The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 5 to 6. If there were 2980 yes votes, what was the total
number of votes?
total votes

Answers

Answer 1

Answer:

Step-by-step explanation:

1008


Related Questions

If you borrow $120,000 at an APR of 7% for 25 years, you will pay $848.13 per month. If you borrow the same amount at the same APR for 30 years, you will pay $798.36 per month.

a. What is the total interest paid on the 25-year mortgage?

b. What is the total interest paid on the 30-year mortgage?

c. How much more interest is paid on the 30-year loan? Round to the nearest dollar.

d. If you can afford the difference in monthly payments, you can take out the 25-year loan and save all the interest from part c.
What is the difference between the monthly payments of the two different loans? Round to the nearest dollar.

Answers

The total interest paid on the 25-year mortgage is given as $134,439.

How to solve

If you borrow $120,000 at an APR of 7% for 25 years, you will pay $848.13 per month. If you borrow the same amount at the same APR for 30 years, you will pay $798.36 per month.

a. What is the total interest paid on the 25-year mortgage? $134,439.

Thus, it can be seen that the total interest paid on the 25-year mortgage is given as $134,439.

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Muons are unstable subatomic particles with a mean lifetime of 2.2 μs that decay to electrons. They are produced when cosmic rays bombard the upper atmosphere about 10 km above the earth’s surface, and they travel very close to the speed of light. The problem we want to address is why we see any of them at the earth’s surface.
Part A
What is the greatest distance a muon could travel during its 2.2 μs lifetime?
Express your answer with the appropriate units.

Answers

Greatest distance a muon could travel during its 2.2 μs lifetime is approximately 660 meters.

How to find the greatest distance a muon could travel during its 2.2 μs lifetime?

We'll use the formula:

distance = speed × time

Given that muons travel very close to the speed of light, we can approximate their speed with the speed of light (c), which is approximately 3.0 x 10⁸ meters per second (m/s). The mean lifetime of a muon is 2.2 μs, which is equal to 2.2 x 10⁻⁶ seconds.

Now we can plug the values into the formula:

distance = (3.0 x 10⁸ m/s) × (2.2 x 10⁻⁶ s)

distance = 6.6 x 10² meters

So, the greatest distance a muon could travel during its 2.2 μs lifetime is approximately 660 meters.

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Holly's Day Care has been in operation for several years. Identify each cost as variable (V), fixed (F), or mixed (M), relative to number of students enrolled. 1. Building rent 2. Toys. 3. Compensation of the office manager, who receives a salary plus a bonus based on number of students enrolled Afternoon snacks. 5. Lawn service contract at $200 a month. 6 Holly's salary. 7. Wages of afterschool employees. 8 Drawing paper for students' artwork. 9 Straight-line depreciation on furniture and playground equipment. 10. Fee paid to security company for monthly service.

Answers

Building rent: fixed cost, Toys: variable cost, Compensation of office manager: mixed cost, Afternoon snacks: variable cost, Lawn service cost at $200 a month: fixed cost, H's salary: fixed cost, Wages of after school employees: variable cost, Drawing paper for students' at work: variable cost, Straight-line depreciation on furniture and playground equipment: fixed cost, Fee paid to security company for monthly service: fixed cost.

Costs can be classified as fixed, variable, or mixed. Variable costs are those whose total dollar value vary according to the level of activity. A cost is considered constant if its overall sum does not change as the activity varies. Both fixed and variable costs have characteristics known as mixed or semi-variable costs.

Classify the given cost as fixed, variable or mixed costs:

1) Because building rent must be paid regardless of activity, it is a fixed expense.

2) The quantity of toys to be purchased is influenced by the number of children in H creche; as a result, this expense is variable.

It is a mixed cost because the office manager receives both a fixed salary and a variable incentive dependent on the number of children enrolled.

4) The cost of snacks is vary because it depends on how many kids are enrolled.

5) The contract is a pre-determined arrangement that is carried out regardless of the number of kids enrolled.

6) Because H must be given the consideration regardless of how many kids are registered in the creche, it is a fixed expense.

7) Since the number of children enrolled in creche would determine the amount of after-school personnel recruited, it is a variable expense.

8) Drawing paper purchases are variable costs because they depend on the number of registered youngsters.

9) Asset depreciation is periodically assessed, and it would be assessed even if there were no children enrolled.

10) The cost of the security service is fixed because it must be paid on a regular basis and is one of the expenses associated with operating the nursery.

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Let an = 8n/ 4n + 1.

Determine whether {an} is convergent.

Answers

The sequence aₙ = 8n / (4n + 1) is convergent, and its limit is 2.

To determine whether the sequence aₙ = 8n / (4n + 1) is convergent, we can examine its limit as n approaches infinity. Divide both the numerator and the denominator by the highest power of n, in this case, n:

aₙ = (8n / n) / ((4n / n) + (1 / n))

aₙ = (8 / 4 + 1 / n)

As n approaches infinity, 1/n approaches 0. Thus, we have:

aₙ = 8 / 4

aₙ = 2

Since the limit of the sequence exists and is equal to 2, we can conclude that the sequence is convergent.

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Three randomly chosen Michigan students were asked how many round trips they made to Canada last year. Their replies were 3, 4, 5. The geometric mean is
A. 3.877 B. 4.000 C. 3.915 D. 4.422

Answers

The geometric mean of a set of numbers is found by multiplying them all together and then taking the nth root, where n is the number of values. In this case, the three values are 3, 4, and 5. So, the geometric mean is the cube root of (3 x 4 x 5) which is 3.915. Therefore, the answer is C.


To find the geometric mean of the number of round trips made by the three Michigan students, we will use the formula:
Geometric Mean = (Product of the numbers)^(1/n)
Where n is the number of values.
In this case, the numbers are 3, 4, and 5, so we will calculate:
Geometric Mean = (3 * 4 * 5)^(1/3)
Geometric Mean = 60^(1/3)
Geometric Mean ≈ 3.915
Therefore, the correct answer is C. 3.915.

The geometric mean of a set of numbers is found by multiplying them all together and then taking the nth root, where n is the number of values. In this case, the three values are 3, 4, and 5. So, the geometric mean is the cube root of (3 x 4 x 5) which is 3.915. Therefore, the answer is C.

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Two quantities a and b are said to be in the "golden ratio" when the ratio of sum of the two quantities to the larger quantity equals the ratio of the larger quantity to the smaller quantity. That is, when a+b/a=a/b where a>b. a. Show that this implies b/a-b=a/bb. Now define Φ=a/b. Show that the quadratic equation Φ2−Φ−1=0, follows from the definition of golden ratio. Find the positive root of this quadratic equation.

Answers

This is the golden ratio, denoted by the Greek letter φ. It is approximately equal to 1.618.

To show that b/a-b=a/bb, we start from the equation a+b/a=a/b, which can be rearranged as follows:

[tex]a + b = a^2 / b[/tex]

Multiplying both sides by b yields:

[tex]ab + b^2 = a^2[/tex]

Subtracting ab from both sides gives:

[tex]b^2 = a^2 - ab[/tex]

Factoring out [tex]a^2[/tex] on the right-hand side gives:

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

Dividing both sides by ab yields:

b/a = a/(a-b)

Substituting Φ = a/b, we have:

1/Φ = Φ/(Φ - 1)

Multiplying both sides by Φ yields:

Φ^2 - Φ - 1 = 0

This is a quadratic equation in Φ. To solve for Φ, we can use the quadratic formula:

Φ = (1 ± sqrt(5))/2

The positive root is:

Φ = (1 + sqrt(5))/2

This is the golden ratio, denoted by the Greek letter φ. It is approximately equal to 1.618.

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Keng creates a painting on a rectangular canvas with a width that is four inches longer than the height, as shown in the diagram below. h+4 h
Write a polynomial expression, in simplified form, that represents the area of the canvas
Do NOT put any spaces in your answer ​

Answers

The polynomial expression that represents the area of the canvas is:

A = (h + 4)h

Where A is the area of the canvas, h is the height of the canvas, and (h + 4) is the width of the canvas.

Of 48 cars taking road worthiness test each of them had at least one fault in • brakes, lights, steering, 14 had faults in brakes only, 7 brakes and steering, 3 steering and light only,10 brakes and light 4 had fault in brakes, steering and lights.the number of cars that failed because of fault in steering equalled the number of cars that failed due to lights only. a Illustrate the information on a venn diagram b.how many cars had faulty lights. c. how many cars had only one fault​

Answers

In the given problem, having drawn a Venn diagram below, there were 6 cars with faulty lights and 13 cars with only one fault.

How to Solve the Problem?

a) Here is a Venn diagram illustrating the information given:

 _____B_____

       /     |     \

      /      |      \

     /       |       \

   BL       BS       SL

    / \      / \      / \

   /   \    /   \    /   \

  /     \  /     \  /     \

 B       S        L      None

  \     / \      / \      

   \   /   \    /   \    

    \ /     \  /     \    

     BS      BL      SL    

       \     |     /        

        \    |    /        

         \   |   /        

          ¯¯¯¯¯¯¯¯¯        

where B stands for brakes, S stands for steering, L stands for lights, BL stands for faults in brakes and lights, BS stands for faults in brakes and steering, SL stands for faults in steering and lights, and None stands for no faults.

b) To find the number of cars with faulty lights, we add up the numbers in the L and SL circles:

cars with faulty lights = L + SL = 3 + 3 = 6.

c) To find the number of cars with only one fault, we add up the numbers in the circles that represent faults in only one category:

cars with one fault = (B - BL) + (S - BS) + (L - BL - SL) = (14 - 4) + (0) + (10 - 4 - 3) = 13.

Therefore, there were 6 cars with faulty lights and 13 cars with only one fault.

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Last Help Please. hELP!

Answers

2 bananas + 1 apple = £1.16

1 banana + 1 apple = £0.71

=> 1 banana = 1.16 - 0.71 = £0.45

=> 1 apple = 0.71 - 0.45 = £0.26

Ans: £0.26

Ok done. Thank to me >:333

ANSWER THIS QUESTION QUICKLY PLS!
A committee of five people is formed by selecting members from a list of 10 people.
How many different committees can be formed?
Enter your answer in the box.

Answers

Answer:

How much is 100×4 please

two containers are used to hold liquid. these containers have exactly the same shape. the first container has a height of 12 m, and it can hold 48 m^3 of liquid. if the second container has a height of 30 m, how much liquid can it hold?

Answers

If the second container has a height of 30 m, the second container can hold 300 m³ of liquid.

Since the two containers have exactly the same shape, their volumes are proportional to the cubes of their corresponding dimensions. Let's denote the volume of the second container as V₂ and its height as h₂. Then we have:

(V₂ / V₁) = (h₂ / h₁)³

where V₁ and h₁ are the volume and height of the first container, respectively. Substituting the given values, we get:

(V₂ / 48) = (30 / 12)³

(V₂ / 48) = 2.5³

V₂ = 48 × 2.5³

V₂ = 300 m³

Therefore, the second container can hold 300 m³ of liquid.

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Make a number line and mark all the points that represent the following values of x.
x < 2 or x > -1

Answers

The number line for x < 2 or x >-1 has been drew.

What is number line?

A horizontal line with evenly spaced numerical increments is referred to as a number line. How the number on the line can be answered depends on the numbers present. The use of the number is determined by the question that it corresponds to, such as when graphing a point.

Here the given inequality is

x < 2  or x > -1.

We need to draw that in number line.

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should all organizations try to collect and analyze big data? why or why not? what management, organization, and technology issues should be addressed before a company decides to work with big data?

Answers

While big data can offer significant insights to businesses, organizations must assess their specific needs and capabilities before deciding to work with it. Once a decision is made, management, organizational, and technology issues must be addressed to ensure that the investment in big data .


Big data has become a buzzword in the world of business. It refers to massive amounts of structured and unstructured data that is generated by businesses on a daily basis. The potential insights that big data can offer is enormous, but it requires the right management, organization, and technology to handle it effectively.


If a company decides to work with big data, it must address several management, organization, and technology issues. For example, a management issue that must be addressed is the identification of key business objectives. It is important to understand the business problem that big data will help to solve.

From an organizational perspective, data governance is a crucial issue. Organizations must establish clear policies and procedures for collecting, storing, and analyzing data. They must also ensure that they have the right people with the necessary skills to handle big data.

From a technology perspective, organizations must invest in the right hardware and software to collect, store, and analyze big data. They must also ensure that they have the necessary security measures in place to protect the data.


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HELPPP! Which of the following is the distance between the two points shown?


2.5 units

3.5 units

−3.5 units

−2.5 units

Answers

Answer: 3.5 units

Step-by-step explanation:

We can count how many units the 2 points are away from each other and get 3.5

Or we can use the origin as a reference point, and since (-3,0) is 3 units away, and (0.5,0) is 0.5 units away. Adding the distances gives us 3.5 units

Answer is 3.5 units

Help please. I would appreciate it.

Answers

The Solution of the equations is shown below.

To check the equation we have substitute the values of ordered pair.

1. y = -2x + 6

at x= 3

y = -2(3) +6 = -6 + 6= 0

Thus, the solution is (3, 0)

2. y= 6-3x

At x = 3

y =6 -9 = -3

Thus, the solution is (3, -3)

3. y= -5x + 2

At x= -5

y= 15+ 2= 7

Thus, the solution is (-5, 7)

4. y = 10 - 4x

At x = -4

y= 10+ 16 = 26

Thus, the solution is (-4, 26)

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By writing each number correct to 1 significant figure, find an estimate for the value of
2.8 × 82.6
27.8-13.9

Answers

The value of the phrase to one significant figure is estimated to be 17.

To find an estimate for the value of the expression (2.8 × 82.6)/(27.8-13.9),

we can first perform the calculations using the given values to obtain a more precise answer, and then round the final result to one significant figure.

Using a calculator, we have:

(2.8 × 82.6)/(27.8-13.9) ≈ 16.63

Rounding this to one significant figure, we get:

(2.8 × 82.6)/(27.8-13.9) ≈ 17

Therefore, an estimate for the value of the expression to one significant figure is 17.

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For number 3, how do you get the answer? I don't get how you get those roots

Answers

The distance AB is 2√2 units.

The distance ST is 4√2 units.

How to calculate the distance between two points?

Distance between two points is the length of the line segment that connects the two points in a plane.

The formula to find the distance between the two points is usually given by d=√((x₂ – x₁)² + (y₂ – y₁)²)

For AB. We have:

A(1, 0) : x₁ = 1 , y₁ = 0

B(3, -2) : x₂ = 3 , y₂ = -2

d = √((3 – 1)² + (-2 – 0)²)

d = √8

d = √(4 * 2)

d = √4 * √2

d = 2 * √2

d = 2√2

Thus, the distance AB is 2√2

For ST. We have:

S(2, 3) : x₁ = 2 , y₁ = 3

T(6, -1) : x₂ = 6 , y₂ = -1

d=√((6 – 2)² + (-1 – 3)²)

d = √32

d = √(16 * 2)

d = √16 * √2

d = 4 * √2

d = 4√2

Thus, the distance ST is 4√2

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Help me find the area please and can you provide solving steps please!

Answers

The total area of the given figure is 55m² respectively.

What is the area?

The term "area" describes how much room a two-dimensional figure occupies.

The volume of a one-dimensional figure is zero.

A rectangle's area can be calculated by multiplying the figure's length and width or by counting each individual square unit.

The two words do in fact differ in some ways.

The word "area" denotes "space" on a surface, in a place, or elsewhere.

However, the word "place" communicates the idea of a "spot," or a specific area of space.

The primary distinction between the two words, namely area, and place, is this.

So, to find the area:

First, we will find the area of the triangle and then multiply the answer by 2 as there can be made 2 triangles one on each side.

Then, we will find the area of the rectangle and then add it to get the final answer.

Area of a triangle:

1/2 * b * h

1/2 * 4 * 5

2 * 5

10 * 2 (2 triangles)

20 m²

Area of the rectangle:
l * b

7 * 5

35 m³

Total area: 35 + 20 = 55m²


Therefore, the total area of the given figure is 55m² respectively.

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Goods bought for $1200 had to be sold off at a discount of 12%. What is the selling price?

Answers

To find the selling price after applying a discount of 12% to goods bought for $1200, we can follow these steps:

Step 1: Calculate the discount amount.

Discount Amount = 12% of $1200

Discount Amount = 0.12 * $1200

Discount Amount = $144

Step 2: Subtract the discount amount from the original price to get the selling price.

Selling Price = Original Price - Discount Amount

Selling Price = $1200 - $144

Selling Price = $1056

So, the selling price after applying a discount of 12% to goods bought for $1200 is $1056.

So do 1200 x 12%. And then subtract

Solve sin²(θ)=cos²(θ) for all θ in the interval [0,2π]

Answers

The solutions for sin²(θ) = cos²(θ) in the interval [tex][0, 2\pi ][/tex] are:

θ = [tex]\frac{\pi }{4}, \frac{\ 3\pi }{4}, \frac{\ 5\pi }{4}, and \ \frac{\ 7\pi }{4}[/tex].

Here, the given equation is :

sin²(θ)=cos²(θ)

Now, solving it to find the solution in the interval [tex][0, 2\pi ][/tex]

Using the identity: sin²(θ) + cos²(θ) = 1,

Substituting cos²(θ) for sin²(θ) in the above equation,

cos²(θ) + cos²(θ) = 1

On simplifying:

2cos²(θ) = 1

Dividing both sides by 2:

cos²(θ) = [tex]\frac{1}{2}[/tex]

Taking square root on both sides:

cos(θ) = ± [tex]\sqrt{\frac{1}{2} }[/tex]

So, we have two possible solutions for cos(θ):

cos(θ) = [tex]\sqrt{\frac{1}{2} }[/tex],cos(θ) = -  [tex]\sqrt{\frac{1}{2} }[/tex]

We can find the corresponding values of θ using the unit circle:

When cos(θ) = [tex]\sqrt{\frac{1}{2} }[/tex], θ = [tex]\frac{\pi }{4}[/tex] or θ = [tex]\frac{7\pi }{4}[/tex].

When cos(θ) = - [tex]\sqrt{\frac{1}{2} }[/tex], θ = [tex]\frac{3\pi }{4}[/tex] or θ = [tex]\frac{5\pi }{4}[/tex].

Therefore, the solutions for sin²(θ) = cos²(θ) in the interval [tex][0, 2\pi ][/tex] are:

θ = [tex]\frac{\pi }{4}, \frac{\ 3\pi }{4}, \frac{\ 5\pi }{4}, and \ \frac{\ 7\pi }{4}[/tex].

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Triangle KLM, with vertices K(2,5), L(6,3), and M(9,9), is drawn inside a rectangle, as shown below. What is the area, in square units, of triangle KLM?

Answers

The area of the triangle is given as  Area = 15.56 square units

What is a triangle?

Recall that a triangle is a three-sided polygon that consists of three edges and three vertices

We shall first find the sides of the triangle as follows

The distance KL = [tex]\sqrt{(3-5)^{2} + (6-2)^{2} }[/tex]

KL = [tex]\sqrt{(-2)x^{2} ^{2} + (4)^{2} }[/tex]

KL = [tex]\sqrt{4+16} = \sqrt{20}[/tex]

KL = 4.5

The distance KM = [tex]\sqrt{(5-9)^{2} + (2-9)x^{2} ^{2} } \\KM = \sqrt{(-7)^{2} + (-4)^{2} }[/tex]

KM = [tex]\sqrt{49+16} = \sqrt{65} = 8.1[/tex]

The distance LM = [tex]\sqrt{(3-9)^{2} + (6-9)^{2} } \\LM = \sqrt{-6^{2} + -3^{2} } \\LM = \sqrt{36+9 = \sqrt{45} } \\= 6.7[/tex]

Having determined all the three sides of the triangle, Let us use Hero's formula to determine the area of the triangle by

Area = [tex]\sqrt{s[(s-a)(s-b)(s-c)} \\[/tex]

where s = (a+b+c)/2

s= (4.5+8.1+6.7)/2

s= 19.32

s= 9.7

Applying the formula we have

Area = [tex]\sqrt{9.7[(9.7-4.5)(9.7-8.1)(9.7-6.7)}[/tex]

Area = [tex]\sqrt{9.7[(5.2)(1.6)(3)}[/tex]

Area = √242.112

Therefore the Area = 15.56 square units

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0.83 (repeating) as a percentage

i am hella confused

Answers

Answer:83.33%

Step-by-step explanation:

To convert a decimal to a percentage, we multiply by 100 and add the percent symbol.

0.83 (repeating) is equivalent to 0.833333... (where the 3s repeat indefinitely).

So to convert 0.833333... to a percentage, we multiply by 100:

0.833333... x 100 = 83.3333...

Rounding this to the nearest hundredth, we get:

83.33%

determine whether the series is convergent or divergent. [infinity] k = 1 k2 k2 − 4k 7a) Convergentb) DivergentIf it is convergent, find its sum. (If the quantity diverges, enter DIVERGES

Answers

To determine whether the series [infinity] k = 1 k2 k2 − 4k 7 is convergent or divergent, we can use the limit comparison test.

First, we note that k2 − 4k = k(k − 4), so the denominator of the terms in the series can be factored as k2(k − 4).

Next, we compare the series to the p-series ∑1/k2, which we know is convergent.

We take the limit as k approaches infinity of (k2/k2(k − 4)) = 1/(k − 4). This limit approaches 0 as k approaches infinity.

Therefore, by the limit comparison test, the series is convergent.

To find its sum, we can use the partial fraction decomposition:

1/(k2(k − 4)) = A/k + B/k2 + C/(k − 4)

Multiplying both sides by k2(k − 4), we get:

1 = A(k − 4) + Bk + Ck2

Plugging in k = 0 gives:

1 = -4A

So A = -1/4.

Plugging in k = 1 gives:

1 = -3A + B + C

So B + C = 13/12.

Plugging in k = 2 gives:

1/4 = -2A + B + 4C

So -8A + 4B + 16C = 1.

Solving this system of equations gives:

A = -1/4, B = 5/12, C = 1/3

Therefore, the sum of the series is:

∑ k = 1 to infinity 1/(k2(k − 4)) = ∑ k = 1 to infinity (-1/4k + 5/12k2 + 1/3(k − 4))

= (-1/4)∑ k = 1 to infinity 1/k + (5/12)∑ k = 1 to infinity 1/k2 + (1/3)∑ k = 1 to infinity 1/(k − 4)

= (-1/4)∞∑ k = 1 1/k + (5/12)π2/6 + (1/3)∞∑ k = 5 1/k

= (-1/4)ln(∞) + (5/72)π2 + (1/3)ln(∞)

= DIVERGES (since ln(∞) diverges to infinity)

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A sample of a radioactive isotope had an initial mass of 490 mg in the year 2006 and
decays exponentially over time. A measurement in the year 2008 found that the
sample's mass had decayed to 370 mg. What would be the expected mass of the
sample in the year 2012, to the nearest whole number?

Answers

The expected mass of the sample in the year 2012 is 280 grams

Given data ,

The exponential decay formula is given by:

N(t) = N0 * e^(-λt)

where:

N(t) is the remaining mass of the radioactive isotope at time t,

N0 is the initial mass of the radioactive isotope,

e is Euler's number (approximately equal to 2.71828),

λ is the decay constant of the radioactive isotope, and

t is the time elapsed since the initial measurement.

We know that the initial mass of the sample in 2006 was 490 mg, and the mass of the sample in 2008 was measured to be 370 mg

So , r = ( 490 / 370 )^1/2 - 1

On simplifying , we get

The exponential growth rate r = -13.103392 %

Now , the year = 2012 , t = 4 years

So , x₄ = 490 ( 1 + 13.10/100 )⁴

On simplifying , we get

x₄ = 279.4 grams

On rounding to the nearest whole number ,

x₄ = 280 grams

Hence , the amount of the sample left in 2012 is 280 grams

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The constant of proportionality is m=_

Answers

the slope goes by several names

• average rate of change

• rate of change

• deltaY over deltaX

• Δy over Δx

• rise over run

• gradient

• constant of proportionality

however, is the same cat wearing different costumes.

to get the slope of any straight line, we simply need two points off of it, let's use those two in the picture below

[tex](\stackrel{x_1}{3}~,~\stackrel{y_1}{48})\qquad (\stackrel{x_2}{8}~,~\stackrel{y_2}{128}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{128}-\stackrel{y1}{48}}}{\underset{\textit{\large run}} {\underset{x_2}{8}-\underset{x_1}{3}}} \implies \cfrac{ 80 }{ 5 } \implies \text{\LARGE 16}[/tex]

Prove the below statement.
If integers x and y where x < y are consecutive, then they have opposite parity.

Answers

Consecutive integers x and y with x < y have opposite parity because when one integer is even, the other must be odd, ensuring they are never both even or both odd.

To prove this statement, let's analyze even and odd integers. An even integer is defined as any integer that can be expressed as 2n, where n is an integer. An odd integer is defined as any integer that can be expressed as 2n + 1, where n is an integer.

Let x be an integer. If x is even, it can be expressed as 2n. The next consecutive integer, y, will be x + 1, which can be expressed as 2n + 1, making y odd. Conversely, if x is odd, it can be expressed as 2n + 1. The next consecutive integer, y, will be x + 1, which can be expressed as (2n + 1) + 1 = 2(n + 1), making y even.

Therefore, if x and y are consecutive integers with x < y, they will always have opposite parity.

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A school in new zeland collected data about the employment status of the mother and father in two parent-families. The two-way table of column relative frequencies below shows the data

Answers

A family where the family works part time is twice and likely as a family where the father is not working to have the mother work part time is true

We use the following representation:

FF ---> Father works full-time

FP ---> Father works part-time

FW ---> Father not working

MF --->Mother works full-time

MP ---> Mother works part-time

MW ---> Mother not working

Next, we test each of the 4 options, till one of the options is true (see attachment)

Choice A:

The claim in choice A is that:

P(FP and MP) = 2×P(FW and MP)

From the given table, we have:

P(FP and MP)= 2×P(FW and MP)

0.14=2×0.07

0.14=0.14

Hence, a family where the family works part time is twice and likely as a family where the father is not working to have the mother work part time

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now suppose that x ∼ binomial(n, p) and y ∼ bernoulli(p) are independent. what is the distribution of s = x y ? (justify.)

Answers

The PMF of s is:

[tex]P(s = 0) = (1-p)^n + (1-p)[/tex])

P(s = 1) = np(1-p)

The random variable s = xy can take on the values 0 or 1, depending on the values of x and y. We want to find the probability distribution of s.

We can start by finding the probability mass function (PMF) of s. For s = 0, we have:

P(s = 0) = P(xy = 0) = P(x = 0) + P(y = 0)

where the second equality follows from the fact that x and y are independent, so P(xy = 0) = P(x = 0)P(y = 0).

Using the PMF of x and y, we have:

P(s = 0) = P(x = 0) + P(y = 0)

= (1-p)^n + (1-p)

For s = 1, we have:

P(s = 1) = P(xy = 1) = P(x = 1)P(y = 1)

Using the PMF of x and y, we have:

P(s = 1) = P(x = 1)P(y = 1)

= np(1-p)

Therefore, the PMF of s is:

[tex]P(s = 0) = (1-p)^n + (1-p)[/tex])

P(s = 1) = np(1-p)

This distribution is called a mixture distribution, which is a combination of the Bernoulli and binomial distributions. We can see that when p = 0, s is always equal to 0, and when p = 1, s follows a binomial distribution with parameters n and p. When 0 < p < 1, s has a nontrivial mixture distribution.

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A telephone line hangs between two poles 14 m apart in the shape of the catenary y = 13 cosh(x/13) − 8, where x and y are measured in meters.
(b) Find the angle θ between the line and the pole.

Answers

To find the angle θ between the telephone line and the pole, we need to find the slope of the tangent to the catenary at the point where it meets the pole.

The slope of the tangent to the catenary at any point (x, y) is given by:

dy/dx = sinh(x/13)

At the pole, x = 0, and y = 13 - 8 = 5. So, the slope of the tangent to the catenary at the pole is:

dy/dx = sinh(0/13) = 0

This means that the tangent to the catenary at the pole is horizontal.

The angle θ between the telephone line and the pole is the angle between the horizontal and the line. So, we need to find the slope of the line.

The equation of the line passing through the two poles is:

y = mx + c

where m is the slope of the line and c is the y-intercept.

We know that the two poles are 14 m apart, so the x-coordinate of the second pole is 14. Let the y-coordinate of the second pole be y2. Then we have:

y2 = 13 cosh(14/13) - 8 = 45.685

The coordinates of the two poles are (0, 5) and (14, y2).

The slope of the line passing through these two points is:

m = (y2 - 5) / 14 = (45.685 - 5) / 14 = 2.913

So, the angle θ between the telephone line and the pole is:

θ = arctan(m) = arctan(2.913) = 1.234 radians = 1.234 * (180/π) ≈ 70.694 degrees (to 3 decimal places)

Therefore, the angle between the telephone line and the pole is approximately 70.694 degrees.

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To find the angle θ between the telephone line and the pole, we need to find the slope of the tangent to the catenary at the point where it meets the pole.

The slope of the tangent to the catenary at any point (x, y) is given by:

dy/dx = sinh(x/13)

At the pole, x = 0, and y = 13 - 8 = 5. So, the slope of the tangent to the catenary at the pole is:

dy/dx = sinh(0/13) = 0

This means that the tangent to the catenary at the pole is horizontal.

The angle θ between the telephone line and the pole is the angle between the horizontal and the line. So, we need to find the slope of the line.

The equation of the line passing through the two poles is:

y = mx + c

where m is the slope of the line and c is the y-intercept.

We know that the two poles are 14 m apart, so the x-coordinate of the second pole is 14. Let the y-coordinate of the second pole be y2. Then we have:

y2 = 13 cosh(14/13) - 8 = 45.685

The coordinates of the two poles are (0, 5) and (14, y2).

The slope of the line passing through these two points is:

m = (y2 - 5) / 14 = (45.685 - 5) / 14 = 2.913

So, the angle θ between the telephone line and the pole is:

θ = arctan(m) = arctan(2.913) = 1.234 radians = 1.234 * (180/π) ≈ 70.694 degrees (to 3 decimal places)

Therefore, the angle between the telephone line and the pole is approximately 70.694 degrees.

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The rate of change of y with respect to x is one-half times the value of y. Find an equation for y, given that y =-7 when x=0. You get: dy 1 2 = e0.5x-7 y =-7e0.5x

Answers

The equation for y (exponential function) is y = -7e⁰.⁵ˣ

What is an exponential function?

An exponential function is a mathematical function with the formula f(x) = ax, where "a" is a positive constant and "x" is any real number. The exponential function's base is the constant "a." Depending on whether the base is larger than or less than 1, the exponential function graph is a curve that rapidly rises or falls. In many branches of mathematics and science, the exponential function is employed to simulate growth and decay processes. Exponential functions can be used to simulate a variety of phenomena, including population expansion, radioactive decay, and compound interest.

The following is the equation for y:

y = -7e⁰·⁵ˣ

Given this, dy/dx = (1/2)y

X=0 causes Y=-7.

We can thus write:

dy/dx = (1/2)y

dy/y = (1/2)dx

By combining both sides, we obtain:

ln|y| = (1/2)x + C

where C is the integration constant.

X=0 causes Y=-7.

So,

ln|-7| = C

C = ln(7)

Therefore,

(1/2)x + ln(7) = ln|y|

|y| = e⁰·⁵ˣ+ ln(7)

y = -7e⁰·⁵ˣ

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