Find the domain of the vector-valued function. (Enter your answer using interval notation.) r(t) = √(16 – t^2i) + t^2j − 6tk

Answers

Answer 1

The domain of the vector-valued function is:

[-4, 4]

The domain of the vector-valued function r(t), we need to determine the values of t that make the function well-defined.

The first component of the vector function is given by:

√(16 – t²i)

The square root is only defined for non-negative values.

Thus, we must have:

16 – t²i ≥ 0

Solving for t, we get:

-4 ≤ t ≤ 4

Next, there are no restrictions on the second component of the vector function, so it is defined for all values of t.

Finally, the third component of the vector function is defined for all values of t.

We must identify the values of t that give the vector-valued function r(t) a well-defined domain.

Keep in mind that the vector function's initial component is supplied by: (16 - t2i).

Only positive numbers can be used to define the square root.

Therefore, we require:

16 – t²i ≥ 0

When we solve for t, we obtain: -4 t 4.

The second component of the vector function is unrestricted and is defined for all values of t.

The vector function's third component is thus specified for all values of t.

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Answer 2

For a vector-valued function r(t) to have a domain, all its component functions must be defined.

In this case, the first component function is √(16 – t^2), which is defined only for values of t such that 16 - t^2 is nonnegative, since the square root of a negative number is undefined in the real numbers. Therefore, we must have:

16 - t^2 ≥ 0

Solving for t, we get:

-4 ≤ t ≤ 4

This gives the domain of the first component function as the closed interval [-4, 4].

The second and third component functions, t^2 and -6t, are defined for all real numbers.

Therefore, the domain of the vector-valued function r(t) is the same as the domain of its first component function, which is:

[-4, 4]

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Related Questions

How do you find the image of a point across a line?

Answers

The point's x and y coordinates may be switched to create the point's image around the line y=x. As an illustration, consider the picture of the point (a,b) about the line y=x: (b,a).

What is image coordinate system?

A main image's spatial reference is specified by an image coordinate system. No distortions appear when a main picture is presented in its own image coordinate system, and secondary images and features can be projected onto the primary image using its image coordinate system.

The point B(l,m) is the point that corresponds to the point P in the line mirror ax+by+c=0 such that PB is perpendicular to ax+by+c=0 and the midpoint L of PB falls on the line ax+by+c=0.

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EXPRESS 7 + 12x -3x^2 in the form a+b(x+c)^2

Answers

Answer:

19 - 3(x - 2)²

Step-by-step explanation:

7 + 12x - 3x² ( rearrange terms in x )

7 - 3x² + 12x ( factor out - 3 from each of the x- terms )

= 7 - 3(x² - 4x)

using the method of completing the square on x² - 4x

add/subtract ( half the coefficient of the x- term )² to x² - 4x

= 7 - 3(x² + 2(- 2)x + 4 - 4)

= 7 - 3(x - 2)² - 3(- 4)

= 7 - 3(x - 2)² + 12

= 19 - 3(x - 2)² ← in the form a + b(x + c)²

with a = 19 , b = - 3 , c = - 2

In AABC, a = 11, b = 20, and c = 28. Find m/A.

Answers

Measure of angle A is m∠A = 18.358

Solve the compound inequality n+2≤−5 and n+6≥−6

Answers

The solution of the inequality are n  ≤ -7 and n ≥ -12.

How to solve compound inequality?

A compound inequality is an inequality that combines two simple inequalities.

Therefore, let's solve the compound inequality individually.

n + 2 ≤ −5 and  n + 6 ≥ −6

Hence,

n + 2 ≤ − 5

subtract 2 from both sides of the inequality

n + 2 - 2 ≤ − 5 - 2

n  ≤ -7

n + 6 ≥ −6

subtract 6 from both sides of the inequality

n + 6 ≥ −6

n + 6 - 6 ≥ −6 - 6

n ≥ -12

Therefore, n  ≤ -7 and n ≥ -12

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How many images will be formed if 2 mirrors are kept at an angle of 72?

Answers

The number of images formed by two mirrors kept at an angle of 72° are;

5 images, If the object is positioned symmetrically between the mirrors

4 images if the object is placed asymmetrically between the mirrors

How can the number of images formed by two mirrors placed at an angle be found?

The formula that can be used to find the number of images formed, n, when two mirrors are placed at a specified angle, θ, to each other is presented as follows;

If [tex]\dfrac{360^{\circ}}{\theta}[/tex] is an even number, the number of images formed is obtained using the formula;

[tex]n = \dfrac{360^{\circ}}{\theta} -1[/tex]

If [tex]\dfrac{360^{\circ}}{\theta}[/tex] is an odd number, the number of images formed is obtained using the formula;

[tex]n = \dfrac{360^{\circ}}{\theta} -1[/tex]

If [tex]\dfrac{360^{\circ}}{\theta}[/tex] is an odd number, and the position of the object is asymmetric, the number of images formed is obtained using the formula;

[tex]n = \dfrac{360^{\circ}}{\theta}[/tex]

When θ = 72°, we get;

[tex]n = \dfrac{360^{\circ}}{72^{\circ}} = 5[/tex], which is an odd number, therefore;

If the object is placed symmetrically between the two mirrors, the number of images formed is therefore;

[tex]n = \dfrac{360^{\circ}}{72^{\circ}}-1 = 4[/tex]

If the object is placed asymmetrically between the two mirrors, the number of images formed is [tex]n = \dfrac{360^{\circ}}{72^{\circ}} = 5[/tex]

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Can someone help me please Assap?

Answers

Step-by-step explanation:

[tex]\frac12(8k+12k^2+6k^3)\\=4k+6k^2+3k^3\\[/tex]

Rearrange into descending order:

[tex]\boxed{3k^3+6k^2+4k}[/tex]

please help!! will give brainliest! only help if you know how to do this! (statistics and two-way tables)

Answers

A representative sample is one that is drawn at random from the population and is large enough to provide accurate data.

What is sample?A population refers to the entire population about which you want to draw conclusions. A sample is the specific group from which you will collect data. The sample size is always less than the total population size.A sample is a subset of the population that is representative of the whole. A sample is sometimes required because accessing the entire population is not always feasible or cost effective.For instance, suppose a researcher is investigating the impact of inflation on US families. It is not possible to reach all of the families in the United States. As a result, the researcher would use a representative sample of US families. This is referred to as a sample.

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Roger received $200 for his birthday. He wants to use the money to buy new clothes for
work. He can buy pants for $30 and shirts for $20. He wants at least 6 new items. Which
combinations of shirts and pants can he buy?

Answers

Answer:

Step-by-step explanation: He can get 150 worth of clothes

He can buy 3 new shirts and 3 pairs of new pants!

Which system has no solution y=-3x+8 6c+2y=-4.5i

Answers

Answer:6c+2y=4.5i

Step-by-step explanation:

i am pretty sure it that answer is because you cant add 2 variables in a problem well 2 different variable

hope its right

Which equation has the solutions x = startfraction negative 3 plus-or-minus startroot 3 endroot i over 2 endfraction? 2x2 + 6x + 9 = 0 x2 + 3x + 12 = 0 x2 + 3x + 3 = 0 2x2 + 6x + 3 = 0.

Answers

The equation that has the solutions [tex]\frac{-3 \pm \sqrt{3}i }{2}[/tex] will be a) 2x² + 6x + 9

Here we have to find the equation which has roots

[tex]\frac{-3 \pm \sqrt{3}i }{2}[/tex]

This means that the factors of the roots will be

[tex]x+\frac{3 + \sqrt{3}i }{2}[/tex] and [tex]x+\frac{3 - \sqrt{3}i }{2}[/tex]

Now since all our options are quadratic equations, they have to be a product of these 2 factors and ONLY an additional numerical co-efficient

Hence we get

[tex][x+\frac{3 + \sqrt{3}i }{2}][x+\frac{3 - \sqrt{3}i }{2}][/tex]

rearranging this will give us

[tex][x+\frac{3}{2} + \frac{ \sqrt{3}i }{2}][x+\frac{3}{2} - \frac{ \sqrt{3}i }{2}][/tex]

using the formula

a² - b² = (a + b)(a - b) we get

(x + 3/2)² - (√3i/2)²

= x² + 9/4 + 3x + 9/4                                                                  [since i² = -1]

Hence we get x² + 3x + 9/2

= a) 2x² + 6x + 9

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Correct Question

Which equation has the roots

[tex]\frac{3 \pm \sqrt{3}i }{2}[/tex]

a) 2x² + 6x + 9 = 0

b) x² + 3x + 12 = 0

c) x² + 3x + 3 = 0

d) 2x² + 6x + 3 = 0.

Which equation shows the value of -1.5 - 2.75

Answers

The value of the given expression is -4.25

What is an expression?

Expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.

Given that, an expression, -1.5 - 2.75

= -1.5 - 2.75

= -1.5 + (-2.75)

= -4.25

Hence, the correct expression is -1.5 + (-2.75) = -4.25

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What is the relationship between squaring and getting the square root?

Answers

Finding a number's square root is the equivalent as squaring it, or the opposite process. When you multiply the square root of a given integer by itself, you get the original number. Since 8 x 8 equals 64, as fact, 8 is the square root of 64.

What is square roots?

It is possible to multiply an integer by its square root in order to obtain the original value. Square root of, end square root is the symbol for this mathematical concept. Contrary to squaring, finding a number's square root is the reverse. For instance, 3 is squared at 9, 32, and its square root at 9, which is 9, is equal to 3. It is simple to multiply by 9 since it is a perfect square.

Thus, there is a reverse relationship between squaring and getting the square root.

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Burger Mania ell 10 chicken nugget for $1. 50,At thi rate how much hould a family pack of 45 chicken nugget

Answers

The cost of a family pack of 45 chicken nuggets = 6.75 dollars

Given that Burger Mania sells 10 chicken nuggets for $1. 50

First we find the cost of one chicken nugget.

10 chicken nuggets = 1. 50 dollars

So, 1 chicken nugget = (1.50) / 10 dollars

                                  = 0.15 dollars

                                  = 15 cents

We need to find the cost of 45 chicken nuggets.

Using Unitary method the cost of 45 chicken nuggets would be,

45 × 0.15 = 6.75 dollars

Therefore, at given rate a family pack of 45 chicken nuggets must be 6.75 dollars

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Determine a series of transformations that would map Figure V onto Figure W.

Answers

The required equation of transformation from figure V to figure W is (-x, y+3).

What is the transformation of geometry over the coordinate plane?

Transform the shapes on a coordinate plane by rotating, reflecting, or translating them. Felix Klein introduced transformational geometry, a fresh viewpoint on geometry, in the 19th century.

Here,
From the figure, it is clearly seen that first the figure gets mirrored on the y-axis, so the translation in the horizontal direction is given as -x. Now after forming the image across the y-axis the figure is translated up by 3 units so vertical translation is given as y +3.
Combine translation is given as {-x, y+3}

Thus, the required equation of transformation from figure V to figure W is (-x, y+3).

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Sierra ha a bottle with 2 cup of orange juice left. I thi enough to make 6 frozen juice bar? Explain

Answers

No, it depends upon the size of the bottle but it's not enough for a normal bottle to make 6 frozen juice bars.

No, 2 cups of orange juice is not enough to make 6 frozen juice bars. Each frozen juice bar typically requires a certain amount of juice, and it is likely that 6 bars would require more than 2 cups of juice. To be sure, you would need to check the recipe or packaging for the frozen juice bars to determine the exact amount of juice required per bar.

It is also important to note that even if the juice is enough to make 6 bars, it might not yield the same taste as desired because of the lack of enough juice, also the freezing process might not work as well as it should because of the small quantity of juice.

Therefore, It is not enough as it depends upon the size of the bottle but it's not enough for a normal bottle to make 6 frozen juice bars.

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Is movie a real image?

Answers

A movie is not a real image, it is a series of still images or frames that are played back in rapid succession to create the illusion of motion.

Real images are those that are formed by light that has been refracted or reflected by an object or lens. These images are located on the same side of the lens as the object and can be projected onto a screen or viewed directly.

In movie, the images are typically captured on film or digitally and then played back on a screen at a high frame rate (usually 24 or 30 frames per second) to create the illusion of motion.

This is known as the persistence of vision effect. The images are not actually moving, but the human eye and brain perceive them as moving because of the rapid succession of still images.

In conclusion, a movie is not a real image, it is a series of still images played back in rapid succession to create the illusion of motion.

Real images are formed by light that has been refracted or reflected by an object or lens, whereas in movie the images are captured on film or digitally and then played back on a screen at a high frame rate to create the illusion of motion.

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What is the image of (-3,-4) after a dilation be a scale factor of 4 centered at the origin?

Answers

The image of the point (-3,-4) after a dilation with a scale factor of 4 centered at the origin is (12,-16).

What is triangle dilation?

Generally, Dilation is a method for producing figures with a similar appearance.

By multiplying the distances between each point with the scale factor, each point is extended outwards from the center point D.

(Towards the outside in the event that the scale factor is greater than 1) To alter the profile of the triangle, move the points A, B, and C respectively.

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Answer:(-12, -16)

Step-by-step explanation:

I took the test

A water tank ha the hape of an inverted right circular cone, with radiu at the top 15 meter and the depth 1 meter. Water i flowing into the tank at the rate of 2 cubic meter per minute. How fat i the depth of water in the tank increaing at the intant when the depth i 8 meter

Answers

The depth of water in the tank is increasing at the rate of approximately 0.0135 meters per minute when the depth is 8 meters.

A cone is a three-dimensional geometric structure with a smooth transition from a flat base—often but not always circular—to the point at the top, also known as the apex or vertex.

To find the rate at which the depth of water in the tank is increasing, we can use the formula for the volume of a cone:

V = (1/3) * π * r^2 * h

Where V is the volume, π is pi, r is the radius, and h is the height (depth) of the cone.

We know that the radius at the top of the tank is 15 meters, the depth of the tank is 8 meters, and the rate of water flow is 2 cubic meters per minute.

So we can use the above formula to find the rate at which the depth is increasing.

Let's call the rate at which the depth is increasing "dh/dt"

V = (1/3) * π * 15^2 * 8

dV/dt = (1/3) * π * 15^2 * dh/dt

Now we know that the rate at which the water is flowing is 2 cubic meters per minute, so we can substitute it for dV/dt

2 = (1/3) * π * 15^2 * dh/dt

Solving for dh/dt

dh/dt = 2/( (1/3) * π * 15^2 )

Therefore, the depth of water in the tank is increasing at the rate of approximately 0.0135 meters per minute when the depth is 8 meters.

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What is the formula of substitution reaction?

Answers

Let's assume that the reaction is taking place between alkyl bromide and the nucleophile is OH- , then the formula for substitution reaction will be , R-Br + OH− => R-OH + Br− .

Nucleophiles are known as organisms that are strongly linked to an area of positive charge in the form of an ion or a molecule. These are believed to be fully charged or to have negative ions on a molecule. Cyanide ions, water, hydroxide ions, and ammonia are common examples of nucleophiles.

Electrophiles are compounds which are involved in the electrophilic substitution process. They are the molecules that transfer a pair of electrons during the creation of a covalent bond.

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Here's a box plot that summarizes the number of pencils in each student's desk.
H+++
0 2 4
+++
6
6
8
Number of pencils
Find the range of the data.
+++H
pencils
10 12 14

Answers

The range of the data on the boxplot is 12

How to determine teh range

From the question, we have the following parameters that can be used in our computation:

The box plot

The range is calcilated as

Range = Maximum - Minimum

From the plot, we have

Maximum = 12

Minimum = 0

Substitute the known values in the above equation, so, we have the following representation

Range = 12 - 0

Evaluate

Range = 12

Hence, the range is 12

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Can I get some help please and thank you!!
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Write a list of steps that are needed to find the measure of ∠B

Answers

Answer is interior angle B = 41

Using Exterior Angle Theorem, the exterior angle = the sum of two non-adjacent interior opposite angles. So

your formula

∠C = ∠A + ∠B

Fill in your known angles, using x for ∠B
113 = 72 + x

Subtract 72 from both sides to solve for x
113 - 72 = 72 - 72 + x

Simplify
41 = x

Iris’s checking account pays simple interest at 5% per year. She has $175 in her account. Write a linear function to model the amount of money in her checking account at any time t

Answers

Her checking account balance at every given time is represented by the linear function 175 + 8.75t

What is a interest?The basic interest formula is as follows: Interest is equal to P, R, and T. P is the principal sum (the beginning balance). Interest rate, R (usually per year, expressed as a decimal). T = Number of intervals of time (generally one-year time periods).An interest is just the additional sum borrowed when one borrows money or saves money.

In this situation, the checking account offers simple interest at a rate of 5% annually. Her account has $175 in it.

The amount of money in the account at anytime will be:

= 175 + (PRT/100)

P = principal

R = rate

T = time

= 175 + [(175 × 5 × t)/100]

= 175 + 8.75t

The function is 175 + 8.75t

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4x^2-24=20x Help Solve by factoring show and explain steps please

Answers

15 not too sure sorry if wrong

Mr. Walker used proportions and the following example to teach students how to calculate speeds: An F-15 Eagle travels at a speed of 1,875 miles per hour for 3.5 hours. Which distance solves the proportion he used?

Answers

Answer:

6,562.5 miles

Step-by-step explanation:

The proportion is 1,875 miles/1 hour.

At that speed, the distance can be calculated when the time is known, which is 3.5 hours in this case:

  (1,875 miles/hr)*(3.5 hr) = 6562.5 miles

There are 623 calories in seven ounces of a certain ice cream. How many calories are there in two pounds?
1 pound
=
16 ounces
1 pound=16 ounces
Before you try that problem, answer the question below.
How many ounces will you need to find the number of calories for?

Answers

There are 2,848 calories in two pounds of a certain ice cream.

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

We have to given that;

There are 623 calories in seven ounces of a certain ice cream.

Since, We know that;

⇒ 1 pound = 16 ounces

Hence, We get;

⇒ 2 pounds = 32 ounces

Here, Amount of ice cream in 7 ounces = 623 calories

Hence, Amount of ice cream in 32 ounces = 623 × 32 / 7

                                                                   = 2,848 calories

Thus, Amount of ice cream in 1 pounds = 2,848 calories

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Discuss the difference between r and p.
Choose the correct answers below.
r represents the ____
p represents the ___

Answers

r represents the sample correlation coefficient.

p represents the population correlation coefficient.

A statistical concept known as the correlation coefficient helps in establishing a relationship between expected and actual values gained through statistical experimentation.

The estimated correlation coefficient's value explains how much the expected and actual values match.

The correct answers are

r represents the sample correlation coefficient

The interpretation of sample correlation coefficient (r) depends on how the sample data are collected.

A statistical concept known as the correlation coefficient helps in establishing a relationship between expected and actual values gained through statistical experimentation.

p represents the population correlation coefficient.

With a large simple random sample, the sample correlation coefficient is an unbiased estimate of the population correlation coefficient (p)

A correlation coefficient of 1 is perfect positive correlation

A correlation coefficient of -1 is perfect negative correlation

A correlation coefficient of 0 indicated the variables do not have any direct relationship.

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Discuss the difference between r and p. Choose the correct answers below.

r represents the _____

1. sample correlation coefficient thing

2. critical value for the correlation coefficient.

3. population correlation coefficient.

p represents the _____

1. critical value for the correlation coefficient.

2. population correlation coefficient.

3. sample correlation coefficient.

NASA's InSight is a robotic lander designed to study the deep interior of Mars. The solar panels on InSight are shaped like regular decagons. Find the measure of each interior angle of the solar panels. Then find the measure of each exterior angle.
Interior angle: ?


Exterior angle: ?

Answers

An interior angle of a regular decagon is given by the formula (n-2) * 180 / n, where n is the number of sides. Since a decagon has 10 sides, the measure of each interior angle is (10-2) * 180 / 10 = 160 degrees.

The measure of each exterior angle of a regular polygon is given by the formula 360 / n, where n is the number of sides. So in the case of a decagon, each exterior angle measures 360 / 10 = 36 degrees.

Three vehicles recorded the following information about their trips.

Van:500 miles in 7.5 hours
Truck:300 miles in 5 hours
Car:400 miles in 5.5 hours

Find the unit rate miles/hour for the van.

Answers

The unit rate of miles/hour taken by the van is 66.67 miles/hr.

What is unit rate?A unit rate is a price for one unit of something. This is written as a ratio with a denominator of one. A unit rate compares one amount to one unit of another amount. Unit rates include miles per hour, cost per item, and calories per serving.

Here given that,

The records of the trip of three vehicles are:

Van:500 miles in 7.5 hours

Truck:300 miles in 5 hours

Car:400 miles in 5.5 hours

We have to find unit rate miles/hour of the van.

So ,

Van covers 500 miles in 7.5hrs.

To find the unit rate,

Unit rate = total distance covered / total time taken

By substituting the values,

unit rate = 500/7.5

              = 66.67 miles/hr

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Solve: 2.5x-3=18
be sure to show your work​

Answers

2.5x-3=18
+3 +3
2.5x=21
Divide each side by 2.5
X=8.4

Owen is going to invest in an account paying an interest rate of 5.7% compounded continuously. How much would Owen need to invest, to the nearest hundred dollars, for the value of the account to reach $122,000 in 14 years?

Answers

Answer:

Hence, your answer will be:

P  ≈  $54900

Step-by-step explanation:

Owen is going to invest in an account paying an interest rate of 5.7% compounded continuously. How much would Owen need to invest, to the nearest hundred dollars, for the value of the account to reach $122,000 in 14 years?

Compounded Continuously:

A  =  Pe^rt

Given Values:

A = 122000     t = 14    r = 0.057

Plug In:

122000 = Pe^0.057(14)

Plug In:

122000 = Pe^0.798

Evaluate In Calculator Using e Button:

122000 = P(2.221094295)

Divide By: 2.221094295

122000 / 2.221094295  =  P(2.221094295) / 2.221094295  

Use Calculator:

54927.87959894 = P

Round to The Nearest Hundred Dollars:

P  ≈  $54900

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