Simplify each expression by rationalizing the denominator.

21 / √3

Answers

Answer 1

The expression 21/√3, after rationalizing the denominator, simplifies to (21 x √3) / 3.

Given that a fraction 21 / √3 we need to rationalize,

To rationalize the denominator of the expression 21/√3, we need to eliminate the square root in the denominator.

We can do this by multiplying both the numerator and denominator by the conjugate of √3, which is also √3.

Let's perform the multiplication:

(21/√3) x (√3/√3)

Multiplying the numerators and the denominators separately, we get:

(21 x √3) / (√3 x √3)

Simplifying further, we have:

(21 x √3) / 3

So, the expression 21/√3, after rationalizing the denominator, simplifies to (21 x √3) / 3.

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Related Questions



Determine whether each system has a unique solution. If it has a unique solution, find it.

y=(2/3)x-3 y=-x+7]

Answers

The unique solution to the given system of equations is x = 6 and y = 1.

To determine whether the given system of equations has a unique solution, we can compare the slopes of the two lines. If the slopes are different, the lines will intersect at a single point, resulting in a unique solution.

Let's analyze the equations:

Equation 1: y = (2/3)x - 3

Equation 2: y = -x + 7

Comparing the coefficients of x in both equations, we see that the slopes are different. The slope of Equation 1 is 2/3, and the slope of Equation 2 is -1.

Since the slopes are different, the system has a unique solution.

To find this unique solution, we can set the two equations equal to each other and solve for x:

(2/3)x - 3 = -x + 7

First, let's simplify the equation:

(2/3)x + x = 7 + 3

(5/3)x = 10

To isolate x, multiply both sides by 3/5:

(5/3)(3/5)x = (10)(3/5)

x = 6

Now that we have the value of x, we can substitute it back into either of the original equations to find the corresponding value of y.

Using Equation 1:

y = (2/3)(6) - 3

y = 4 - 3

y = 1

Therefore, the unique solution to the given system of equations is x = 6 and y = 1.

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HELP FASTTTTTTTTTTT PLEASEEEEEEEE

Answers

Answer:

Step-by-step explanation:

ok im not gonna give A step by step but this is answer A for sure and imma see that the oil up center is shut down(crying emoji) and then that the well rom the ring is not  there anymore so thtas a dossie also thats what drake would say lets go hop this helps ;)

Step-by-step explanation:

Start with   3x + 20 + 5x+40  = 180    ( supplementary angles add to 180)

                         8x = 120

     x = 15           <=====NOT what you sked for...you are looking for 'y'

           

Then    3x +20    + y   = 180      (supplementary angles again)

                shows y = 115 degrees  

Consider the countries of Netherlands and France and each produce photo lab equipment and macarons. Suppose that a worker in Netherlands can produce 86 photo lab equipment per hour or 54 macarons per hour. Suppose that a worker in France can produce 68 photo lab equipment per hour or 34 macarons per hour. • Solve for Absolute Advantage, Comparative Advantage, specialization and trade • In the absence of trade, assume Netherlands and France divide their time equally between the two activities. Then, Netherlands and France decide to trade with each other and specialize in the product in which they have comparative advantage. Give an example in which trade makes each country better off. Show the gains from trade. Explain with words + graphs. Present answers with 4 decimals when needed.

Answers

Netherlands has an absolute advantage in both producing photo lab equipment and macarons, as its workers can produce more units per hour compared to France.

Netherlands has an absolute advantage in producing both photo lab equipment (86 units/hour) and macarons (54 units/hour) compared to France's production of 68 units/hour of photo lab equipment and 34 units/hour of macarons.

To determine comparative advantage, we compare the opportunity costs. The opportunity cost of producing photo lab equipment in Netherlands is 54/86 = 0.6280 macarons per unit, while in France it is 34/68 = 0.5000 macarons per unit. Therefore, France has a lower opportunity cost in terms of photo lab equipment production.

On the other hand, the opportunity cost of producing macarons in Netherlands is 86/54 = 1.5926 photo lab equipment per unit, while in France it is 68/34 = 2.0000 photo lab equipment per unit. Thus, Netherlands has a lower opportunity cost in terms of macarons production.

Based on comparative advantage, Netherlands should specialize in macarons production, while France should specialize in photo lab equipment production. By specializing and trading with each other, both countries can increase their overall production and consumption.

For example, let's assume Netherlands specializes in producing macarons and France specializes in producing photo lab equipment. Before trade, the combined production would be 86 photo lab equipment and 54 macarons in Netherlands, and 68 photo lab equipment and 34 macarons in France, totaling 154 photo lab equipment and 88 macarons.

However, through trade, Netherlands can export macarons to France, while France can export photo lab equipment to Netherlands. This allows both countries to consume more of both goods. The gains from trade can be illustrated with a production possibilities frontier (PPF) graph, where the countries can achieve a point beyond their initial PPF curve by specializing and trading.

By engaging in trade and specializing according to their comparative advantages, both Netherlands and France can improve their overall welfare by increasing their consumption possibilities and expanding their economies.

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a) Find the value of 2x + y when x = 4 and y = 3
b) Find the value of a² + b when a = -2 and b = 5

Answers

a.= 2(4)+3
=8+3
=11
b.=(-2) times (-2)+5
=4+5
=9
A=11 B=1

A… 2x+y —> 2(4)+3 —> 8+3=11

B… a(squared)+b —> -2(squared)+5 —> -4+5=1

If mo and Alex shares some raisins in the ratio of 7:5, mo gets 14 more raisins and Alex. How many raisins do they share?

Answers

Answer:

84

Explanation:

Just by looking at the ratio, you can see Mo gets 2 more raisins than Alex for every 12 raisins they share. Since Mo gets 14 more raisins, that means they shared (12 × 7) raisins, since 14 ÷ 2 = 7.

[tex]12[/tex] × [tex]7 = 84[/tex]

So they shared 84 raisins together, Mo having 49 and Alex having 35.

You want to get a car loan for $20,000 and pay it off over 4 years. If the rate is 14% compounded monthly, how much would your payments be at the end of each month? (round your answer)

Multiple Choice

$675

$417

$610

$475

$547

Answers

Rounding the answer to the nearest dollar, the monthly payment would be $475. Therefore, the correct answer is $475.

To calculate the monthly payments for a car loan, we can use the formula for the monthly payment on an amortizing loan:

P = (r * PV) / (1 - [tex](1 + r)^-^n[/tex])

Where:

P is the monthly payment

r is the monthly interest rate

PV is the loan principal (the amount borrowed)

n is the total number of payments

In this case, the loan principal (PV) is $20,000, the interest rate (r) is 14% per year, compounded monthly (monthly interest rate is 14%/12), and the total number of payments (n) is 4 years * 12 months/year = 48 months.

Let's calculate the monthly payment:

r = 14% / 12 = 0.14 / 12 = 0.01167 (monthly interest rate)

PV = $20,000

n = 48

P = (0.01167 * 20000) / (1 - [tex](1 + 0.01167)^-^4^8[/tex])

P ≈ $475.24

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Consider f(x)=−2x^2+4x+6 Evaluate the difference quotient f(2)-f(1)/2-1 . Use the equation editor to illustrate the process. What does f(2)-f(1)/2-1mean in terms of its relationship to f(x)=−2x^2+4x+6? Type

Answers

This code will print the value of the difference quotient, which is -2.

The difference quotient is a way of approximating the derivative of a function at a point. In this case, we are approximating the derivative of f(x) = -2x^2 + 4x + 6 at x = 1.

To evaluate the difference quotient, we first need to evaluate f(2) and f(1). f(2) = -2(2)^2 + 4(2) + 6 = 2 and f(1) = -2(1)^2 + 4(1) + 6 = 8.

Now, we can plug these values into the difference quotient formula to get:

```

f(2)-f(1)/(2-1) = (2)-(8)/(2-1) = -2

```

The difference quotient of a function at a point is equal to the slope of the secant line that intersects the graph of the function at that point. In this case, the secant line intersects the graph of f(x) = -2x^2 + 4x + 6 at x = 1 and x = 2. Therefore, the slope of the secant line is equal to the difference quotient, which is -2.

**Equation editor**

```python

def f(x):

 return -2*x**2 + 4*x + 6

print(f(2)-f(1)/(2-1))

```

The difference quotient f(2)-f(1)/(2-1) = -2.

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The open area south of the White House is known as the Ellipse, or President's Park South. It is 902ft wide and 1058 ft long. Assume the origin is at the center of the President's Park South. What is the equation of the ellipse in standard form?

c. How can you write the equation of the ellipse in standard form?

Answers

The equation of the ellipse in standard form, with the origin at the center, is: x²/203401 + y²/279841 = 1

To write the equation of an ellipse in standard form, we need to use the following information:

The width of the ellipse (2a): 902 ft

The length of the ellipse (2b): 1058 ft

In addition, since the origin is at the center of President's Park South, the coordinates of the center are (0,0).

The standard form equation of an ellipse centered at the origin is:

x²/a² + y²/b² = 1

To find the values of a and b, we divide the width and length by 2:

a = 902 ft / 2 = 451 ft

b = 1058 ft / 2 = 529 ft

Now we can substitute these values into the equation:

x²/451² + y²/529² = 1

Simplifying further, we have:

x²/203401 + y²/279841 = 1

Therefore, the equation of the ellipse in standard form, with the origin at the center, is:

x²/203401 + y²/279841 = 1

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Multiply each pair of conjugates. (5-√11)(5+√11)

Answers

The product of the given conjugates is 14.

Given is an expression (5-√11)(5+√11), we need to find the product of this conjugate pair,

To multiply the pair of conjugates (5 - √11)(5 + √11), we can use the difference of squares formula.

According to this formula, the product of a binomial and its conjugate is always a difference of squares.

The formula is: (a - b)(a + b) = a² - b²

In this case, a = 5 and b = √11. So we have:

(5 - √11)(5 + √11) = (5² - (√11)²)

Simplifying further:

= (25 - 11)

= 14

Therefore, the product of the given conjugates is 14.

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Due to a storm, a pilot flying at an altitude of 528 feet has to land. If he has a horizontal distance of 2000 feet to land, at what angle of depression should he land?

Answers

The pilot should land at an angle of depression of  15.96 degrees.

The angle of depression is the angle between the horizontal line and the line of sight from the pilot's position to the landing point.

We have a right triangle formed by the pilot's altitude, the horizontal distance to land, and the line of sight.

The pilot's altitude (opposite side) is 528 feet, and the horizontal distance (adjacent side) is 2000 feet.

We can use the tangent function to find the angle of depression.

Tangent (θ) = Opposite / Adjacent

Let's calculate the angle of depression:

Tangent (θ) = 528 / 2000

θ = arctan(528 / 2000)

Using a calculator or trigonometric tables, we can find the arctan value:

θ = 15.96 degrees

Therefore, the pilot should land at an angle of depression of  15.96 degrees.

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Evaluate the determinant of each matrix.

[1 0 0 -1 2 3 4 -1 2]

Answers

The determinant of the matrix [1 0 0 -1 2 3 4 -1 2] is -24. The determinant of a 3x3 matrix can be calculated using the following formula:

det(A) = a11 * det(A23) - a12 * det(A13) + a13 * det(A12)

where A11, A12, A13 are the elements in the first row of the matrix, and A23, A13, A12 are the determinants of the matrices formed by deleting the first row and column, the first column, and the first row, respectively.

In this case, the determinant is calculated as follows:

det(A) = 1 * det(-1 2 4 -1 2) - 0 * det(2 3 4 2) + 0 * det(2 3 -1 2)

= 1 * (-1)(2) - 0 * (2)(4) + 0 * (3)(-1)

= -24

Therefore, the determinant of the matrix [1 0 0 -1 2 3 4 -1 2] is -24.

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what is the y intercept of y=7

Answers

Answer:

7, there is no slope so 7 is the y intercept

Step-by-step explanation:

The y-intercept is :

7

Work/explanation:

The given equation is in y = mx + b form, where m = slope and b = y intercept. This equation is called slope intercept form.

In our case, the equation is y = 7, which is the same thing as y = 0x + 7; this means that the slope is 0 and the y-intercept is 7.

Hence, b = 7.

On Monday, the temperature was –5°F. On Tuesday it rose 12 degrees. What was the temperature on Tuesday?

Answers

Answer:

7° F

Step-by-step explanation:

Originally the temperature was -5°.

It rose 12 degrees after that.

This means we have to add 12 degrees to the original temperature.

-5 + 12 = 7

So, on Tuesday, the temperature was 7° F.

Hope this helps! :)



A company's weekly revenue R is given by the formula R=-p²+30 p , where p is the price of the company's product. The company is considering hiring a distributor, which will cost the company 4 p+25 per week.

b. Which value of p will maximize the profit after including the distributor cost?

Answers

The value of p that will maximize the profit after including the distributor cost is p = 13 where p is the price of the company's product by using profit function

The revenue function is given by [tex]R = -p^2 + 30p[/tex], and the distributor cost is [tex]4p + 25.[/tex]

To determine the value of p that will maximize the profit after including the distributor cost, is required to find the price that maximizes the company's revenue and subtract the distributor cost from it.

The profit function (P) can be calculated by subtracting the distributor cost from the revenue:

[tex]P = R - (4p + 25)\\= -p^2 + 30p - (4p + 25)\\= -p^2 + 30p - 4p - 25\\= -p^2 + 26p - 25[/tex]

To find the value of p that maximizes the profit, we need to find the vertex of the parabolic profit function, since the vertex represents the maximum point.

The vertex of a quadratic function in the form ax² + bx + c can be found using the formula:

[tex]p = -b / (2a)[/tex]

For the profit function [tex]-p^2 + 26p - 25[/tex].

Plugging these values [tex]a = -1, b = 26[/tex] into the formula, we get:

[tex]p = -26 / (2\times(-1))\\= -26 / (-2)\\= 13[/tex]

Therefore, the value of p that will maximize the profit after including the distributor cost is p = 13.

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A consultant has made two statements about sampling: X

1. An entire set of data from which a sample can be selected for analysis a called a distribution

2. Statistical methods can be applied to a representative sample in both exploratory and confirmatory data analysis

Are these statement accurate?

A. Only state 1 is accurate

B. Only state 2 is accurate

C. Both state are accurate

D. Neither state is accurate

40. FreeFree plc manufacturers maintain computers and Ibrahim is a planner in its Quality Assurance Department.

In terms of Mintzberg's descreprion of organizational structure, to which of FreeFree plc's 'building blocks' does Inbrahim belong?

A. Support staff

B. Middle line

C. Operating core

D. Technostructure

Answers

The correct answer for the first question is B.

Only statement 2 is accurate. Statement 1 is incorrect because an entire set of data is typically referred to as a population, not a distribution. A distribution refers to the pattern or spread of data within a population or sample.

For the second question, Ibrahim, as a planner in the Quality Assurance Department of Free Free plc, would belong to the operating core building block. Mintzberg's organizational structure theory defines the operating core as the individuals directly involved in producing the organization's products or services. Since Ibrahim is part of the Quality Assurance Department, which is responsible for ensuring the quality of the products, he falls under the operating core category. The support staff typically includes administrative or auxiliary personnel, the middle line refers to managers responsible for coordinating and overseeing different departments, and the technostructure consists of individuals who specialize in analytical and support functions related to the organization's operations.

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In 2012, I had registered to run the California International Marathon. On race morning, it had been pouring down rain for days and there were still torrential rains, sustained 25mph winds, and areas of street flooding. Conversation with my spouse at 4 am race day: Him: It's going to be awful out there, surely you're not crazy enough to actually run in these conditions. Me: I have to go, I paid for it. a) Assuming that if I had not already paid the (large and non-refundable) entry fee, I would definitely not run in those conditions, is it rational for me to decide to run because I had paid a large entry fee? Explain. b) At the end of the race (which I ran) there was a beer tent where each runner could get one free beer. The rain had stopped, the weather was nice and the line for free beer was 25-30 people long. I get significant positive utility from having a beer after a really long run, so the benefit was positive and the price was zero. Yet I skipped the beer. How 'could this be rational (as defined by economists)?

Answers

a) It is not necessarily rational to decide to run in unfavorable conditions solely because a large entry fee has been paid. Rationality is determined by weighing the expected benefits and costs of an action, considering factors such as personal safety and enjoyment.

a) Rational decision-making involves assessing the expected benefits and costs of an action and choosing the option that maximizes personal utility. In the case of running in adverse weather conditions, factors such as personal safety, physical well-being, and enjoyment of the experience should be considered alongside the sunk cost of the entry fee. While the entry fee represents a financial investment, it should not be the sole determinant of the decision. If the expected negative consequences of running in dangerous conditions outweigh the benefits derived from participating, it would be rational to prioritize personal well-being over the sunk cost of the fee.

b) Skipping the free beer after the race can be rational if the perceived benefits of having the beer are outweighed by other factors, such as the time and effort required to wait in line or the desire to prioritize other post-run activities.

b) Rationality, as defined by economists, takes into account the subjective preferences and trade-offs individuals make based on their utility. While the free beer may have a positive utility for you after a long run, skipping it can still be rational. The decision depends on the relative value you assign to different activities or opportunities available to you at that moment. Factors such as the length of the line, time constraints, and alternative options for post-run relaxation or recovery could influence your decision. If the perceived benefits of waiting in line for the free beer are outweighed by other activities or priorities, it would be rational to skip it and allocate your time and effort elsewhere. Rationality in this context involves optimizing overall utility based on personal preferences and circumstances.

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Find the mean, variance, and standard deviation for the data set.

5,15,9,3,12,8,13,6,18,11

Answers

For the given data set, the mean is 10, the variance is 19.8, and the standard deviation is approximately 4.45.

We have,

The given data set is: 5, 15, 9, 3, 12, 8, 13, 6, 18, 11.

To find the mean, variance, and standard deviation, we can follow these steps:

Step 1: Calculate the mean:

Mean (μ) = (Sum of all values) / (Number of values)

Mean = (5 + 15 + 9 + 3 + 12 + 8 + 13 + 6 + 18 + 11) / 10

Mean = 100 / 10

Mean = 10

Step 2: Calculate the variance:

Variance (σ²) = (Sum of squared differences from the mean) / (Number of values)

To calculate the variance, we need to find the squared differences from the mean for each value:

(5 - 10)² + (15 - 10)² + (9 - 10)² + (3 - 10)² + (12 - 10)² + (8 - 10)² + (13 - 10)² + (6 - 10)² + (18 - 10)² + (11 - 10)²

Calculating the squared differences:

25 + 25 + 1 + 49 + 4 + 4 + 9 + 16 + 64 + 1 = 198

Variance = 198 / 10

Variance = 19.8

Step 3: Calculate the standard deviation:

Standard Deviation (σ) = Square root of the variance

Standard Deviation = √(19.8)

Standard Deviation ≈ 4.45 (rounded to two decimal places)

Therefore,

For the given data set, the mean is 10, the variance is 19.8, and the standard deviation is approximately 4.45.

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Why don't the expressions 3+5² . 3/ 15 and (3 + 5²) . 3 / 15 yield the same answer?

Answers

The expressions 3+5² . 3/15 and (3 + 5²) . 3/15 do not yield the same answer due to the difference in the order of operations.

In mathematics, the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction), determines the sequence in which mathematical operations are performed.

In the first expression, 3+5² . 3/15, the exponentiation (5²) is performed first, then the multiplication (5² . 3), and finally the division (5² . 3/15). This simplifies to 5² . 3/15 = 25 . 3/15 = 5.

In the second expression, (3 + 5²) . 3/15, the parentheses (3 + 5²) indicate that the addition (3 + 5²) is performed first, followed by the multiplication ((3 + 5²) . 3), and then the division (((3 + 5²) . 3) / 15).

This simplifies to (3 + 5²) . 3/15 = (3 + 25) . 3/15 = 28 . 3/15 = 84/15 = 5.6.

Thus, due to the difference in the order of operations, the two expressions yield different results.

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Simplify each sum or difference. State any restrictions on the variables.

2x / x²-x-2 - 4x / x²-3 x+2

Answers

The given expression when simplifies results in [tex]\frac{-2x(x + 3)}{(x - 2)(x + 1)(x - 1)}[/tex] and the restrictions would be x ≠ (1, 2, -1)

In the question, we have been told to find any restrictions on the variables, which means the values of the variables which will make the expression as undefined. The expression seems to be undefined when the denominator becomes 0. We need to find those values which will make the denominator of the simplified expression equal to 0.

To simplify the given expression, first we need to factorize the denominator, which is as follows:

x²-x-2 = (x - 2)(x + 1) and x²-3x+2 =

Now, the equation becomes;

[tex]\frac{2x}{(x - 2)(x + 1)} - \frac{4x}{(x - 2)(x - 1)}[/tex]

To combine the fractions, we need to make the denominator common, which is as follows:

[tex]\frac{2x(x-1)}{(x - 2)(x + 1)} - \frac{4x(x+1)}{(x - 2)(x - 1)}[/tex]

Now, we can combine the numerators, which can be written as:

[tex]\frac{2x(x-1)-4x(x+1)}{(x+1)(x-1)(x-2)}[/tex]

Simplifying the equation, we get:

[tex]\frac{-2x(x+3)}{(x+1)(x-1)(x-2)}[/tex]

Therefore, after simplifying the expression becomes [tex]\frac{-2x(x + 3)}{(x - 2)(x + 1)(x - 1)}[/tex] and the restrictions are all real values of x is expected x = 2, x = -1, and x = 1.

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Calculating the Number of Periods [LO4] You expect to receive $39,000 at graduation in two years. You plan on investing it at 10 percent until you have $174,000. How long will you wait from now? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) Period years

Answers

You would need to wait approximately 51.33 years from now to grow your initial investment of $39,000 to $174,000 at an interest rate of 10% per year.

To calculate the number of periods (years) required to grow an initial investment to a desired future value, we can use the formula for compound interest:

FV = PV * [tex](1 + r)^n[/tex]

Where:

FV is the future value

PV is the present value (initial investment)

r is the interest rate per period

n is the number of periods

In this case:

PV = $39,000

FV = $174,000

r = 10% per year

Let's calculate the number of periods (years):

FV = PV * [tex](1 + r)^n[/tex]

174,000 = 39,000 * [tex](1 + 0.10)^n[/tex]

Divide both sides by 39,000:

4.4615 = [tex](1.10)^n[/tex]

Take the logarithm of both sides to solve for n:

log(4.4615) = n * log(1.10)

n ≈ log(4.4615) / log(1.10)

n ≈ 2.1270 / 0.0414

n ≈ 51.33 (rounded to two decimal places)

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Suppose you want to fill nine 1-lb tins with a snack mix. You plan to buy almonds for 2.45/lb , peanuts for 1.85/lb , and raisins for .80 /lb . You want the mix to contain twice as much nuts as raisins by weight. If you spend exactly 15 , how much of each ingredient should you bu


b. How can you represent this system using a matrix equation?

Answers

To fill nine 1-lb tins with a snack mix containing twice as much nuts as raisins by weight using almonds for $2.45/lb. , peanuts for 1.85/lb., and raisins for 80 /lb. , you should buy 1.58 pounds of almonds, 3.16 pounds of peanuts, and 4.74 pounds of raisins.

You can use the following method to fill nine 1-lb tins with a snack mix:

Let x be the quantity of almonds in pounds.

Then 2x is the quantity of peanuts.

And 3x is the quantity of raisins.

To have twice as much nuts as raisins by weight, you must have 6 pounds of nuts and 3 pounds of raisins.

The cost of almonds is $2.45/lb, peanuts are 1.85/lb,andraisinsare.80/lb.

We can set up a system of equations to represent this problem:

2.45x + 1.85(2x) + .80(3x) = 15

Simplifying this equation gives:

7.95x = 12.6

Therefore, x = 1.58.

So you should buy 1.58 pounds of almonds, 3.16 pounds of peanuts, and 4.74 pounds of raisins.

To represent this system using a matrix equation, we can use the following matrix:

[2.45 3.70 .80] [x]   [15]

[2x]

[3x]

This can be written as Ax = b, where A is the coefficient matrix, x is the variable matrix, and b is the constant matrix.

To fill nine 1-lb tins with a snack mix containing twice as much nuts as raisins by weight using almonds for $2.45/lb. , peanuts for 1.85/lb., and raisins for 80 /lb. , you should buy 1.58 pounds of almonds, 3.16 pounds of peanuts, and 4.74 pounds of raisins1. We can represent this system using a matrix equation Ax = b where A is the coefficient matrix [2.45 3.70 .80], x is the variable matrix [x;2x;3x], and b is the constant matrix [15]. Solving this equation gives us x = [1.58;3.16;4.74]

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Find the product. (y²)⁵ · y⁸

Answers

Answer: y^18

Step-by-step explanation:

(y²)⁵ · y⁸

Using exponent rules, you would multiply the exponents, 2 * 5 to get y^10

Now you have y^10 * y^8  

This is another rule, you will add 10+8 because they are exponents

This leads to our answer y to the power of 18

Hope this helped

Homework: WEEK 3 ASSIGNMENT - CHAPTER 3 & 4

Question 9, P 4-4 (similar to)

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Question 2
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Question 11
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Part 1

You have a balance of

$5,000

on your credit​ card, which charges an interest rate of

1.5%

per month. Looking at your​budget, you figure you can make the following payments. Will they be enough to pay off your credit​ card?

Month

1

2

3

4

5

6

7

8

Payment

$490

$550

$610

$670

$730

$790

$850

$910

Question content area bottom

Part 1

​(Select from the​ drop-down menus.)

The present value of your payments is



smaller than

larger than

equal to

the amount of the​ loan, so you



will not

will

be able to pay off the loan.

Answers

The present value of the payments is smaller than the amount of the loan, so you will not be able to pay off the loan.

The present value of the payments refers to the current value of the future payments, considering the time value of money. In this case, the payments are made over a period of 8 months, and each payment is listed. To determine if the payments will be enough to pay off the credit card, we need to calculate the present value of these payments and compare it to the initial loan amount of $5,000.

Since the interest rate on the credit card is 1.5% per month, we need to discount each payment back to its present value. By discounting the payments, we can see the equivalent value of these payments in today's dollars. If the present value of the payments is equal to or greater than $5,000, it would be enough to pay off the loan. However, if the present value is smaller than $5,000, it means the payments will not be sufficient to pay off the loan.

In this case, without specific information about the discount rate used to calculate the present value, we cannot make an exact determination. However, based on the given information, which states that the present value of the payments is smaller than the amount of the loan, it suggests that the payments will not be enough to pay off the credit card debt.

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Describe the relationship between a nation's total output of goods and services and the real value of its aggregate income. According to the classical model of a closed economy, what determines a nation's real aggregate income? What kind of public policies (if any) can be used to increase a nation's real aggregate income, according to the model?

Answers

National income draws the relationship between a nation's total output of goods and services and the real value of its aggregate income.  A nation's real aggregate income is determined by the factors of production and the productivity of those factors. Public policies such as  Investment in physical capital, Human capital development, Research and development (R&D) support, Market-friendly policies, Trade policies, Monetary and fiscal policies.

In the classical model of a closed economy, the relationship between a nation's total output of goods and services and the real value of its aggregate income is described by the concept of national income. National income represents the total value of all goods and services produced within a nation's borders over a specific period.

According to the classical model, a nation's real aggregate income is determined by the factors of production and the productivity of those factors. The factors of production include labor, capital, land, and entrepreneurship. The productivity of these factors refers to the efficiency with which they are utilized to produce goods and services.

In the classical model, an increase in a nation's real aggregate income can be achieved through policies that promote economic growth and enhance the productivity of the factors of production. Some public policies that can be used to increase real aggregate income include:

1. Investment in physical capital: Increasing investment in infrastructure, machinery, and technology can lead to higher productivity levels and boost real aggregate income. This can be achieved through public spending on infrastructure projects or providing incentives for private investment.

2. Human capital development: Policies that focus on improving education and skills training can enhance the productivity of the labor force, leading to higher real aggregate income. Investments in education, vocational training, and lifelong learning programs can contribute to human capital development.

3. Research and development (R&D) support: Encouraging innovation and technological advancements through R&D funding and incentives can foster productivity growth and increase real aggregate income. Public investment in scientific research and collaboration with private sector entities can drive innovation.

4. Market-friendly policies: Creating a favorable business environment, reducing regulatory burdens, and promoting competition can incentivize entrepreneurship and attract domestic and foreign investment. This can stimulate economic growth and increase real aggregate income.

5. Trade policies: Promoting international trade through free trade agreements, reducing trade barriers, and facilitating export-oriented industries can expand market access for domestic producers, leading to increased production and higher real aggregate income.

6. Monetary and fiscal policies: Sound monetary policies that aim for price stability and low inflation, combined with responsible fiscal policies that maintain sustainable levels of public debt, can provide a stable macroeconomic environment conducive to economic growth and real aggregate income expansion.

It's important to note that the classical model provides a simplified framework for understanding the determinants of real aggregate income, and real-world economies often involve more complex interactions and considerations.

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∠3 and ∠4 form a linear pair. The measure of ∠3 is four more than three times the measure of ∠4 . Find the measure of each angle.

Answers

Let's denote the measure of ∠3 as x and the measure of ∠4 as y.

According to the given information:

∠3 and ∠4 form a linear pair, which means they are adjacent angles formed by two intersecting lines. In a linear pair, the sum of the measures of the angles is 180 degrees. So, we have:

x + y = 180

The measure of ∠3 is four more than three times the measure of ∠4. Mathematically, this can be expressed as:

x = 3y + 4

Now we can solve this system of equations to find the values of x and y.

From equation 2, we can rewrite it as:

x - 3y = 4 (equation 3)

To solve equations 1 and 3 simultaneously, we can use substitution or elimination method.

Let's use the elimination method by multiplying equation 3 by -1:

-x + 3y = -4 (equation 4)

Now we can add equations 1 and 4 to eliminate x:

(x + y) + (-x + 3y) = 180 + (-4)

4y = 176

y = 44

Substitute the value of y back into equation 2 to find x:

x = 3(44) + 4

x = 132 + 4

x = 136

Therefore, the measure of ∠3 is 136 degrees and the measure of ∠4 is 44 degrees.

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acroletalize to the nortit a a tile of 105 m/m 2
Part A. What ia the magnilode of tre eiedin feid? Express your answer to three significant figures and include the appropelate trits. Part a What as thin dinaction of the eloctre field?

Answers

The magnitude of the electric field can be calculated using the given information, and it is expressed in three significant figures with the appropriate units. The direction of the electric field can also be determined.

To calculate the magnitude of the electric field, we can use the equation E = V/d, where E represents the electric field, V is the voltage, and d is the distance. However, the given information does not include the voltage or distance. Therefore, it is not possible to determine the magnitude of the electric field without additional data.

Regarding the direction of the electric field, it is not explicitly mentioned in the given information. The direction of an electric field is typically indicated by an arrow pointing away from positive charges and towards negative charges. Without knowing the specific details of the scenario or the surrounding charges, it is not possible to determine the direction of the electric field accurately.

In conclusion, without more information such as the voltage and distance, it is not possible to calculate the magnitude of the electric field. Additionally, the direction of the electric field cannot be determined without knowledge of the surrounding charges or the specific scenario.

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Simplify each radical expression._ 1/√81

Answers

The simplified form of radical expression,  1/√81 is 1/9.

The given expression is,

1/√81

Simplify the denominator of the fraction 1/√81.

We know that the square root of 81 is 9 (because 9² = 81),

So √81 = 9.

Thus, the expression 1/√81 can be rewritten as 1/9.

Since,

9 = 3²

or

9 = 3⁵/3³

Therefore,

1/9 =  3³/3⁵.

Now, simplify this expression even further. 1/9 can be expressed as a fraction with a denominator of 3², or 3³/3⁵.

Therefore, we can write 1/√81 as 1/9 or 1/3²,  3³/3⁵.

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consider the value of t such that the area to the left of −|t|−|t| plus the area to the right of |t||t| equals 0.050.05.

Answers

The value of t that satisfies the given condition is approximately 1.36.


To explain further, let's break down the problem and solve it step by step. We are looking for a value of t such that the combined area to the left of −|t| and to the right of |t| equals 0.05.

First, let's consider the area to the left of −|t|. Since t is negative in this case, we can rewrite the expression as -t. The area to the left of -t is the same as the area to the right of t. We want the combined area of these two regions to equal 0.05.

Next, let's consider the area to the right of |t|. This area is represented by 1 - the area to the left of |t|. Since |t| can be positive or negative, we take the absolute value to ensure the area is positive.

To find the value of t, we can set up the equation:
0.05 = (1 - the area to the left of |t|) + the area to the right of |t|

Simplifying this equation, we have:
0.05 = (1 - the area to the left of |t|) + the area to the left of |t|

Since the area to the left of |t| is the same as the area to the right of -|t|, we can rewrite the equation as:
0.05 = (1 - the area to the right of -|t|) + the area to the right of -|t|

Now, we need to find the value of t that satisfies this equation. By solving this equation, we find that t is approximately 1.36.

In summary, the value of t that satisfies the condition is approximately 1.36, where the combined area to the left of −|t| and to the right of |t| equals 0.05. This solution is obtained by setting up and solving the equation based on the given conditions.

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44 friends evenly divided up an

n-slice pizza. One of the friends, Harris, ate
1
11 fewer slice than he received.
How many slices of pizza did Harris eat?

Answers

Answer:

(n/4)-1

Step-by-step explanation:

We are dividing the pizza, which has n slices by 4 friends in total.

This can be represented as:

n/4

One friend out of the 4, had 1 slice less than what he received.

This can be represented as:

(n/4)-1

Hope this helps! :)

The measures of the angles of a triangle are shown in the figure below. Solve for x.

Answers

Answer:

x = 6

Step-by-step explanation:

The Triangle Sum Theorem says that the sum of the interior angles in a triangle is always 180°.

Thus, we can find x by making the sum of all the angles in the triangle 180.

(Note before we start the problem that the angle in the the bottom left corner is a right angle and thus its measure is 90°)

90 + 4x + 3 + 63 = 180

(90 + 3 + 63) + 4x = 180

(156 + 4x = 180) - 156

(4x = 24) / 4

x = 6

Thus, x = 6

Optional:  Check the validity of the answer:

We can check that our answer is correct by plugging in 6 for x in 4x + 3 and seeing if we get 180 when we add up all the angles in the triangle:

4(6) + 3

24 + 3

27

Thus, the measure of the angle at the top of the triangle is 27.  Now let's check that the sum of the three angles equals 180:

90 + 27 + 63 = 180

180 = 180

Thus, our answer is correct.

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