) = 0

Finally, we divide 40 - the stated number - by the result from before:

40 ÷ 0

Conclusively, the inverse operation of division by zero is deemed undefined; therefore, significant analysis for this expression cannot take place.

Read more about inverse operation here:

https://brainly.com/question/28707370

#SPJ1

Evaluate the following:

40 divided by [2=3 (17=15)]

According to the given data the maximum profit is $780,000 when 6,500 bikes are sold.

The marginal profit function represents the rate at which the profit changes as the number of units sold changes. It is the derivative of the profit function with respect to the number of units sold. The marginal profit function is important in business because it helps companies to determine the optimal level of production that maximizes profit. The critical value of the marginal profit function (when it equals zero) indicates the point where the profit function changes from increasing to decreasing, or vice versa, which can help companies to identify the optimal production level that maximizes profit.

a) To find the marginal profit function, we need to take the derivative of the profit function with respect to x:

P'(x) = -4x + 260

b) To find the critical value, we need to set the marginal profit function equal to zero and solve for x:

-4x + 260 = 0

x = 65

Therefore, the critical value is x = 65.

c) To find the maximum profit, we need to evaluate the profit function at the endpoints of the given interval (3 and 80) as well as at the critical value (65), and then compare the values to see which one is the largest. We can use a table to organize the values:

x P(x)

3 190

65 7800

80 2600

Therefore, the maximum profit is $780,000, which occurs when 6,500 bikes are sold (since each x represents 100 bikes).

To know more about marginal profit function visit:-

https://brainly.com/question/30685808

#SPJ1

Answer:

To find the LCM of the two expressions, we need to factor each expression completely and then take the product of the highest powers of each factor.

So, let's factor each expression:

6(x – 1)2(x + 2)(x – 3) = 2 × 3 × (x – 1) × (x – 1) × (x + 2) × (x – 3)

9(x – 1)(x + 2)2(x – 3) = 3 × 3 × (x – 1) × (x + 2) × (x + 2) × (x – 3)

Now, we can identify the highest powers of each factor.

The LCM will be the product of those highest powers:

LCM = 2 × 3 × 3 × (x – 1)2 × (x + 2)2 × (x – 3)

Therefore, the LCM of 6(x – 1)2(x + 2)(x – 3) and 9(x – 1)(x + 2)2(x – 3) is 54(x – 1)2(x + 2)2(x – 3).

To solve for the value of x, x is 2.

What is a simple equation?

A given equation which has one unknown variable whose value is to be determined is called a simple equation. This requires the applications of some mathematical principles to know the value of the unknown.

In the given question, the common factor is 25. so divide by 25 to have;

125x - 150 = 100

divide by the common factor, we have;

125x/25 - 150/25 = 100/25

5x - 6 = 4

So that, solve in the usual manner;

5x = 4 + 6

    = 10

5x = 10

x = 10/5

 = 2

x = 2

After solving the equation, the value of x is 2.

Learn more about simple equations at https://brainly.com/question/28386529

#SPJ1

The temperature dropped by 4 degrees Fahrenheit per hour during the 6-hour period.

The temperature drop each hour is calculated as follows;

temperature drop per hour = (change in temperature) / (time elapsed)

change in temperature = final temperature - initial temperature

change in temperature = 58 degrees F - 82 degrees F

change in temperature = -24 degrees F

The time elapsed =  6 hours

The change in temperature or drop in temperature is calculated as;

temperature drop per hour = (-24 degrees F) / (6 hours)

temperature drop per hour = -4 degrees F/hour

Learn more about change in temperature here: https://brainly.com/question/25677592

#SPJ1

The value of the expression, which serves as the basis for the response, is 265 for the provided question. answer is option (c).

An expression is a group of numbers, variables, and mathematical operations used to represent a quantity or value in mathematics. Expressions can be straightforward or intricate, and they can contain exponents, coefficients, variables, and constants. Several methods, including factoring, the order of operations, and algebraic manipulation, can be used to evaluate or simplify expressions. The values of an expression's variables and constants determine its value.

The expression −204 − 64 − (−3) can be streamlined by applying the following arithmetic rules:

−204 − 64 − (−3) = −204 − 64 + 3

[the double negative turns positive because]

= −265

Consequently, the expression's value is -265. The correct answer is option (c).

To know more about Expression, visit:

brainly.com/question/1859113

#SPJ1

the amount closest to the difference between the interest Victoria would earn in Account B and the interest she would earn in Account A at the end of 4 years is $22.32.

What is compound interest?

The interest on savings that is computed on both the initial principal and the interest accrued over time is known as compound interest. Compound interest is computed by multiplying the starting principal amount by one and the annual interest rate is raised to the number of compound periods minus one. The final step is to deduct the initial loan principal from the calculated value.

Using the formula for compound interest, we can find the amount at the end of 4 years in Account B:

[tex]A = P * (1 + r/n)^{(nt) = $1500 * (1 + 0.035/1)^{(14) = $1732.32[/tex]

The interest earned in Account B over 4 years is the difference between the amount at the end of the period and the principal:

I = A - P = $1732.32 - $1500 = $232.32

Therefore, the difference between the interest Victoria would earn in Account B and the interest she would earn in Account A at the end of 4 years is approximate:

$232.32 - $210 = $22.32

Therefore, the amount closest to the difference between the interest Victoria would earn in Account B and the interest she would earn in Account A at the end of 4 years is $22.32.

Learn more about compound interest, by the following link

https://brainly.com/question/24924853

#SPJ1