Last week the value of an investment changed at a rate of -$3.15 each day. After How many days was the total change in value -$12.60?

(-4,0)

-4 is in the y axis and 0 is in the x axis

Answer:

C

Step-by-step explanation:

It can't be B or D, because there is only a difference in the X axis (Meaning it goes either left or right)

It can't be A because 2 is less than 11, so (2, -1) would be left 9 units in relation to (11, -1)

There are 1,680 different ways to select the officers for your club.

To determine the number of ways you can select officers for your club, you'll need to use the concept of permutations.

In this case, there are 8 members and you need to choose 4 positions (president, vice president, secretary, and treasurer).

The number of ways to arrange 8 items into 4 positions is given by the formula:

P(n, r) = n! / (n-r)!

where P(n, r) represents the number of permutations, n is the total number of items, r is the number of positions, and ! denotes a factorial.

For your situation:

P(8, 4) = 8! / (8-4)! = 8! / 4! = (8 × 7 × 6 × 5 × 4 × 3 × 2 × 1) / (4 × 3 × 2 × 1) = (8 × 7 × 6 × 5) = 1,680

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Data integration combines data collected from various platforms to increase its value for your company. It enables your staff to collaborate more effectively and provide more for your clients.So IT is important to integrate information.

The combining of data from diverse sources with various conceptual, contextual, and typographic representations is known as information integration. It is utilised for data aggregation and mining from unstructured or partially organised sources. You may connect all of your data, people, and processes in a single solution by using an integrated solution. Today's top HSEQ management teams regard this strategy as best practise. The justification for this is straightforward: it improves reporting, efficiency, uniformity, speed, and ease of use. An integrated report's main goal is to describe to financial capital providers how a company builds, protects, or loses value over time. As a result, it includes pertinent information, both financial and otherwise.

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The correct system of equations that describes the situation is: 0.12x + 0.38y = 0.25(100) x + y = 100. Riley to make a 25% saline solution using the available 12% and 38% saline mixtures.

The problem states that Riley wants to make 100 ml of a 25% saline solution using 12% and 38% saline mixtures. To solve this problem, we need to set up a system of equations that represents the given conditions. Let x represent the amount of the 12% solution used, and y represent the amount of the 38% solution used.

The first equation in the system represents the concentration of saline in the mixture. We multiply the concentration of each solution (0.12 and 0.38) by the amount used (x and y, respectively) and add them together. The result should be equal to 25% of the total volume (0.25(100)) to obtain a 25% saline solution.

The second equation in the system represents the total volume of the mixture, which is 100 ml in this case. We add the amounts used from both solutions (x and y) to get the total volume.

By solving this system of equations, we can find the values of x and y that satisfy the given conditions and allow Riley to make a 25% saline solution using the available 12% and 38% saline mixtures.

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False, r2adj is the adjusted coefficient of determination that can exceed r2 if there are several weak predictors.

R2adj is the adjusted coefficient of determination and takes into account the number of predictors in the model. It penalizes the addition of insignificant predictors that do not improve the model fit.

R2, on the other hand, is the coefficient of determination and measures the proportion of variability in the dependent variable that is explained by the independent variables in the model.

It is possible for R2 to increase when weak predictors are added, but this increase is not necessarily mean that the predictors do not have a significant impact on the outcome.

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The question is -

R2adj can exceed R2 if there are several weak predictors. true or false?

Answer:

B

Step-by-step explanation:

The first thing we need to do here is to find the probability value that corresponds to z-score of 2.25

While this is traceable using the normal distribution table, we can easily find it using the Normal distribution function in excel

By using this, we get the probability P value of the z score 2.25 to be 0.012224

Now, before we can accept or reject H0, we need to compare the value of P to the significance level alpha

If P ≤ alpha, we reject the null hypothesis H0

At alpha = 0.05, p value is lesser , we reject the null hypothesis.

At alpha P 0.01, p value is greater so we accept null hypothesis

This shows that the finding is significant at alpha = 0.05 (since we rejected null hypothesis) but not at alpha = 0.01(since we accepted null hypothesis)

the The finding should be option b. The finding is significant at α = 0.05 but not at α = 0.01.

Since the z test statistic is found to be 2.25.

Now the P value of the z score 2.25 to be 0.012224

In the case when P ≤ alpha, we reject the null hypothesis H0

Now

At alpha = 0.05, the p-value is lesser, we reject the null hypothesis.

At alpha P 0.01, p value is more so we accept null hypothesis

Therefore, the option b is correct.

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1 )

\(volume = 20 \times 5 \times 8\)

\(volume = 800 \: \: {m}^{3} \)

\(surface \: \: area \: = 4 \times 20 \times 8\)

\(surface \: area \: \: = 640 \: \: {m}^{2} \)

_____________________________________________

2 )

\(v = 15 \times 3 \times 4\)

\(v = 180 \: \: {m}^{3} \)

\(s \: a \: = 4 \times 15 \times 4\)

\(s \: a \: = 240 \: \: {m}^{2} \)

_____________________________________________

3 )

\(v = ( \frac{1}{2} \times 4 \times 5) \times 10 \\ \)

\(v = 100 \: \: {m}^{3} \)

\(s \: \: a = (10 \times 5) + (10 \times 4) + (10 \times \sqrt{41} ) \\ \)

\(s \: a \: \: = 50 + 40 + 10 \sqrt{41} \)

\(s \: a \: \: = 90 + 10 \sqrt{41} \)

_____________________________________________

4 )

\(v = ( \frac{1}{2} \times 3 \times 4) \times 7 \\ \)

\(v = 42 \: \: \: {m}^{3} \)

\(s \: a \: \: = (3 \times 7) + (4 \times 7) + (5 \times 7)\)

\(s \: a \: \: = 21 + 28 + 35\)

\(s \: a \: \: = 84 \: \: \: {m}^{2} \)

Considering the graph attached. The correct statement about the function is C The y intercept is at (0, 71), and 71 is the starting temperature

Information gotten from the question include

The graph of a linear function showing the temperature variation in degrees Fahrenheit of a given day

A linear function consists of functions where the variables has exponents of 1. The graph of linear functions is a straight line graph and the relationship is expressed in the form.

y = mx + c

Definition of variables to suit the the temperature variation in degrees Fahrenheit of a given day

y = temperature in degrees Fahrenheit

m = slope of the graph

x = time in hours

c = The temperature at x = 0 which is the starting temperature

The question is asking about the y intercept and this the value of y at

x = 0

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Answer:

∠3 = 140°

Step-by-step explanation:

∠4 = 40°

∠4 = ∠1 (vertical angles)

∠1 = ∠2 (alternate angles)

∠2 = 40°

So,

∠2+∠3 = 180 [Angles on a straight line add up to 180°]

40 + ∠3 = 180

∠3 = 180-40

∠3 = 140°

Answer:

Angle 3 = 140°

Step-by-step explanation:

Angle 4 is equal to 40° and on a flat surface of 180°, that is, the first horizontal line, angle A is equal to 140° because 180° - 40° = 140°. Angle A is congruent to angle 3, therefore, angle 3 is also 140°.

it will take approximately 29.823 seconds to produce 1.0 g of silver metal by the electrolysis of an AgNO3 solution using a current of 30 amps.

To determine how many seconds will be required to produce 1.0 g of silver metal by the electrolysis of an AgNO3 solution using a current of 30 amps, we need to follow these steps:

1. Calculate the number of moles of silver (Ag) in 1.0 g:
1.0 g / 107.87 g/mol (molar mass of Ag) = 0.00927 mol of Ag

2. Use Faraday's law of electrolysis to find the total charge needed:
Total charge (Q) = n × F
where n is the number of moles of Ag (0.00927 mol) and F is the Faraday constant (96,485 C/mol).
Q = 0.00927 mol × 96,485 C/mol = 894.7 C (Coulombs)

3. Determine the time (t) required to pass the total charge at a current of 30 amps:
t = Q / I
where Q is the total charge (894.7 C) and I is the current (30 A).
t = 894.7 C / 30 A = 29.823 seconds

So, it will take approximately 29.823 seconds to produce 1.0 g of silver metal by the electrolysis of an AgNO3 solution using a current of 30 amps.

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Answer: The current supply of dog food will last for 3 days.

Step-by-step explanation:

We are given that:

Question:

First, you need to create a common denominator for the given amounts.

Values given:

(put 2 1/2 into a improper fraction, so its easier to work with)

The common denominator between 5/6 and 5/2 is 6.

Now convert the fractions into its common denominator.

Since 5/6 already has the denominator of 6, you can leave it as it is.

For 5/2 you convert it like this: 5/2 * 3/3 = 15/6

Next lets go back to the question,

The question is asking for how many days will the dog food last.

You can find the amount of days it will last by dividing the current amount (total amount of dog food which is 15/6) by the number of food the dog can eat per day (5/6)

That is the same as multiplying 15/6 by the reciprocal of 5/6 (which is 6/5).

Then simplify

The current supply of dog food will last for 3 days.

Answer:-0.3 -0.4 -0.5

Step-by-step explanation:mark me as brainliest

Answer:

it classified as a

error.

Step-by-step explanation:

Answer:

x = -10/3 is the solution.

The greatest number of flowers Tina can place in each vase is 8.

Given: Total number of roses: 64

Total number of tulips: 72

Each vase hold same number of flowers. To find the greatest number of flowers that can be placed in each vase.

What is highest common factor?

Highest common factor or HCF between two or more numbers is the process of finding the highest number which can divide all the numbers in a given or the highest number by which all the numbers in the given set are divisible.

The highest common factor HCF is also called greatest common divisor or GCD.

Now, let's solve the given question:

Total number of roses = 64

Total number of tulips = 72

Now it is said that each vase should contain the same number of flowers.

So we have to find the highest possible number which can completely divide 64 and 72 with remainder 0. (divisible)

So, to find the greatest possible number than can divide 64 and 72 we need to find the HCF or GCD of 64 and 72.

Therefore, HCF(64, 72) is 8.

The maximum or greatest number of flowers that can be placed in each vase is 8.

Hence the greatest number of flowers Tina can place in each vase is 8.

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Answer:

Area: 7, because there are 7 squares.

Perimeter: 14.

Step-by-step explanation:

The the rectangular prisms have their volumes as:

1). 175 cubic feet

2). 60 cubic metres

3). 140 cubic metres

4). 216 square inches.

volume for a rectangular prism is calculated using:

length × width × height

the rectangular prisms can be divided into bigger and smaller prism and their volumes calculated separately and then added to get the total volume as follows:

1). volume of bigger rectangular prism = 7ft × 7ft × 3ft = 147ft³

volume of smaller rectangular prism = 7ft × 2ft × 2ft = 28ft³

volume of object = 147ft³ + 28ft³ = 175ft³

2). volume of bigger rectangular prism = 6m × 3m × 3m = 54m³

volume of smaller rectangular prism = 3m × 3m × 1m = 6m³

3). volume of bigger rectangular prism = 7m × 6m × 3m = 126m³

volume of smaller rectangular prism = 7m × 2m × 1m = 14m³

volume of object = 126m³ + 14m³ = 140m³

4). volume of bigger rectangular prism = 12in × 4in × 4in = 192in²

volume of smaller rectangular prism = 4in × 3in × 2in = 24in³

volume of object = 192in³ + 24in³ = 216³

Therefore, the rectangular prisms have their volumes as:

1). 175 cubic feet

2). 60 cubic metres

3). 140 cubic metres

4). 216 square inches

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Answer:

x=19/5

Step-by-step explanation:

x*2+8x=38

10x  =38

The coordinate vector [x]B of x relative to the given basis B is [x]B = (1, -2, -3). The coordinate vector [x]B of x relative to the basis B = {b₁, b₂, b₃} is to be found, where b₁ = (1, -1, -4), b₂ = (1, -1, -3), b₃ = (1, -1, -5), and x = (-2, 3, -18).

To find the coordinate vector, we need to express x as a linear combination of the basis vectors. Let's assume [x]B = (a, b, c), where a, b, and c are scalars.

Now, we can write x as x = a * b₁ + b * b₂ + c * b₃.

Substituting the values of x, b₁, b₂, and b₃, we have (-2, 3, -18) = a * (1, -1, -4) + b * (1, -1, -3) + c * (1, -1, -5).

By performing the scalar multiplication and addition, we get the system of equations:

-2 = a + b + c,

3 = -a - b - c,

-18 = -4a - 3b - 5c.

Solving this system of equations, we find a = 1, b = -2, and c = -3.

Therefore, the coordinate vector [x]B of x relative to the given basis B is [x]B = (1, -2, -3).

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Answer:

C

Step-by-step explanation:

x + 2y = 6

isolate x through

x = 6-2y . . . (iii)

Substitute equation (iii) in equation (i)

7x - y = 7

7(6 - 2y) - y = 7

42 - 14y - y = 7

42 - 15y = 7

Collecting Like terms

-15y = 7 - 42

-15y = -35

-15y = -35

-15 -15

y = 7

3

y =

\(2\frac{1}{3} \)

Substitute y in equation (iii)

x = 6 - 2y

x = 6 - 2 × 7

3

x = 6 - 14

3

x =

\(1\frac{2}{3} \)

Answer:

c is the right answer

Step-by-step explanation:

Answer:

<

Step-by-step explanation:

1.24 is less than 1.3 hope this helps

Answer:

1.24 < 1.3

Step by step explanation:

Here, 1.24 is smaller than 1.3

Answer:

x = -5

Step-by-step explanation:

Start by combining terms.

8x-2 = 12x +18

8x -12x = 18+2

-4x = 20

*Divide both sides by -4

x = -5

The probability of a lion living longer than 10.1 will be 0.1585.

The Gaussian Distribution is another name for it. The most significant continuous probability distribution is this one. Because the curve resembles a bell, it is also known as a bell curve.

The lifespans of lions in a particular zoo are normally distributed. The average lion lives 12.5 years; the standard deviation is 2.4 years.

The lifespan of a lion in a particular zoo is normally distributed with average lion lives:

Mean u = 12.5 years

Standard deviation s = 2.4 years

We are to use the empirical rule ( 68-95-99.7% ) to estimate the probability of a lion living between 5.3 and 10.1.

The empirical rule ( 68-95-99.7% ) states:

P ( u - s < X < u + s ) = 68%

P ( u - 2s < X < u + 2s ) = 95%

P ( u - 3s < X < u + 3s ) = 99.7%

The test has the following number of standard deviations (s):

u - s < X < u + s  = 12.5 - 2.4 < X < 12.5 + 2.4  = 10.1 < X < 14.9

u - 2s < X < u + 2s = 12.5 - 4.8 < X < 12.5 + 4.8  = 7.7 < X < 17.3

u - 3s < X < u + 3s = 12.5 - 7.2 < X < 12.5 + 7.2  = 5.3 < X < 19.7

Then the probability is calculated as,

P ( 10.1 < X < 14.9 ) = 0.68

P ( 7.7 < X < 17.3 ) = 0.95

P ( 5.3 < X < 19.7 ) = 0.997

We need P ( X < 10.1 ) and P ( X < 5.3 ):

P ( X < 10.1 ) = [ 1 - P ( 10.1 < X < 14.9 ) ] / 2

P ( X < 10.1 ) = [ 1 - 0.68 ] / 2

P ( X < 10.1 ) = 0.16

P ( X < 5.3 ) = [ 1 - P ( 5.3 < X < 19.7 ) ] / 2

P ( X < 5.3 ) = [ 1 - 0.997 ] / 2

P ( X < 5.3 ) = 0.0015

P ( 5.3 < X < 10.1 ) = P ( X < 10.1 ) - P ( X < 5.3 )

P ( 5.3 < X < 10.1 ) = 0.16 - 0.0015

P ( 5.3 < X < 10.1 ) = 0.1585

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Answer:

Momentum is how much something wants to keep moving in the same direction. p = m v. p = m v. p = 1500 kg × 28 m/s. p = 42 000 kg m/s. The unit for momentum is

Step-by-step explanation:

Answer:

1. \(\bold{S=f(P) = 0.07P}\)

2. x = 16

3. Part 1: P is the independent variable and S is the dependent variable.

Part 2: x is the independent variable and y is the dependent variable.

Step-by-step explanation:

1. To write the function notation for:

Sales tax is 7% of the total price.

Let the total price be \(P\).

And sales tax be \(S\).

As per the given statement:

\(S = 7\% \ of\ P\\\Rightarrow S =\dfrac{7}{100}P\\\Rightarrow S=0.07P\)

Writing it in the function notation:

\(\bold{S=f(P) = 0.07P}\)

2. To find the value of x such that \(f(x) = 14\) and

\(f(x) = \dfrac{1}4x + 10\)

Putting the value of \(f(x) = 14\)

\(14 = \dfrac{1}4x + 10\\\Rightarrow \dfrac{1}4x =14-10\\\Rightarrow \dfrac{1}4x =4\\\Rightarrow x =4\times 4\\\Rightarrow \bold{x =16}\)

3. To find the dependent and independent variable.

Independent variables are those whose value is not dependent on the other variable's values.

Dependent variables are dependent on the value of other variables.

In question 1:

\(\bold{S=f(P) = 0.07P}\)

P is the independent variable.

S is the dependent variable.

In question 2:

If we write it as follows:

\(y=f(x) = \dfrac{1}4x + 10\)

x is the independent variable and y is the dependent variable.

Answer:

172.8 m^2

Step-by-step explanation:

7.2/2 = 3.6

3.6*4.8 = 17.28

17.28*10 = 172.8

Answer:

Step-by-step explanation:

To reflect the quadrilateral over line n, you need to reflect each of the vertices, J, K, L, and M, over the line. then you connect the vertices to end up with the reflected quadrilateral J'K'L'M'.

This is how you reflect each point.

Let's find the reflection of point J. We will call the reflection point J'.

Draw a perpendicular to line n that passes through point J. Start at point J, draw the line toward line n, and go past line n. Then measure the distance from point J to line n along this perpendicular, and mark off the same distance on the other side of line n. That is point J', the reflection of point J.

Do the same with points K, L, and M. For each point, draw a perpendicular to line n that passes through point K, L, M. Then measure the distance from each point to line n. The same distance on the other side of line n is the reflection of the point.

Finally, connect points J', K', L', and M' with segments.

Look at the figure below. Draw a perpendicular line (in red) from point J to line n. Then the same distance that point J is from line n along the perpendicular (distance called x) is the distance point J', the reflection of point J, is on the other side of line n. For point M, use the blue perpendicular. The distance is y on both sides of line n. The purple line and distance z are used for point L. The green line and distance w are used for point K. Once you have the reflections of the points, you connect them. That is shown in brown. The brown quadrilateral J'K'L'M is the reflection of the original quadrilateral JKLM with respect to line n.