Round your answer to four decimal places if necessary. Approximate the area under the curve on the given interval using n rectangles and the evaluation rules for the left endpoint. y = 3 cos(x) on [0, 1/2), n = 28 Area under the curve

Answer:

A. y = 3x + 1

Explanation:

Find slope:

\(\sf slope: \dfrac{y_2 - y_1}{x_2- x_1} = \dfrac{\triangle y}{\triangle x} \ \ where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points\)

Take two points: (0, 1), (1, 4)

\(\sf \rightarrow slope \ (m) : \dfrac{4-1}{1- 0 } = 3\)

Equation:

\(\sf y - y_1 = m(x - x_1)\)

\(\sf y - 1 = 3(x - 0)\)

\(\sf y = 3x + 1\)

Samuel's order will ultimately cost $39.84.

One DVD Samuel purchased cost $9.96.

He purchased four DVDs in total.

as a result, his total outlay will be 4 * 9.96 = $39.84.

The 7.75% sales tax that must be paid is disclosed to us.

Adding 7.75% to $39.84 yields

39.84 x 7.75/(100) (100)

= $3.0876

Consequently, the total amount of tax due is $3.0876.

Using 25% of 39.84 to calculate a 25% discount,

39.84 x 25/100

= 996/100

=$9.96

Consequently, the total discount on the total of $39.84 will be $9.96.

as a result, the updated purchase price will be,

39.84-9.96

=$29.88

adding the tax to the updated price,

9.96+29.88

= $39.84

Consequently, Samuel's order will ultimately cost $39.84.

One must compute percentage in order to determine the proportion of a whole that is stated in terms of 100. A percentage can be determined using one of two methods:

using the unitary method.

by changing the fraction's denominator to 100.

It should be noted that the second method of percentage computation is not used when the denominator is not a factor of 100. In these circumstances, we make use of the unitary approach.

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The general slope intercept form equation of a line is as stated below;

where m is the slope and b is the intercept.

If we compare the given equation y = 5x-1 with the equation of a line, we can deduce that the slope, m, is 5.

The slope of a line perpendicular to another is always given as -1/m, therefore the line perpendicular to the line y=5x-1 will have a slope of -1/5;

So let's go ahead and substitute m= -1/5, into the point slope equation to determine the line that passes through (-5,7);

Remember, the point slope form equation of a line is given as;

Substituting the above values, we'll have

Let's open up the parenthesis first, we'll have;

Let's isolate y by adding 7 to both sides of the equation;

The above equation is the required equation of the line in slope intercept form which can be compared to the one earlier written above(y = mx + b).

According to the given information, the sample period should be from 2010-2020.

a) Model specification

The model specification based on the scenario above is as follows:

SDF= f(T, TI, NL)

Where: SDF= Sustainable Development Framework

T= Tourism

TI= Technological innovation

NL= National leadership

b) Justification for the selection of the dependent and independent variables model:

Dependent variable: The dependent variable in this model is Sustainable Development Framework (SDF). The model seeks to develop a framework for sustainable development that would facilitate growth, environmental and socio-cultural sustainability.

Independent variables:

The independent variables are tourism sustainability, technological innovation, and quality of leadership. These variables drive economic development. The inclusion of tourism sustainability reflects its importance in the global economy and its potential to drive growth.

The inclusion of technological innovation reflects its potential to enhance productivity and create new industries. The inclusion of national leadership reflects the role of governance in promoting sustainable development and managing negative externalities.

c) Justification for the selection of the sample period:

The sample period should be selected based on the availability of data for the variables of interest. Ideally, the period should be long enough to capture trends and patterns in the data. However, it should not be too long that the data becomes obsolete or no longer relevant.

Additionally, the period should also reflect the context and relevance of the research question. Therefore, the sample period for this study should cover the last decade to capture the trends and patterns in the data and reflect the relevance of the research question.

The sample period should be from 2010-2020.

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Answer:

my best guess would be 5.5cm, if you get that wrong, try 6cm. hope you have a wonderful day! you are beautiful!

The amount you could save per month would be 25% of your discretionary money.

Discretionary income is the money you have left over after paying taxes and necessary cost-of-living expenses.

The formula for discretionary money is: Discretionary money = Realized income - Fixed expenses. Inputting data, we have: Discretionary money = $3,543.22 - Fixed expenses

Amount to be saved = 25% of discretionary money

Amount to be saved = 0.25 * (Realized income - Fixed expenses)

Therefore, the amount savable is calculated as 0.25 times the difference between your realized income and fixed expenses.

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Answer:

420

Step-by-step explanation:

edge

Answer: 1 Student

Step-by-step explanation:

Hope this helps!

(a) A ∩ B = {1, 6, 9}

(b) A ∪ B = {1, 2, 3, 4, 5, 6, 7, 8, 9}

(c) A - B = {2, 5, 7}

(d) B - A = {3, 4, 8}

(a) The intersection of sets A and B, denoted as A ∩ B, is the set containing the elements that are common to both sets. By comparing the elements in A and B, we find that A ∩ B = {1, 6, 9}.

(b) The union of sets A and B, denoted as A ∪ B, is the set containing all the elements from both sets without duplication. By combining the elements in A and B, we obtain A ∪ B = {1, 2, 3, 4, 5, 6, 7, 8, 9}.

(c) The set difference of A and B, denoted as A - B, is the set containing the elements that are in A but not in B. By removing the elements of B from A, we get A - B = {2, 5, 7}.

(d) The set difference of B and A, denoted as B - A, is the set containing the elements that are in B but not in A. By removing the elements of A from B, we have B - A = {3, 4, 8}.

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Answer:

x = 43°

y = 32°

Step-by-step explanation:

x = 43° ( vertical angles)

By exterior angle property of a triangle.

43° + y° = 75°

y° = 75° - 43°

y° = 32°

Given:

a.) A plot of land for sale has a width of x ft. and a length that is 8 ft. less than its width.

b.) A farmer will only purchase the land if it measures 240 ft.

From the given description of the measurement of the land, we generate the following equations:

Width = w

Length = w - 8

Area of the Land = 240 ft.^2

Area = Width x Length

240 = (w)(w - 8)

240 = w^2 - 8w

w^2 - 8w - 240 = 0

Question 1: Create an equation in terms of w that models this situation.​

Answer: 240 = w^2 - 8w

Factoring out 240 = w^2 - 8w, we get:

240 = w^2 - 8w

w^2 - 8w - 240 = 0

w^2 - 8w - 240 = 0 → (w - 20)(w + 12) = 0

First possible measure of the width,

w - 20 = 0

w = 20 ft.

Second possible measure of the width,

w + 12 = 0

w = -12 ft.

A dimension must never be a negative value, therefore, the width must be equal to 20 ft.

Let's determine the length,

Length = w - 8

= 20 - 8

Length = 12 ft.

Summary:

The equation that models the situation: 240 = w^2 - 8w or w^2 - 8w = 240

The measure of the length = 12 ft.

The measure of the width = 20 ft.

Answer:

1/6

Step-by-step explanation:

1/6

The provided questions cover various aspects of a 2-period production economy, including the household's problem, firm's problem, market clearing conditions, Social Planner's Problem, competitive equilibrium, and welfare theorems.

(a) The Household's problem is to maximize its utility over two periods subject to its budget constraint. The household's problem can be formulated as follows:

Max U(Co, C1) = log(Co) + ß log(C1)

subject to the budget constraint:

Co + (1+r)C1 ≤ (1+r)Ko + W0 + W1,

where Co and C1 are consumption in period 0 and 1 respectively, ß is the discount factor, r is the interest rate, Ko is the initial capital endowment, W0 and W1 are the wages in periods 0 and 1 respectively.

(b) The Firm's problem is to maximize its profit by choosing the optimal combination of capital and labor. The firm's problem can be formulated as follows:

Maximize F(K, L) - RK - WL,

where F(K, L) is the production function, K is capital, L is labor, R is the rental rate of capital, and W is the wage rate.

(c) The market clearing conditions are:

Capital market clearing: K1 = (1 - δ)K0 + S - C0, where δ is the depreciation rate, S is savings, and C0 is consumption in period 0.

Labor market clearing: L = L0 + L1, where L0 and L1 are labor supplies in periods 0 and 1 respectively.

(d) The Social Planner's Problem is to maximize social welfare, which is the sum of the household's utility and the firm's profit. The Social Planner's Problem can be formulated as follows:

Maximize U(C0, C1) + F(K, L) - RK - WL,

subject to the production function F(K, L) and the market clearing conditions.

(e) A Competitive Equilibrium is a situation where all markets clear and agents (household and firm) make optimal decisions based on prices and market conditions. It is characterized by the following conditions:

Household's problem is solved optimally.

Firm's problem is solved optimally.

Market clearing conditions hold.

(f) To solve the Social Planner's Problem, we need to set up the Lagrangian and solve for the optimal values of consumption, capital, and labor. The Lagrangian can be written as:

L = U(C0, C1) + F(K, L) - RK - WL + λ1[(1+r)K0 + W0 + W1 - Co - (1+r)C1] + λ2[K1 - (1 - δ)K0 + S - C0] + λ3[L - L0 - L1],

where λ1, λ2, and λ3 are the Lagrange multipliers.

(g) To solve the Competitive Equilibrium, we need to determine the prices of capital (R) and labor (W) that clear the markets. This can be done by equating the demand and supply of capital and labor, and solving the resulting equations.

(h) The First Welfare Theorem states that under certain conditions, a competitive equilibrium is Pareto efficient. It implies that a competitive equilibrium is a socially optimal allocation of resources. To verify the theorem, we need to demonstrate that the competitive equilibrium allocation is Pareto efficient.

(i) The Second Welfare Theorem states that any Pareto efficient allocation can be achieved as a competitive equilibrium with appropriate redistribution of initial endowments.

To verify the theorem, we need to show that given an initial Pareto efficient allocation, we can find prices and redistribution of endowments that lead to a competitive equilibrium that achieves the same allocation.

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Answer:

923×10‐⁵

please mark brainlist

Answer:

9.23 x 10^-5

Step-by-step explanation:

To set up scientific notation you need to move the decimal point so there is a one digit other than zero in the first part (9.23). To do this you move the decimal point to the right 5 digits, accounting for the negative 5 (10^-5).

It's negative cause it's going right, if it was moving left it would be positive.

Answer:

y = 71

z = 18

x = 14

Step-by-step explanation:

Figure on the right is simply figure on the left but flipped on its side. we know this because the question tells us the shapes are congruent (which means equal, the same)

The correct answers are:

a. less a discount to yield 6.20%

d. plus a premium to yield 6.36%

Based on the provided information, the T bills maturing on August 2nd (8-2) are being offered at a bid yield of 6.36% and an ask yield of 6.20%.

To determine whether the T bills are being offered at a discount or a premium, we compare the bid yield and ask yield to the stated yields.

a. To yield 6.20% (ask yield), the T bills are being offered at a discount. Therefore, option a. "less a discount to yield 6.20%" is correct.

b. To yield 6.20%, the T bills are not being offered at a premium. Therefore, option b. "plus a premium to yield 6.20%" is incorrect.

c. To yield 6.36% (bid yield), the T bills are not being offered at a discount. Therefore, option c. "less a discount to yield 6.36%" is incorrect.

d. To yield 6.36%, the T bills are being offered at a premium. Therefore, option d. "plus a premium to yield 6.36%" is correct.

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The linearized equation for the non-linear equation z = x² + 4xy + 6xy² in the region defined by 8 ≤ x ≤ 10, 2 ≤ y ≤ 4 is given by :

z ≈ 244 + 20(x - 8) + 128(y - 2).

When using the linearized equation to calculate the value of z at x = 8, y = 2, the error is 0.

1.1. To linearize the equation in the given region, we need to find the partial derivatives of z with respect to x and y:

∂z/∂x = 2x + 4y

∂z/∂y = 4x + 6xy

At the point (x₀, y₀) = (8, 2), we substitute these values:

∂z/∂x = 2(8) + 4(2) = 16 + 8 = 24

∂z/∂y = 4(8) + 6(8)(2) = 32 + 96 = 128

The linearized equation is given by:

z ≈ z₀ + ∂z/∂x * (x - x₀) + ∂z/∂y * (y - y₀)

Substituting the values, we get:

z ≈ z₀ + 24 * (x - 8) + 128 * (y - 2)

1.2. To find the error when using the linearized equation to calculate the value of z at x = 8, y = 2, we substitute these values:

z ≈ z₀ + 24 * (8 - 8) + 128 * (2 - 2)

= z₀

Therefore, the linearized equation gives the exact value of z at x = 8, y = 2, and the error is 0.

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Answer:

77

Step-by-step explanation:

Based on the question, we can deduce the arrangement of the plants is in a form of a square. (Number of rows = Number of Columns).

In that case, the answer is very straightforward, just square root the number of plants to be planted:

\(\sqrt{5,929} \\= 77\)

This means there would be 77 rows of 77 plants per row.

The divergence of F is 2xyi - 15(2²-3x) 4+uy³k and the curl of F is -x²yi - 15u³k.

To find the divergence and curl of the vector field F(x, y, z) = x²yi - (2²-3x) 5+uy³k, we can use vector calculus operations.

The divergence of a vector field measures the rate of outward flow from an infinitesimally small region surrounding a point. It is calculated using the divergence operator (∇·F), which is the dot product of the gradient (∇) with the vector field F. In this case, the divergence of F can be found as follows:

∇·F = (∂/∂x)(x²yi) + (∂/∂y)(- (2²-3x) 5+uy³k) + (∂/∂z)(0)

      = 2xyi - 15(2²-3x) 4+uy³k

The curl of a vector field measures the rotation or circulation of the field around a point. It is calculated using the curl operator (∇×F), which is the cross product of the gradient (∇) with the vector field F. In this case, the curl of F can be found as follows:

∇×F = (∂/∂x)(0) - (∂/∂y)(x²yi) + (∂/∂z)(- (2²-3x) 5+uy³k)

      = 0 - x²yi - 15u³k

Therefore, the divergence of F is 2xyi - 15(2²-3x) 4+uy³k and the curl of F is -x²yi - 15u³k.

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The unit rate for every 1 student out of school, there are 10 students going to school is 10 students going to school per 1 student out of school

An equation is an expression that shows the relationship between two or more numbers and variables.

A unit rate is a ratio between two different units with a denominator of one.

If For every 1 student out of school, there are 10 students going to school, hence:

Unit rate = 10/1 = 10 students going to school per 1 student out of school

The unit rate for every 1 student out of school, there are 10 students going to school is 10 students going to school per 1 student out of school

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12 Cups of sugar will Quinn need to make 16 pies.

In the given question,

Quinn is baking sweet potato pies.

The table shows the ratio of cups of sugar to number of pies.

Number of Pies = 3                          5                            9

Cups of Sugar   = 1 and one half     2 and one half      4 and one half

We have to find the cups of sugar Quinn will need to make 16 pies.

From the given table we know that,

To make 3 sweet potato pies Quinn needed 1 and one half of cup. We can write it as

3 sweet potato pies = 1 1/2 Cups of sugar..................Equation 1

To make 5 sweet potato pies Quinn needed 2 and one half of cup. We can write it as

5 sweet potato pies = 2 1/2 Cups of sugar..................Equation 2

To make 9 sweet potato pies Quinn needed 4 and one half of cup. We can write it as

9 sweet potato pies = 4 1/2 Cups of sugar..................Equation 3

Since we have to find the cup of sugar needs for making 16 pies.

So as given we can see that when we add Equation 1 and 2.

We get

3 sweet potato pies + 5 sweet potato pies = 1 1/2 Cups of sugar + 4 1/2 Cups of sugar

(3+5) sweet potato pies = (1 1/2 + 4 1/2) Cups of sugar

Firstly we simplify the mixed fraction in fraction

We can convert 1 1/2 in fraction by multiplying 1 by 2 then add the result of multiplication of 1 and 2 by 1.

So we get 1 1/2 = 3/2

Now we convert 4 1/2 is in fraction. We can convert 4 1/2 in fraction by multiplying 4 by 2 then add the result of multiplication of 4 and 2 by 1.

So we get 4 1/2 = 9/2.

So 8 sweet potato pies = (3/2 + 9/2) Cups of sugar

8 sweet potato pies = (3+9)/2 Cups of sugar

8 sweet potato pies = 12/2 Cups of sugar

8 sweet potato pies = 6 Cups of sugar...................Equation 4

Multiply Equation 4 by 2

8×2 sweet potato pies = 6×2 Cups of sugar

16 sweet potato pies = 12 Cups of sugar

Hence, 12 Cups of sugar will Quinn need to make 16 pies.

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To find the measure of side OP, we need to use the concept of similarity between triangles.

When two triangles are similar, their corresponding sides are proportional. Let's denote the lengths of corresponding sides as follows:

KL = x

LM = y

NO = a

OP = b

Since triangles KLM and NOP are similar, we can set up a proportion using the corresponding sides:

KL / NO = LM / OP

Substituting the given values, we have:

x / a = y / b

To find the measure of side OP (b), we can cross-multiply and solve for b:

x * b = y * a

b = (y * a) / x

Therefore, the measure of side OP is given by (y * a) / x.

Please provide the lengths of sides KL, LM, and NO for a more specific calculation.

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Given,

A jet travels 6320 miles in 8 hours.

Flying with the wind, the same jet travels 5950 miles in 5 hours.

To find: The rate of the jet in still air, and the rate of the wind.

Solution:

The jet's velocity against the wind is

The jet's velocity with wind is

Let the velocity of the jet in still air be x miles per hour and velocity of wind be y miles per hour.

As such its velocity against wind is x-y and with wind is x+y and therefore

Solve both equations (1) and (2)

And

Hence, the velocity of the jet in still air is 990 miles per hour and the velocity of wind is 200 miles per hour.

Answer:

c) $5,350

Step-by-step explanation:

The difference between the commission and an attorney

Option C is correct

Answer:

C

Step-by-step explanation:

Answer:

9:17

Step-by-step explanation:

Answer: 9:17 am

Step-by-step explanation: I added all the minutes together and got 77 minutes. Then I simplified the 77 minutes into an hour and 17 minutes. Then I added the 1hour and 17minutes to 8:00 am.

Me das mas información porfa?

Answer:

2z+9

Step-by-step explanation:

(6z+2)+(7-4z)

Combine like term

6z-4z  + 2+7

2z+9

Answer:

11

Step-by-step explanation:

hope this helps with the work

Answer:

100 miles

Step-by-step explanation:

y=.55m+50 equation 1

y=.50m+55 equation 2

.55m+50=.50m+55 substitute value of y in equation 1 into equation 2

.05m=5

m=100

check answer by substituting 100 into both equations.

Y=.55(100)+50

y=55+50

y=105

y=.50m+55

y=.50(100)+55

y=50+55

y=105

Answer:

x = 88.2

Step-by-step explanation:

Reference angle = 10°

Opposite = x

Adjacent = 500

Apply TOA:

Tan 10° = x/500

Multiply both sides by 500

500*Tan 10° = x

88.1634905 = x

x = 88.2 (nearest tenth)