independent vairable can change what?

Answers

Answer 1

An independent variable is a variable that can be changed or manipulated in a scientific experiment.

What is independent variables?

Independent variables are variables in an experiment or research study that are independent of other variables, meaning they are unaffected by the other variables in the experiment. Independent variables are often manipulated by the researcher and are used to observe the effect on a dependent variable. Examples of independent variables include the type of treatment, the level of education, the amount of money offered, and the type of incentive.

It is used to determine the effect that the change has on the dependent variable, which is the variable being tested and measured in the experiment. By changing the independent variable, researchers can observe how the change affects the dependent variable. Examples of independent variables include the amount of light, temperature, time, type of material, and other factors that could influence the outcome of the experiment.

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Related Questions

Determine which integer in the solution set will make the equation true. 2p + 11 = 19 S: {−1, 1, 3, 4}

Answers

Answer:

4

Step-by-step explanation:

2x4=8, 8+11=19

What is 20oz to lbs ?

Answers

From the given information, by doing unit conversion 20 ounces is equal to approximately 1.25 pounds.

Unit conversion is the process of converting a given quantity from one unit of measurement to another. It involves using conversion factors or conversion equations to change the numerical value of the quantity while keeping the physical quantity constant. Common units of measurement include length, mass, volume, time, temperature, and many others.

To convert ounces to pounds, you can use the following conversion formula:

1 lb = 16 oz

So, to convert 20 ounces to pounds, you can divide 20 by 16:

20 oz ÷ 16 oz/lb = 1.25 lb (rounded to two decimal places)

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e by 1
3. Mr. Bauer placed the letters in the word
BASKETBALL into a bag. What is the
probability of choosing the letter B, not
replacing it, and then choosing a vowel?

Answers

Answer:

1/15 chance

Step-by-step explanation:

BASKETBALL = 10 letters

taking out a B = 2/10 or 1/5

Then picking a vowel = 3/9 or 1/3

1/5 x 1/3 = 1/15 chance

Are there any online Line Integral Calculators?

Answers

Calculating antiderivatives, definite line integrals, double and triple integrals, and improper integrals is made easy using Wolfram | Alpha.

Wolfram| | Alpha does integral computations differently than people. It uses the Integrate function in Mathematica, which is the result of much mathematical and computational study. Integrate does integrals differently than individuals do. Instead, it makes use of robust, broad algorithms, which frequently need quite complex arithmetic. One includes determining an integral's general form, differentiating this form, and then resolving equations to match ambiguous symbolic parameters. The equations produced in this technique can be quite complicated, even for relatively basic integrands, and are best solved using Mathematica's robust algebraic computation capabilities. Converting integrals to generalized hypergeometric functions and then using collections of relations about these extremely complex mathematical functions is another method Mathematica utilizes to calculate integrals.

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The length of the sides of a triangle is 15cm, ycm and (y-2)cm. If the area is less than 80cm2(square).Find the possible values of y​

Answers

Answer:

We can use Heron's Formula to calculate the area of a triangle given its three side lengths. The formula is:

A = √(s*(s-a)*(s-b)*(s-c)),

where s = (a + b + c)/2, a, b and c are the three sides of the triangle.

In this case, a = 15, b = y and c = (y-2). Therefore, we can plug these numbers in to get:

80 > √[(y + 7.5) * (y - 7.5) * (y - 2) * (y - 15)]

We can simplify this equation to get:

y^2 - 5y - 80 > 0

This equation can be solved using the quadratic formula, where the solution for y is:

y < 14.09 or y > 10.91

Therefore, the possible values for y are any number between 10.91 and 14.09.

ERROR ANALYSIS Describe and correct the error in finding the difference.
X
(x²+x) - (2x²-3x)
= (x²+x) + (-2²-3r)
= (x^² - 2x²) + (x²-3x)
=-2²-2x

Answers

The error is in the second part of the solution.

What is an expression?

The definition of an expression in math is a statement composed of terms and operations. The terms may be constant (numbers), or variables with coefficients. The operations may be addition, subtraction, multiplication, or division.

Given that the difference of two expressions, (x²+x) - (2x²-3x), we need to find the error in the solution given,

= (x²+x) - (2x²-3x)

= (x²+x) + (-2²-3x) [Error here]

= (x² - 2x²) + (x²-3x)

= -2²-2x

The error is in the second step,

(x²+x) + (-2²-3x)

When we multiply - sigh with a - sign, we will get a positive sign,

So, the correct step is =

(x²+x) + (-2²+3x)

The correct solution is =

= (x²+x) - (2x²-3x)

= x²+x-2x²+3x

= -2x²+4x

= 2x(2-x)

Hence, the error is in the second part of the solution.

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please help me on this

Answers

Answer:1/12

Step-by-step explanation:

Answer: 1/12

just a find a common denominator, and subtract, hope this helped =)

How do I convert a string to an int in Matlab?.

Answers

In MATLAB, you can convert a string to an integer using the str2double() or str2num() function. Both functions convert a string to a double-precision floating-point number, but str2num() also supports the conversion of strings to other numeric data types.

Here's an example of how to convert a string to an integer using str2double():

str = '123';  % string to convert to integer

num = str2double(str);  % convert the string to a double-precision number

int = int32(num);  % convert the double-precision number to a 32-bit integer

In this example, the str variable contains the string '123', which we want to convert to an integer. We first use the str2double() function to convert the string to a double-precision number, which we then convert to a 32-bit integer using the int32() function.

Alternatively, you can use the str2num() function to convert the string directly to an integer:

str = '123';  % string to convert to integer

int = int32(str2num(str));  % convert the string to a 32-bit integer

In this example, we use the str2num() function to convert the string directly to a 32-bit integer, and then assign the result to the int variable.

It is important to note that if the string cannot be converted to a number, both functions will return NaN (Not a Number). Additionally, if the string represents a number that is too large to be represented by an integer, the result will be rounded or truncated.

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A company is designing a new cylindrical package. The volume of the package is 87.92 in.3. The radius is 2 inches. Use the formula V = Bh and 3.14 to approximate π
to answer the questions.

Part A

To the nearest inch, how many inches is the height of the cylindrical package?


Part B

The company decides to keep the radius the same and double the height. Rounded to the nearest hundredth, how many cubic inches is the new volume of the package?

Answers

The height of the cylinder is 7 inches and the the new volume of the package is 175.84 cubic inches

What is the height of the cylindrical package

1. The formula for the volume of a cylinder is V = Bh, where B is the base area and h is the height. The base of the cylinder is a circle, and the formula for the area of a circle is A = πr^2.

Substituting the given values into the formula for the volume of a cylinder, we get:

87.92 = πr^2h

87.92 = 3.14(2^2)h

87.92 = 12.56h

h = 87.92/12.56

h ≈ 7

Rounding to the nearest inch, the height of the cylindrical package is 7 inches.

Part B:

If the company doubles the height while keeping the radius the same, the new height will be 2h. Therefore, the new volume will be:

V = πr^2(2h) = 2πr^2h

Substituting the given values into this formula, we get:

V = 2(3.14)(2^2)(2h)

V = 25.12h

To find the new volume, we need to substitute the value of h from Part A into this formula:

V = 25.12(7)

V ≈ 175.84

Rounding to the nearest hundredth, the new volume of the package is 175.84 cubic inches.

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The variables x and y vary inversely. Use the given values to write an equation relating x
and y. Then find y when x = 4.
1. x = 5, y = 2

Answers

The relation 'x' and 'y' vary inversely, when x = 4, y = 5/2.

What are ratio and proportion?

In its most basic form, a ratio is a comparison between two comparable quantities.

There are two types of proportions One is the direct proportion, whereby increasing one number by a constant k also increases the other quantity by the same constant k, and vice versa.

If one quantity is increased by a constant k, the other will decrease by the same constant k in the case of inverse proportion, and vice versa.

Given, The variables x and y vary inversely.

Let, y ∝ 1/x.

y = k/x.

2 = k/5.

k = 10.

Now, x = 4.

y = k/x.

y = 10/4.

y = 5/2.

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What is 128 lbs to kg ?

Answers

58.0598

take 128/2.205 = 58.0598

128 pounds is equal to 58.059 kilograms.

To convert pounds (lbs) to kilograms (kg), you can use the conversion factor that 1 pound is equal to 0.45359237 kilograms.

To convert 128 pounds to kilograms, you can multiply 128 by the conversion factor:

= 128 lbs x 0.45359237 kg/lb

≈ 58.059 kilograms

Therefore, 128 pounds is equal to 58.059 kilograms.

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PLEASE ANSWER TOADAY !!!!!!!!!!!!!!!!!

Answers

Answer:

most likely next spring

Step-by-step explanation:

Step-by-step explanation:

At a high school, the probability that a student is a senior is 0.25. The
probability that a student plays a sport is 0.20. The probability that a student
is a senior and plays a sport is 0.08.
What is the probability A that a randomly selected student plays a sport, given
that the student is a senior?
• A. 0.32
• B. 0.08
• C. 0.25
• D. 0.17

Answers

The probability a that a randomly selected student plays a sport, given that the student is a senior is 0.32

How to determine the probability

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

The probability that a student is a senior is 0.25. The probability that a student plays a sport is 0.20. The probability that a student is a senior and plays a sport is 0.08.

Using the above as a guide, we have the following:

P(Sport Given Senior) = 0.08/0.25

Evaluate

P(Sport Given Senior) = 0.32

Hence, the probability is 0.32

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What is 0900 military time?

Answers

0900 military time is 9:00 AM in the 24-hour time format used by the military, also known as the 24-hour clock.

The 24-hour clock is a timekeeping system that uses a continuous count of 24 hours, instead of two sets of 12 hours for AM and PM. In this system, each hour of the day is numbered from 0 to 23, and is referred to as "military time" or "24-hour time". So, 0900 military time is equivalent to 9:00 AM, with the "0" indicating the first hour of the day. This system is commonly used in the military, as well as in other fields where precise and standardized timekeeping is important, such as aviation and public transportation.

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An ore car of mass 4,800 kg rolls downhill on tracks from a mine. At the end of the tracks, 13. 9 m lower in elevation, is a spring with k = 410,000 n/m. How much is the spring compressed in stopping the ore car? ignore friction.

Answers

The spring compressed in stopping the ore car is  4.4719 m.

For answer this we will apply the rule of the conservation of energy,

The conservation of energy principle states that in a closed system, the energy of interacting objects or particles remains constant. Kinetic energy, sometimes known as the energy of motion, was the first type of energy to be identified. The total of the kinetic energy of the particles before collision and the sum of the kinetic energy of the particles after collision are identical in some particle collisions, known as elastic collisions.

where:

[tex]E_i=E_f[/tex]

First, we will call:

[tex]E_i[/tex]:the automobile is parked

[tex]E_f[/tex]:when the spring is shortened

so:

[tex]E_i=E_f[/tex]

[tex]mgh=\frac{1}{2}kx^2[/tex]

where M is the vehicle's mass, g is gravity, h is height, K is the spring's constant, and X is the compressed spring used to halt the ore car. By substituting values, we obtain:

4800×9.8×13.8=[tex]\frac{1}{2}\times 410000\times x^2[/tex]

calculating x:

x = 4.4719 m

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CAMBRILEARN
-0-7
b=-11
CAMBRILEARN
•-6√301
CAMBRILEARN
Бу+8
866.150
21:22
A
CAMBRILEARN
1.316
236
11346
·cm
CAMBRILEARN
and
10. Determine the sizes of angles a, b and c in the diagram, with reasons.
Remember to give your answer in degrees.
a =
32°
850
(Reason)
b
NOT TO
SCALE
E
[3]

Answers

Solution in da attachment!! :)

mark bike shop rents bikes for 8+5 per hour. jermaine paid $33 to rent a bike. how many hours did he rent the bike for

Answers

Answer:

He rented the bike for 5 hours.

Step-by-step explanation:

Fixed rate for renting a bike is $8 and rate per hour for renting is $5.

Amount paid by Jermaine is $33.

To find the hourly rent amount that he paid, subtract the fixed rate ($8) from total amount $33.

Rent amount for the bike = 33 - 8

                                          = $ 25

Number of hours rented = 25 ÷ 5

                                        = 5 hours

Part C: Charlie designs a square garden. Each side length is 3x + 5.
The perimeter of Charlie's garden is how much larger than the perimeter of Shawn's
garden?

Answers

Answer:

To answer this question, we first need to determine the perimeter of Shawn's garden. If we let x represent the side length of Shawn's garden, then the perimeter of Shawn's garden would be 4x.

Now, the perimeter of Charlie's garden is 12x + 20, which is 8x + 20 larger than the perimeter of Shawn's garden (4x). Therefore, the perimeter of Charlie's garden is 8x + 20 larger than the perimeter of Shawn's garden.

A bike shop in Belleville bought a mountain bike for $723 and marked it up 50% from the original cost. Later on, Andy purchased the mountain bike and paid Belleville sales tax of 14%. How much, including tax, did he pay for the mountain bike? You must include a $ sign and you must round to the nearest cent

Answers

The tax money given by Andy is equivalent to $151.83.

What is tax?

Tax is a type of financial charge imposed by governmental organization on the individual to fund government spending and various public expenditures.

Given is that a bike shop in Belleville bought a mountain bike for $723 and marked it up 50% from the original cost.

Total cost of bike after marking it up -

{x} = $723 + ${50% of 723}

{x} = $723 + ${50/100 x 723)

{x} = $723 + $361.5

{x} = $1084.5

Money given by Andy as tax -

{t} = 14% of 1084.5

{t} = 14/100 x 1084.5

{t} = $151.83

Therefore, the tax money given by Andy is equivalent to $151.83.

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2. The mean age of a family of five is 22 years. The median is 13, the mode is 42, and the
range is 39 years. Find the ages of the five family members.

Answers

The ages of the five family members as required are; 3, 10, 13, 42 and 42.

What are the ages of the five family members?

As evident, in the task content, let a, b , c , d , e represents the ages of the family members in ascending order.

Since the median of the ages is; 13, it follows that the the third term, c = 13.

Also, since the mode is 42, it follows that; d = e = 42.

Also, since the range of the ages is 39, it follows that; 42 - a = 39 and consequently a = 3.

Finally, since the mean age is 22; it follows from the mean formula that;

22 = ( 3 + b + 13 + 42 + 42 ) / 5

110 = b + 100

b = 10.

Ultimately, the ages of the five family members as required are; 3, 10, 13, 42 and 42.

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Lianisse recorded the number of text messages she sent each day over a period of time. She created the box plot shown to display her data.

Finish completing the five-number summary of Lianisse’s data.
Minimum: 1

First Quartile: _____
Median: _____
Third Quartile: ______
Maximum: ______

Answers

The five number summary is 77.5.

First Quartile: 7.5

Median: 15.5

Third Quartile: 23.5

Maximum: 30

completing the five-number summary of Lianisse’s data:

1, 2, 3, 4, 5, 6, 7, 8,9,10,11, 12, 13,14, 15, 16,17, 18, 19, 20 21, 22, 23, 24, 25, 26, 27, 28, 29, 30.

Minimum = 1

First Quartile = 7 + 8

                           2

                   = 15/2

                    = 7.5

Median = 15+ 16

                    2    

                =31/2

                =15.5

Third Quartile = 15 + 16

                              2

                        =  31/2

                         =   15.5

Maximum = 30

five - number summary = Minimum number +  Lower quartile (Q₁)  + median (Q₂) + Upper quartile  (Q₃) + maximum number

five - number summary = 1 + 7.5 + 15.5 + 23.5 + 30 = 77.5

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Solve the right triangle by completing the table below

Answers

The complete table is,

⇒ B = 41°

⇒ a = 9.525

⇒ b = 8.25

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

The triangle is shown in figure.

Now, We have;

Two angles of triangle are,

⇒ A = 49°

⇒ C = 90°

Hence, We can formulate;

⇒ B = 180 - (49 + 90)

⇒ B = 180 - 139

⇒ B = 41°

And, By using Sine rule as;

⇒ sin A / a = sin B / b = sin C / c

Takin two identity as;

⇒ sin A / a = sin C / c

⇒ sin 49° / a = sin 90° / 12.7

⇒ 0.75 / a = 1/12.7

⇒ 0.75 × 12.7 = a

⇒ a = 9.525

⇒ sin B / b = sin C / c

⇒ sin 41° / b = sin 90 / 12.7

⇒ 0.65/b = 1/12.7

⇒ 0.65 × 12.7 = b

⇒ b = 8.25

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WILL MARK BRAINLIEST.

Two angles of a triangle measure 41° and 44°.
What is the measure of the third angle?
OA) 75°
OB) 85°
OC) 95°
OD) 105°

Answers

Answer:

the answer is c 95

Step-by-step explanation:

180-41-44=95

a  triangle has 180 degrees

Answer: I think A. 75

Step-by-step explanation: why not pick A……

Hope this helps^^

Chang 0.7 to fraction with workings

Answers

Answer:

7/10

Step-by-step explanation:

all number converted to decimals are X/1. X is any number.

0.7 is equal to 0.7/1

now fractions cannot contain a decimal number so we can times is by 10 to get 7/10.

Answer: 0.7, I think you multiply, algebraic answer ig

Step-by-step explanation:

Find the eigenvalues and eigenvectors of matrix A = 5 4
1 2

Answers

The matrix A  eigenvalues and eigenvectors are as follows:

Eigenvalue λ1 = 1 with eigenvector v1 = [1, -1]

Eigenvalue λ2 = 6 with eigenvector v2 = [4, 1]

Using the equation  (A - λI)v = 0, where is an eigenvalue of A, I am the 2x2 identity matrix, and v is the associated eigenvector, we can determine the eigenvalues and eigenvectors of the matrix A = [[5, 4], [1, 2]].

First, we calculate the (A - λI) matrix's determinant:

det(A - λI) = |5-λ 4| = (5-λ)(2-λ) - 4 = λ^2 - 7λ + 6

|1 2-λ|

We obtain the characteristic equation by setting the determinant to zero:

λ^2 - 7λ + 6 = 0

We obtain two eigenvalues after solving for  λ :

λ = 1 and λ = 6

Next, For each eigenvalue, we identify the appropriate eigenvectors:

For λ = 1, We solve the system of linear equations represented by the equation(A - λI)v = 0:

4v1 + 4v2 = 0

v1 + v2 = 0

The second equation is evidently as straightforward as v1 = -v2. When we enter this into the initial equation, we get:

4v2 - 4v2 = 0

Thus, the eigenvector for λ = 1 is v = [1, -1].

For λ = 6, We solve the system of linear equations represented by the equation(A - λI)v = 0:

-v1 + 4v2 = 0

-v1 + 4v2 = 0

v1 - 4v2 = 0

It is evident that the first equation is just v1 = 4v2. When we enter this into the second equation, we get:

4v2 - 4v2 = 0

Thus, the eigenvector for λ = 6 is v = [4, 1].

Therefore, The matrix A  eigenvalues and eigenvectors are as follows:

Eigenvalue λ1 = 1 with eigenvector v1 = [1, -1]

Eigenvalue λ2 = 6 with eigenvector v2 = [4, 1]

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The function f(2)=19400(0.40)* represents the values of a certain type of car x years after it is
purchased. Xavier states that the decay rate of the value of the car is 40%. Which accurately
describes Xavier's statement?

A) Xavier correctly determined the decay rate of the value of the car.

B)Xavier should have subtracted 0.40 from 1 to determine a decay rate of 60%.

C)Xavier should have added 0.40 to 1 to determine a decay rate of 1.40%.

D) Xavier should have divided 1 by 0.40 to determine a decay rate of 1.60%.

Answers

Since Xavier states that the decay rate of the value of the car is 40%, an answer option that accurately describes Xavier's statement is: A) Xavier correctly determined the decay rate of the value of the car.

What is an exponential function?

In Mathematics, an exponential function can be modeled by using this mathematical expression:

f(x) = a(b)^x

Where:

a represents the base value or y-intercept.x represents time.b represents the rate of change (decay rate).

In this scenario, we can logically deduce that values of a certain type of car x years after it is purchased can be modeled by the following exponential function:

f(2) = 19,400(0.40)^2

By comparison, we have:

Decay rate (r) = 0.40, which simply means Xavier correctly determined it.

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1. If the given angle is in standard position, find two positive and two negative coterminal angles.

2. a) Find the angle supplementary theta = 15.90

b) Convert the angle to degrees, minutes, and seconds.

3. a) Convert la to a radian.
b) Convert 1b to a degree

PLEASE HELP THANK YOU

Answers

Answer: its A

Step-by-step explanation: you welcome

What is the probability of obtaining 3 heads in four flips of a fair coin?

Answers

The probability of obtaining 3 heads in four flips of a fair coin is 1/4.

The probability of obtaining 3 heads in four flips of a fair coin can be calculated using the binomial probability formula. The formula is:

[tex]P(X = k) = (n choose k) * p^k * (1 - p)^{(n - k)}[/tex]

where P(X = k) is the probability of obtaining k successes (in this case, 3 heads), and n is the total number of trials (in this case, 4 flips).

p is the probability of success on a single trial (in this case, 0.5 since the coin is fair), and (n choose k) is the binomial coefficient, which represents the number of ways to choose k successes from n trials.

Plugging in the values, we get:

[tex]P(X = 3) = (4 choose 3) * 0.5^3 * (1 - 0.5)^{(4 - 3)}[/tex]

= 4 * 0.125 * 0.5

= 0.25

Therefore, the probability of obtaining 3 heads in four flips of a fair coin is 1/4 or 0.25

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HELPPPPPPP PLEASEEEEEEEEEE
Algebra

Answers

Answer:

(-1, -5)

Equation form:

x=-1, y=-5

Step-by-step explanation:

Basically, all you have to do is solve for the first variable in one of the equations, then substitute the result into the other one. It's as simple as that.

Hope this helps

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

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Draw a triangle with vertices A(0, 4), B(2, -2), and C(-2, -2). Apply a dilation centered at the origin with scale factor to this triangle and draw the resulting triangle,A'B'C'. In complete sentences, describe the following:a,The relationship between corresponding sides in terms of their lengths.b.The relationship between corresponding sides in terms of their orientations.c.The relationship between corresponding angles in terms of their measures. Fill The Blank! a short, distinctive musical figure that can stand by itself, and often unifies entire compositions is a ____ . Obtain an initial basic feasible solution to the following transportation problemusing Vogels approximation method.D1D2D3D4A513334B335415C644312D4-142192125171780 What is a good topic sentence? what is the adip/o medical term What is the meaning of forum shopping? 1. Typically, the lowest number your credit score can be is: A 1600 kg (empty) dump truck rolls with a speed of 2.5 m/s under a loadingbin and a mass of 3500 kg is deposited in the truck. Assuming the truck doesnot stop to receive its load, what is the speed of the truck immediately afterloading? Jose's parabola opens downward How many grams of potassium sulfate(K2SO4) are dissolved in 700 mL of a 0.5M? What threshold is the minimum level of a stimulus necessary for you to detect its presence at least half of the time? if the price of good a increases and, as a result, the demand for good b decreases, then goods a and b are considered to be ______. Identifying, assessing, and managing the risks and day-to-day changes that occur during a project best defines which of the following project manager activities?A) Conflict managementB) Risk and change managementC) Team managementD) Customer relationsE) Technical problem solving How to use physics right hand rules? Where is the buried blue coin in retail row? What is the difference between Ned's view of speaking up in class and the teachers' view of the same issue? If 0 360, then find angle(s) .cos= -1/2 A fishing boat in the ocean is moving at a speed of 20.0 km/h and heading in a direction of 40.0 east of north. A lighthouse spots the fishing boat at a distance of 24.0 km from the lighthouse and in a direction of 15.0 east of north. At the moment the fishing boat is spotted, a speedboat launches from a dock adjacent to the lighthouse. The speedboat travels at a speed of 44.0 km/h and heads in a straight line such that it will intercept the fishing boat.(a)How much time, in minutes, does the speedboat take to travel from the dock to the point where it intercepts the fishing boat?(b)In what direction does the speedboat travel? Express the direction as a compass bearing with respect to due north. east of north What did you include in your response? Check all that apply. When the third side of the triangle is too short to intersect the other side, no triangles can be formed. When the third side is just long enough to meet the other side at one point, one triangle is formed. When the third side is long enough to intersect the other side at two points, two triangles are formed. A circle that has its center at the origin passing through point where coordinates are (-1, -1)The area of the circle is?