Find −1/2(−4/5) . Write your answer as a fraction in simplest form.

The correct answer is [B] You are increasing your liability.

When you buy a pair of shoes for $85, your cash balance decreases by $85, which means that your wealth also decreases by $85. This is represented by [A] and [C].

[D] You are incurring an expense is also true, because you are spending money on the shoes.

[E] You are acquiring (non-cash) asset is also true, because you are obtaining an asset (the shoes) that you can use or sell in the future.

[B] You are increasing your liability is not true, because a liability is a debt or an obligation that you owe to someone else. In this case, you are not taking on any debt or obligation by buying the shoes, so your liability does not increase.

Answer:

32%

Step-by-step explanation:

[tex]\frac{8}{25} \times 100=32\%[/tex]

Answer:

Step-by-step explanation:

32%

Answer:

y= 2x +4 is the equation

The interest earned is $50

Simple interest is a quick and easy method of calculating the interest charge on a loan. Simple interest is determined by multiplying the daily interest rate by the principal by the number of days that elapse between payments. ​Simple Interest=P×r×t

               where:

                     P=Principal

                    r= interest rate per annum

                    t=Number of years

​

Given here, P = $1000 , r = 5%  t=1

thus using the formula we get    SI = 1000×5/100×1

                                                          = $50

Hence, the interest earned is equal to $50

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Answer:

[tex]1.25x + .50y \geqslant 150[/tex]

A mathematical model that represents the statement using a  constant of proportionality is; y = 25(x/y²)

The constant of proportionality is defined as the ratio of two proportional values that is said to be in a constant value.

We are told that P varies directly as x and inversely as the square of y.

Thus, we have;

P ∝ x/y²

We are now told that;

P = 28/3 when x = 84 and y = 15. Thus;

P = k(x/y²)

where k is constant of proportionality

Thus;

28/3 = k(84/15²)

k = (28 * 15²)/(84 * 3)

k = 25

Thus, the mathematical model is concluded as;

y = 25(x/y²)

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Complete question is;

Find a mathematical model representing the statement. (Determine the constant of proportionality.)

P varies directly as x and inversely as the square of y.

P = 28/3 when x = 84 and y = 15.

P=??

For the sample to be 99% confident and sample proportion to not differ more than 5% the sample size is 664  .

The term Sample Size is defined as number of observations that is used for determining estimations of a given population .

it is given that , sample proportion should not differ by 5% ,

that means , the Margin of Error (ME) = 0.05 .

Since , the prior information is unknown

we assume the sample proportion(p) = 0.05  .

and level of significance (α) ⇒ 0.01 ;

By using the z table ,critical value for 99% confidence interval is = 2.576

The sample size(n) can be calculated by the formula ,

n = p(1 - p)[(critical value)/ME]²  ;

substituting the values of p , critical value and ME in the above equation ,

we get ;

n = 0.05×(1 - 0.05)×[2.576/0.05]²

n = 0.25 × 2654.3104

n = 663.5776

n ≈ 664

Therefore , the required sample size is 664 .

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The amount of tax that Eric and Maria will pay on their dividend income is 24% so 24% * $3,000 = $720. This amount will then be added to their taxable income of $88,910, and the resulting amount will be used to calculate the total tax they owe for the year.

The amount of tax that Eric and Maria will pay on their dividend income will depend on their marginal tax rate. In 2021, the federal tax rate is progressive, meaning that the higher their taxable income, the higher their marginal tax rate. For a taxable income between $80,251 and $171,050, the marginal tax rate is 24%. Therefore, the tax that Eric and Maria will pay on their dividend income will be 24% of the amount of dividend income they received. This amount will then be added to their taxable income of $88,910, and the resulting amount will be used to calculate the total tax they owe for the year.

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The z-score corresponding to an observation is -1.02

From the given data μ=335

σ=50

X=284

It is a way to compare the results from a test to a “normal” population.

If X is a random variable from a normal distribution with mean (μ) and standard deviation (σ), its Z-score may be calculated by subtracting mean from X and dividing the whole by standard deviation.

Where, x = test value

μ is mean and

σ is SD (Standard Deviation)

For the average of a sample from a population ‘n’, the mean is μ and the standard deviation is σ.

X=284 now we have to find Z score

so from the formula the Z score corresponding to observation X=284 is we have

Z=X- μ/σ

=[tex]\frac{284-335}{50}[/tex]=-1.02

Therefore, the z-score is -1.02.

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Answer:

b) The stock is 5.5 less than the original value, and the absolute value is 5.5.

Step-by-step explanation:

First of all, let's make our number line. The question says you need it to start at -9, so we can assume that it will go until 10. It also wants us to make half-tick marks. (There is an image attached of the number line.)

It says that -5.5 is labeled, so do that on your number line.

Next, it explains that 0 is the original price. 0 is where the stock is starting at. This does not mean that the value of the stock is 0!!! (It means that NO MATTER what the price of the stock is, that is now considered 0.)  

Now for the multiple choice, here's why all the answers are incorrect/correct.

a) If something is -5.5 less, it's the same as subtracting a negative number- which makes it positive!! SO this would mean that it added value.

b) Correct! Since it value is lower by 5.5, it's 5.5 less than the og value.

c) Since it's -5.5 greater, that's like adding a negative number: it's the same as subtracting. I suppose this is technically correct, but it's weird.

d) This one says's it's 5.5 greater, which is totally wrong. The value is decreasing, not increasing!

All of them say the absolute value is 5.5. This is correct. Absolute value is the distance from 0, and -5.5 is 5.5 units away from 0. (put simply, absolute value is just making the number positive.

hopefully this makes sense and helps you!!

The probability of drawing a red marble from the jar is 5/11 and the probability of drawing a blue marble from the jar is 6/11.

There are 22 marbles in the jar in total, 10 of which are red and 12 of which are blue. To find the probability of drawing a red marble, we can use the formula for probability:

Probability = Number of favorable outcomes / Total number of outcomes

In this case, the number of favorable outcomes is 10 (the number of red marbles), and the total number of outcomes is 22 (the total number of marbles in the jar). Plugging these values into the formula, we get:

Probability of drawing a red marble = 10/22

This fraction can be reduced to 5/11 by dividing both the numerator and denominator by 2. So, the probability of drawing a red marble from the jar is 5/11.

To find the probability of drawing a blue marble, we can use the same formula:

Probability = Number of favorable outcomes / Total number of outcomes

In this case, the number of favorable outcomes is 12 (the number of blue marbles), and the total number of outcomes is 22 (the total number of marbles in the jar). Plugging these values into the formula, we get:

Probability of drawing a blue marble = 12/22

This fraction can also be reduced to 6/11 by dividing both the numerator and denominator by 2. So, the probability of drawing a blue marble from the jar is 6/11.

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To make x the subject of the equation q^2 = x - m^2, we can start by adding m^2 to both sides of the equation:

q^2 + m^2 = x

We can then rearrange the terms to get x on the left side:

x = q^2 + m^2

This is the equation with x as the subject.

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Answer:

answer is 8

Step-by-step explanation:

Answer: [tex]x=8[/tex]

Step-by-step explanation:

[tex]3x+13=37\\\\3x=24\\\\x=8[/tex]

Answer:

358.62

Step-by-step explanation:

Answer:

358.62

Step-by-step explanation:

Answer:

20%

Step-by-step explanation:

[tex]\frac{2}{10}[/tex] x 100 = [tex]\frac{200}{10}[/tex] = 20%    

Answer:

  30 feet

Step-by-step explanation:

You want to know the distance between the first and last of 10 stakes evenly spaced, such that the first and fourth are 10 feet apart.

Between stakes 1 and 4 are 3 gaps. Between stakes 1 and 10 are 9 gaps, which is 3 times as many.

The distance from the 1st to 10th stakes will be 3 times the 10 ft distance from the 1st to 4th stakes.

  3 · 10 ft = 30 ft

The first and tenth stakes are 30 feet apart.

The amount produced is the independent variable and the number of truckers is the dependent variable. So, option 2 is the correct answer.

Independent variables are those variables that do not require any other quantity/variable in order to determine their value. On the other hand, dependent variables do require another such variable.

In the given problem, the amount of product does not depend on any other factor. This means it is independent of any other variable. Meanwhile, the number of truckers depends on the amount produced. This makes it the dependent variable. So, option 2 is the answer here.

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Answer:

The slope of a line is a measure of its steepness or incline. It is calculated by dividing the difference in the y-coordinates of two points on the line by the difference in their x-coordinates. In the case of the line (5,-9) and (5,2), the difference in the y-coordinates is -9 - 2 = -11 and the difference in the x-coordinates is 5 - 5 = 0. Since division by 0 is undefined, the slope of the line (5,-9) and (5,2) is undefined.

In general, when the x-coordinates of two points on a line are the same, the line is vertical and has no slope. This means that the line (5,-9) and (5,2) is a vertical line and has no slope.

The slope of a line is calculated as the rise over the run, which is the difference in the y-coordinates divided by the difference in the x-coordinates. In this case, the line has the same x-coordinate for both points, so the rise and run are both zero, and the slope is undefined.

Term matrix is not a type of matrix among the given options.

A matrix is a rectangular array of numbers or other mathematical objects for which operations such as addition and multiplication are defined.

There are several types of matrices, including:

1. Square Matrix: A square matrix is a matrix in which the number of rows is equal to the number of columns.

2. Scalar Matrix: A scalar matrix is a type of matrix in which all the elements are equal to a single number (the scalar).

3. Trace Matrix: A trace matrix is a type of matrix in which the trace (sum of the diagonal elements) is a scalar multiple of the identity matrix.

4. Identity Matrix: An identity matrix is a type of matrix in which all the elements on the main diagonal are 1s and all other elements are 0s.

5. Symmetric Matrix: A symmetric matrix is a type of matrix in which the elements above and below the main diagonal are equal.

6. Diagonal Matrix: A diagonal matrix is a type of matrix in which all the elements outside the main diagonal are 0s.

7. Triangular Matrix: A triangular matrix is a type of matrix in which all the elements above or below a specific diagonal are 0s.

8. Orthogonal Matrix: An orthogonal matrix is a type of matrix in which the product of two matrices is the identity matrix.

9. Singular Matrix: A singular matrix is a type of matrix in which the determinant is 0.

10. Inverse Matrix: An inverse matrix is a type of matrix in which the product of the matrix and its inverse is the identity matrix.

Therefore, the answer is D. Term Matrix, as it is not a type of matrix.

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Option D is Answer. Compared with the given matrix, The Term matrix is not a type of matrix.

Term Matrix: It defines a document-term matrix as simply a matrix describing the frequencies of all terms occurring in the collection of text documents.

square matrix: A matrix which is having the same number of rows and columns. It is also called an n*n matrix.

Example:

                [tex]\left[\begin{array}{ccc}1&2\\4&5\\\end{array}\right][/tex]

Scalar matrix: It is a type of square matrix, whose diagonal elements are equal and off-diagonal elements are zero. It is basically a multiple of the square identity matrix.

Example:

                [tex]3I=\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right] =\left[\begin{array}{ccc}3&0&0\\0&3&0\\0&0&3\end{array}\right][/tex]

Where I define the Identity matrix.

In a square matrix, the sum of elements of the principal diagonal is called the ‘trace of a matrix’. We denote the trace of the matrix A by ‘tr A’.

Example: If A =

                    [tex]\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right][/tex]

, then tr A = 1 + 5 + 9 = 15.

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When use the graphs of f and g to graph then, we find that

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

As you know that different x values that must be taken into consideration so that the graph h (x).

At first, h (0) = f (0) + g (0) = 2 - 1 = 1

Now,

If h (1) = f (1) + g (1) =

3 + 0 = 3

Then, after proper calculation, now

Later as we know, hence

finally the answer is h (3) = f (3) + g (3)

= 2 + 0 = 2

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With the bottom of the Ferris Wheel being 5 meters off the ground, and a radius of, r = 7.5 meters, the center of the Ferris Wheel is 12.5 meters off the ground.

A horizontal  line through the center of the Ferris Wheel is 12.5 meters off the ground, and therefore the lower half of the Ferris Wheel is always below 14 meters.

The distance from the horizontal to 14 meters is 1.5 meters (14 - 12.5), and angle between the horizontal and a radius to 14 meters is sin(θ) = 1.5/7.5 or θ = sin-1(1.5/7.5) = 11.54o. This angle height is on both sides of the Ferris Wheel and therefore 180o + 2*11.54o = 203.07o is always under 14 meters. What is above 14 meters is 360o - 203.07o = 156.93o.

Since it takes 8 minutes for 1 revolution, (156.93o/360o)*8 min ≈ 3.5 min, the amount of time the Ferris Wheel is above 14 meters.

I do hope this is helpful! :)

When selecting the ply of the mat which we will use for an image, what we choose is the thickness of the mat. The correct answer is option A.

The width of our mat really influences how our art is showed. A perfect rule of thumb is to select a mat which is at least 1 inch wider than our moulding. Many mats are 2-4 inches wide; usually, larger artwork can use a wider mat, and smaller artwork should be paired with a narrower mat.

Mats available in 4 ply (0.040 to 0.052″) and 8 ply (0.125″); but it does not mean all ply are the same. For instance, there are 0.052″ 4 ply and 0.040″ 4 ply. Double or triple 4 ply mats are possible also to be used in area of 8 ply mats to produce a similar effect.

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Answer:

$43

Step-by-step explanation:

substitute x = 2.75 into f(x)

f(2.75) = 12(2.75) + 10 = 33 + 10 = 43

that is he earns $43

Only answers A, C, and D are in standard form, so we can rule B out immediately.

If you throw (5,1) into A, you get:

   5(5) - 2(1) = 23

        25 - 2 = 23

This checks, so A *might* be the answer.

If you throw (5,1) into C, you get:

  2(5)-3(1) = 9

      10 - 3 ≠ 9

This doesn't check, so it's not C.

If you throw (5,1) into D, you get:

  5(5)+2(1) = 23

     25 + 2 ≠ 23

This doesn't check, so it's not D.

The only standard form equation that (5,1) is a solution for is A.

Your answer is A.

Answer:

A and D

Step-by-step explanation:

> means larger than. 11.436 is larger than 11.422 and 11.286, but not 11.484 or 11.621.

Answer:

3ab-12a/5-31b/6+4x

Step-by-step explanation:

To determine Mary's required speed, we need to first understand the relationship between speed and time.

If Mary's speed is inversely related to her drive home, then this means that as her speed increases, her drive time decreases, and vice versa. In other words, the drive time is inversely proportional to the speed. We can represent this relationship using the equation t = k/s, where t is the drive time, s is the speed, and k is a constant. If we plug in the given values, we get t = 40 minutes = k/55 mph.

Now, if Mary wants to arrive home 15 minutes earlier, we can set the desired drive time equal to 25 minutes (40 minutes - 15 minutes) and solve for the required speed. Substituting this value into the equation above, we get s = k/(25 minutes) = (55 mph)/(25 minutes) = 2.2 mph.

Therefore, Mary needs to drive at a speed of 2.2 mph in order to arrive home 15 minutes earlier. Note that this answer is not realistic, as it is much lower than the speed limit on most roads. This suggests that it may not be possible for Mary to arrive home 15 minutes earlier without breaking the law or increasing her risk of an accident.

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Complete Question:

Mary's speed is inversely related to her drive home. Mary drives home from work in 40 minutes driving 55mph. If Mary needs to get home 15 minutes earlier, how fast dose she need to drive?

Answer:

Step-by-step explanation:

Answer: 25 units

Step-by-step explanation: