A toy train set has a circular track piece. The inner radius of the piece is 6 cm. One sector of the track has an arc length of 33 cm on the inside and 55 cm on the outside. What is the width of the track? *respost since people thought it would be funny to troll on my last. :/

Answers

Answer 1

The width of the toy train track is 4 cm.

To find the width of the toy train track, we need to consider the inner radius, the arc length of the inner sector, and the arc length of the outer sector.

Given:
Inner radius (r1) = 6 cm
Inner arc length (s1) = 33 cm
Outer arc length (s2) = 55 cm

Step 1: Find the central angle (θ) using the inner arc length and inner radius.
θ = s1/r1 = 33 cm / 6 cm = 5.5 radians

Step 2: Find the outer radius (r2) using the central angle and the outer arc length.
s2 = r2 × θ
55 cm = r2 × 5.5 radians
r2 = 55 cm / 5.5 radians = 10 cm

Step 3: Calculate the width of the track.
Width = Outer radius - Inner radius
Width = r2 - r1 = 10 cm - 6 cm = 4 cm

The width of the toy train track is 4 cm.

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Related Questions

At Olivia's Hats, 90% of the 80 hats are baseball caps. How many baseball caps are there?

Answers

pretty sure it’s 72

A pet store owner has huge aquarium tanks of the same size, A and B.


Tank A has 2 feet of water and is filled at a rate of 2. 2 inches per minute.


Tank B has 8 feet of water and is filled at a rate of 5 inches per minute.

Answers

Tank B fills faster than Tank A, taking approximately 1.75 minutes to fill while Tank A takes approximately 1.14 minutes.

How long will it take for each tank to completely drain?

The problem presents two aquarium tanks, A and B, which are of the same size but have different water levels and fill rates. Tank A has 2 feet of water and is being filled at a rate of 2.2 inches per minute, while Tank B has 8 feet of water and is being filled at a faster rate of 5 inches per minute. The goal is to determine how long it will take to fill each tank.

To solve this problem, we need to use the formula: Time = Volume / Rate. We know that the volume of each tank is the same, so we can set up two equations:

For Tank A: Time = (2 feet * 12 inches/foot) / 2.2 inches/minute = 10.91 minutes or approximately 1.14 minutes.

For Tank B: Time = (8 feet * 12 inches/foot) / 5 inches/minute = 19.2 minutes or approximately 1.75 minutes.

Therefore, Tank A will take approximately 1.14 minutes to fill, while Tank B will take approximately 1.75 minutes to fill. It is important to note that Tank B is being filled at a faster rate than Tank A, despite having a greater volume of water.

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Ron is seeking a loan wi th a simple in teres t ra te o f 7 % per year . he wan ts to borrow $4,500.

Answers

If Ron were to borrow $4,500 at a simple interest rate of 7% per year, he would be charged $315 in interest each year.

How to find the interest rate?

Ron is seeking a loan with a simple interest rate of 7% per year, which means that he will be charged 7% of the loan amount as interest each year. Ron wants to borrow $4,500, so to calculate the amount of interest he will be charged each year, we can use the following formula:

Interest = Principal x Rate x Time

In this formula, "Principal" refers to the loan amount, "Rate" refers to the interest rate as a decimal (so 7% would be 0.07), and "Time" refers to the length of time the loan will be outstanding, typically measured in years.

Since Ron is seeking a loan with a simple interest rate, we can assume that the interest will be calculated on an annual basis. So if Ron wants to borrow $4,500 at a simple interest rate of 7% per year, the amount of interest he will be charged each year would be:

Interest = $4,500 x 0.07 x 1

Interest = $315

Therefore, if Ron were to borrow $4,500 at a simple interest rate of 7% per year, he would be charged $315 in interest each year. It's important to note that this calculation assumes that Ron will not be making any payments on the loan during the year, and that the interest will be added to the principal amount at the end of the year. In practice, many loans are structured differently and may involve monthly payments or other terms.

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Last question find measure of arc Su

Answers

Check the picture below.

[tex]52x=\cfrac{154-50x}{2}\implies 104x=154-50x\implies 154x=154\implies x=\cfrac{154}{154} \\\\\\ x=1\hspace{9em}\stackrel{ 50(1) }{\widehat{SU}=50^o}[/tex]

How many grams of magnesium sulfate would be produced from the following reaction if 176 kJ of energy is absorbed by the reaction.


Al2(SO4)3 + 3 MgI2 → 2 AlI3 + 3 Mg(SO4) ΔH = +722 kJ

Answers

The amount of magnesium sulfate produced from the given reaction cannot be determined solely from the energy absorbed by the reaction.

Can the amount of magnesium sulfate produced from the reaction?

The given reaction is: Al2(SO4)3 + 3 MgI2 → 2 AlI3 + 3 Mg(SO4) and the enthalpy change for the reaction is ΔH = +722 kJ. The enthalpy change indicates that the reaction is endothermic, meaning that energy is absorbed by the reaction. The question asks about the amount of magnesium sulfate produced, which is not directly related to the energy absorbed by the reaction.

The balanced chemical equation shows that the reaction produces 3 moles of magnesium sulfate for every 3 moles of magnesium iodide consumed. Therefore, the amount of magnesium sulfate produced depends on the amount of magnesium iodide consumed.

To determine the amount of magnesium sulfate produced, we would need information about the amount of magnesium iodide consumed. The energy absorbed by the reaction does not provide enough information to determine the amount of magnesium sulfate produced.

In summary, the amount of magnesium sulfate produced from the given reaction cannot be determined solely from the energy absorbed by the reaction.

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Please hurry I need it ASAP

Answers

Answer:

[tex]3\sqrt{5}[/tex]

Step-by-step explanation:

Use the distance formula to determine the distance between the two points.

Distance = [tex]\sqrt{(1-4)^{2} + (4-(-2))^{2} }[/tex]

Simplify, and you get the answer.

[tex]3\sqrt{5}[/tex]

A die is rolled three times and a curious pattern emerges. On the first roll, the number is greater than 3. On the second roll, the under is greater than 4, and on the third roll, the number is greater than 5. If all three rolls are independent, what is the probability that this occurs?

Answers

Therefore, the probability of the curious pattern occurring is 1/36.

What is probability?

Probability theory is an important branch of mathematics that is used to model and analyze random phenomena, such as the outcomes of games of chance, the behavior of particles in physics, or the performance of complex systems in engineering. It has many practical applications in fields such as statistics, finance, economics, and computer science.

Here,

The probability of rolling a number greater than 3 on a fair die is 3/6 = 1/2, since there are three numbers (4, 5, 6) that satisfy this condition out of the six possible outcomes.

Similarly, the probability of rolling a number greater than 4 on a fair die is 2/6 = 1/3, and the probability of rolling a number greater than 5 is 1/6.

Since each roll is independent, we can multiply these probabilities together to get the probability that all three conditions are satisfied:

P = (1/2) × (1/3) × (1/6)

= 1/36

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Whats the volume of the rectangular prism 9in 3in 2in

Answers

Answer:

54

Step-by-step explanation:

9x 3 x2 =54

6
The expression √532 + 46√3 is equivalent to the expression r + p, where r and p are positive
integers. What is the value of r + p?

Answers

The value of r+p in the expression is  2(√133 + 23√3)

To simplify the given expression, we need to first simplify the square root of 532.

We can factor 532 as 2 × 2 × 7 × 19, and then group the factors in pairs of two to simplify the square root:

√532 = √(2 × 2 × 7 × 19) = √(2 × 2) × √(7 × 19)

= 2√(7 × 19)

= 2√133

Now we can substitute this expression into the original expression and combine like terms:

√532 + 46√3

= 2√133 + 46√3

= 2√133 + 2(23√3)

= 2(√133 + 23√3)


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A man buys a plot of agricultural land for rs. 300000 he sells 1/3rd at a loss of 20% and 2/5ths at a gain of 25% at what price must he sell the remaining land so as to make an overall profit of 10%

Answers

Let's first calculate the amount of money the man receives from selling 1/3rd of the land and 2/5ths of the land.

1/3 of the land is (1/3) * 300000 = 100000, and he sells it at a loss of 20%, which means he sells it for 100000 - (20/100) * 100000 = 80000.

2/5 of the land is (2/5) * 300000 = 120000, and he sells it at a gain of 25%, which means he sells it for 120000 + (25/100) * 120000 = 150000.

The total money he receives from selling 1/3rd and 2/5ths of the land is 80000 + 150000 = 230000.

He bought the land for Rs. 300000 and received Rs. 230000 from selling a portion of it. So, he still has Rs. 70000 worth of land left.

To make a profit of 10%, he needs to sell the remaining land for 300000 + (10/100) * 300000 = Rs. 330000.

The remaining land is worth Rs. 70000, so he needs to sell it for Rs. 330000 - Rs. 230000 = Rs. 100000.

Therefore, he must sell the remaining land for Rs. 100000 to make an overall profit of 10%.

The ages of the 5 officers for a school club are 18, 18, 17, 16, and 15. The proportion of officers who are younger


than 18 is 0. 6. The table displays all possible samples of size 2 and the corresponding proportion for each sample,


17, 16


17, 15


16


1


1


1


Sample n = 2 18, 18 18, 17 18, 17 18, 16 18, 16 18, 15 18, 15


Sample


0 0. 5 0. 5 0. 5 0. 5 0. 5 0. 5


Proportion


Using the proportions in the table, is the sample proportion an unbiased estimator?


Yes, the sample proportions are calculated using samples from the population.


Yes, the mean of the sample proportions is 0. 6, which is the same as the population proportion.


No, 0. 6 is not one of the possible sample proportions.


No, 70% of the sample proportions are less than or equal to 0. 5.

Answers

The correct answer is option 2. Yes, the mean of the sample proportions is 0.6, which is the same as the population proportion.

To determine if the sample proportion is an unbiased estimator, we need to check if the mean of the sample proportions equals the population proportion. In this case, the population proportion of officers who are younger than 18 is given as 0.6. The sample proportions for all possible samples of size 2 are calculated and given in the table.
To calculate the mean of the sample proportions, we add up all the proportions in the table and divide by the total number of samples, which is 9.
Mean of sample proportions = (0 + 0.5 + 0.5 + 0.5 + 0.5 + 0.5 + 1 + 1 + 1) / 9 = 0.6
Since the mean of the sample proportions equals the population proportion, we can say that the sample proportion is an unbiased estimator.

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what fraction is less greater than 1/2 and less than 4/5

Answers

A fraction that is greater than 1/2 and less than 4/5, we need to consider fractions between these two values. A fraction that is greater than 1/2 and less than 4/5 is 6/10.

Compare the two given fractions by finding a common denominator.
The lowest common denominator for 1/2 and 4/5 is 10.
Convert both fractions to equivalent fractions with a denominator of 10.
1/2 = 5/10
4/5 = 8/10
Identify a fraction between 5/10 and 8/10.
One possible fraction between these two is 6/10.
A fraction that is greater than 1/2 and less than 4/5 is 6/10.

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describe the sequence of transformations that could verify that the two triangles f and c are similar. give detail on each transformation. ​

Answers

The transformation that  verify that the two triangles f and c are similar are

RotationTranslationDilation

How to map the transformation of F to C

Rotation: The first procedure is rotating triangle C with center art vertex (-9, 2) counterclockwise 90 degrees

Translation: In this case, the triangle is to the right 1 unit and 2 units up

Dilation: The dilation factor here is 2. Using the vertex of of the point which is (-8, 0) as the center, dilate with a scale factor of two

The transformations described moves triangle F to triangle C

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Let x, y, and z represent three rational numbers, such that y is 512 times x and z is 50. 25 more than x. If y=15. 5, what is the value of z?

Answers

If x, y, and z represent three rational numbers, such that y is 512 times x and z is 50. 25 more than x and y = 15.5 , then value of z = 50.280.

Let x, y, and z represent three rational numbers, such that y is 512 times x and z is 50.25 more than x. If y = 15.5, the value of z can be found as follows:

Find the value of x.
Since y is 512 times x, we have the equation:
y = 512x
Substitute y with 15.5:
15.5 = 512x

Now, divide both sides by 512 to find x:
x = 15.5 / 512
x ≈ 0.0302734375

Find the value of z.
Since z is 50.25 more than x, we have the equation:
z = x + 50.25
Substitute x with the value we found (x = 0.0302734375):
z ≈ 0.0302734375 + 50.25
z ≈ 50.2802734375

So, the value of z is approximately 50.2802734375.

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Which sequence of transformations could triangle XYZ have
gone through to produce figure XYZ as shown to the right?
A Rotation 90° clockwise, translation 4 units up and 3 units right.
B. Rotation 90° counterclockwise, translation 3 units up and 4
units right.
C. Rotation 90° clockwise, reflection across the y-axis
D. Rotation 90° counterclockwise, reflection across the y-axis.
Z
YA
X'
A

Answers

The sequence of transformations the triangle XYZ have gone through to produce figure X'Y'Z' is: D. Rotation 90° counterclockwise, reflection across the y-axis.

What is transformation?

Transformation is a method required to change the orientation, or resize a given object to produce its image. Some of the types of transformation are: rotation, reflection, dilation, and translation.

Rotation requires turning a given object about a point at a certain angle.

Reflection implies flipping an object over a line as a reference point.

Dilation deals with either increasing or decreasing the dimensions of a given object.

Translation involves moving an object in a specific direction and given number of units.

Considering triangle XYZ and the figure produced, we can conclude that:

The sequence of transformations the triangle XYZ have gone through to produce figure X'Y'Z' is: D. Rotation 90° counterclockwise, reflection across the y-axis.

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A large moving box has a volume of 45 cubic meters. The width of the box is 1. 5 meters. The length and height of the box are each whole number measurements that are greater than 2 meters. What could be the dimensions of the box? Give TWO possible answers

Answers

If A large moving box has a volume of 45 cubic meters then two possible sets of dimensions for the box are: 1.5 m x 5 m x 9 m, and 1.5 m x 3 m x 15 m.

One possible way to approach this problem is to use trial and error. Therefore, two possible sets of dimensions for the box are 1.5 m x 5 m x 9 m, and 1.5 m x 3 m x 15 m.

We know that the volume of the box is 45 cubic meters and that the width is 1.5 meters. We want to find two whole numbers for the length and height that work.

We can start by listing the factors of 45: 1, 3, 5, 9, 15, and 45. We can then try each of these factors as the length or height, and see if the other dimension is a whole number greater than 2.

For example, if we try length = 5, then the height would need to be 9 to get a volume of 45. However, the width would be 1.5, which is already less than 2, so this doesn't work. These are the dimensions.

Trying again, if we try length = 9, then the height would need to be 5 to get a volume of 45. In this case, the width would be height = 5, which is greater than 2, so this is a possible answer.

Continuing, if we try length = 3, then the height would need to be 15 to get a volume of 45. This gives us a width of 1.5, which is less than 2, so this doesn't work.

Finally, if we try length = 15, then the height would need to be 3 to get a volume of 45. This gives us a width of height = 3, which is greater than 2, so this is another possible answer.

Therefore, two possible sets of dimensions for the box are: 1.5 m x 5 m x 9 m, and 1.5 m x 3 m x 15 m.

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A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 5% vinegar, and the second brand contains 8% vinegar. The chef wants to make 300 milliliters of a dressing that is 7% vinegar. How much of each brand should she use?



First Brand: ?


Second Brand: ?

Answers

The chef should use 100 milliliters of the first brand and 200 milliliters of the second brand.

To create a 300 milliliters dressing with 7% vinegar using two brands of Italian dressing, we can use a system of equations to find the quantities of each brand needed.

Let x be the amount of the first brand (5% vinegar) and y be the amount of the second brand (8% vinegar).

First equation (total volume):
x + y = 300

Second equation (vinegar percentage):
0.05x + 0.08y = 0.07 * 300

Now, solve the system of equations:

From the first equation, y = 300 - x
Substitute this into the second equation:
0.05x + 0.08(300 - x) = 21

Expand and simplify:
0.05x + 24 - 0.08x = 21
0.03x = -3

Now, divide by 0.03:
x = 100

Now, find the value of y:
y = 300 - x = 300 - 100 = 200

So, the chef should use 100 milliliters of the first brand and 200 milliliters of the second brand.

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Aside from beautiful places, Tagaytay is also known for its
pasalubong items. Rowena's offers different tarts: (Buko, Ube, Pineapple, Yema
and Mango). A box of tart contains 9 pieces and you are allowed to have a
maximum of three different flavors per box, how many different combinations
are there?
a. There is only one flavor Solution:
How many fiavors are there?
b. There are two flavors Solution:
How many different flavors can you pair with Buko?
How many different flavors can you pair with Ube?
How many combinations of two flavors are there?
c. There are three flavors Solution:
How many different flavors can you pair with Ube?
How many different flavors can you pair with Pineapple and Ube?
How many different flavors can you pair with Ube and Mango?
How many combinations of three different flavors are there?​

Answers

There are 5 combinations with one flavor, 10 combinations with two flavors, and 10 combinations with three flavors, resulting in 25 possible combinations in total.

a. Only one flavor is there.

b. Buko can be paired with 4 other flavors and Ube can be paired with 3 remaining flavors.

c. 10 combinations of three flavors.



a. There is only one flavor: Since the box contains only one flavor, there are 5 possible combinations (Buko, Ube, Pineapple, Yema, and Mango).

b. There are two flavors:
- Buko can be paired with 4 other flavors (Ube, Pineapple, Yema, Mango).
- Ube can be paired with 3 remaining flavors (Pineapple, Yema, Mango).
- Pineapple can be paired with 2 remaining flavors (Yema, Mango).
- Yema can be paired with 1 remaining flavor (Mango).
In total, there are 10 combinations of two flavors.

c. There are three flavors:
- There are 5 flavors in total, and we want to choose 3. We can use the formula for combinations: C(n, k) = n! / (k!(n-k)!), where n is the total number of flavors and k is the number of flavors to choose.
- C(5, 3) = 5! / (3!(5-3)!) = 10 combinations of three flavors.

So, there are 5 combinations with one flavor, 10 combinations with two flavors, and 10 combinations with three flavors, resulting in 25 possible combinations in total.

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The drawing shows a bridge design. the measurement of angle 1 is 125°. the measurement of angle 1 and angle 2 equal 180°. classify the relationship between angle 1 and 2, then find the measurement of angle 2.

Answers

The measurement of angle 2 is 55°, if the measurement of angle 1 and angle 2 equal 180° and measurement of angle 1 is 125° in the drawing of the bridge design.

The measurement of angle 1 is 125°, and the sum of angle 1 and angle 2 is 180°. The relationship between angle 1 and angle 2 is supplementary since their sum is equal to 180°. To find the measurement of angle 2,

Recall the given information: angle 1 = 125°, and angle 1 + angle 2 = 180°.Set up an equation using the supplementary relationship: 125° + angle 2 = 180°.Subtract 125° from both sides of the equation: angle 2 = 180° - 125°.Calculate the result: angle 2 = 55°.

Therefore, angle 2 has a measurement of 55°.

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A marine biologist is researching the population density of manatees. The marine biologist counts 550 manatees within a radius of 5 miles of a half circle off of Crystal Bay. What is the population density of the manatees? Use 3. 14 for pi, and round to the nearest whole number

Answers

The population density of manatees within a radius of 5 miles of a half circle off of Crystal Bay is approximately 14 manatees per square mile

The population density of manatees within a radius of 5 miles of a half circle off of Crystal Bay is approximately 70 manatees per square mile. To calculate this, we first need to find the area of the half circle. Using the formula for the area of a circle, A=πr^2, where r is the radius, we can find the area of the full circle with a radius of 5 miles:

A = 3.14 x 5^2
A = 78.5 square miles

Since we only want to consider the area of the half circle, we divide this by 2:

A = 78.5 / 2
A = 39.25 square miles

Now we can calculate the population density by dividing the number of manatees by the area:

Density = 550 / 39.25
Density ≈ 14

Therefore, the population density of manatees within a radius of 5 miles of a half circle off of Crystal Bay is approximately 14 manatees per square mile. Rounded to the nearest whole number, this is 14.

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A circle is placed in a square with a side length of 8 m, as shown below. Find the area of the shaded region.

Use the value 3.14 for pi, and do not round your answer. Be sure to include the correct unit in your answer.

Answers

The area of the shaded region is the expression 16(4 - π) square metres.

How to evaluate for the shaded region

The shaded region is the remaining area in the square which is outside the circle, so it is derived by subtracting the area of the circle from the area of the square as follows:

area of the square = 8 m × 8 m

area of the square = 64 m²

area of the circle = π × 4 m × 4 m

area of the circle = 16π m²

area of the shaded region = 64 m² - 16π m²

area of the shaded region = 16(4 - π) m²

Therefore, the area of the shaded region is the expression 16(4 - π) square metres.

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How do I find the value of X

Answers

Answer:

x = 30

Step-by-step explanation:

you can find it by vertical opposite angle which is their non adjecent angle are equal.

2x- 30 = 30

2x = 30 + 30 ..... take 30 to the left it change sighn

2x /2 = 60 / 2 ..... divided both side by 3

x = 30 ..... so the unknown no. is 30

Will mark brainliest two points on k are (-4, 3) and (2, -1).
write a ratio expressing the slope of k.

Answers

The ratio expressing the slope of line k is -2/3.

The ratio expressing the slope of k can be found by using the slope formula, which is: slope = (y₂ - y₁) / (x₂ - x₁), where (x₁, y₁) and (x₂, y₂) are the two given points on the line.

Plugging in the given values, we get:

slope = (-1 - 3) / (2 - (-4))

slope = -4 / 6

slope = -2/3

Therefore, the slope of the line passing through the two given points is -2/3.

To express this slope as a ratio, we can write it as:

-2:3

which means that for every decrease of 2 units in the y-coordinate, there is a corresponding decrease of 3 units in the x-coordinate.

This ratio can also be written as 2: -3 to indicate that for every increase of 2 units in the y-coordinate, there is a corresponding decrease of 3 units in the x-coordinate.

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Find the Riemann sum S₅ for the following information. Round your answer to the nearest hundredth. f(x) = 64 - x²; [a, b] = (-8, -3]; n = 5.c₁ = -7.5.c² = -6.5.c₃ = -5.5.c₄ = - 4.5.c₅ = -3.5

Answers

The Rounding to nearest hundredth, we get S₅ ≈ -12.25

How to find the Riemann sum S₅?

The formula for a Riemann sum with n subintervals is:

[tex]S_n[/tex]= ∑ᵢ₌₁ⁿ f(cᵢ) Δx,

where Δx = (b - a)/n is the width of each subinterval and cᵢ is a point in the i-th subinterval. The value of cᵢ can be chosen arbitrarily, but here we are given specific values for c₁, c₂, c₃, c₄, and c₅.

In this problem, we have:

f(x) = 64 - x²

[a, b] = (-8, -3]

n = 5

Δx = (b - a)/n = (-3 - (-8))/5 = 1

Therefore, the width of each subinterval is 1.

The Riemann sum S₅ is:

S₅ = f(c₁) Δx + f(c₂) Δx + f(c₃) Δx + f(c₄) Δx + f(c₅) Δx

Substituting the given values for c₁, c₂, c₃, c₄, and c₅, we get:

S₅ = f(-7.5) + f(-6.5) + f(-5.5) + f(-4.5) + f(-3.5)

where f(x) = 64 - x².

Evaluating each term, we get:

f(-7.5) = 64 - (-7.5)² = 17.75

f(-6.5) = 64 - (-6.5)² = 5.75

f(-5.5) = 64 - (-5.5)² = -2.75

f(-4.5) = 64 - (-4.5)² = -12.25

f(-3.5) = 64 - (-3.5)² = -20.75

Therefore,

S₅ = 17.75(1) + 5.75(1) - 2.75(1) - 12.25(1) - 20.75(1) = -12.25.

Rounding to the nearest hundredth, we get S₅ ≈ -12.25.

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Find the area of the surface extending upward from the circle x^2 + y^2 = 1 in the cy-plane to the plane z = 2 - x - y.

Answers

The area of the surface is π square units.

We can use a surface integral to find the area of the surface. The surface integral of a scalar function f over a surface S is given by:

∬S f dS

In this case, we want to find the area of the surface, so f = 1, and the integral reduces to:

∬S dS

We can parameterize the surface S using cylindrical coordinates:

x = r cosθ

y = r sinθ

z = 2 - r cosθ - r sinθ

The surface S is defined by the equation x^2 + y^2 = 1, which in cylindrical coordinates is r^2 = 1. Therefore, the surface integral becomes:

∬S dS = ∫∫R ||rθ|| dr dθ

where R is the region in the rθ-plane that corresponds to the surface S.

To find the limits of integration for r and θ, we need to determine the bounds of the region R. Since r^2 = 1, we have r = 1 for all θ. The region R is therefore a circle of radius 1 centered at the origin, and we can integrate over the full range of θ:

∫0^2π ∫0^1 r dr dθ = π

Therefore, the area of the surface is π square units.

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Given y= Vx. Find dx dy when y = 8 and dt/dx = 1.75 . (Simplify your answer.)

Answers

To find dx dy, we need to take the derivative of y with respect to x. Using the chain rule, we have:

dy/dx = d(Vx)/dx = V * d(x)/dx + x * d(V)/dx

Since we are given y = Vx, we can substitute and simplify:

dy/dx = y/x * d(V)/dx + V

Now we can plug in the given values: y = 8, dt/dx = 1.75. We also need to find V:

y = Vx, so V = y/x = 8/x

Now we can substitute and simplify again:

dy/dx = 8/x * d(V)/dx + 8/x

We need to find d(V)/dx. We know that t = f(x,V), so we can use the chain rule again:

dt/dx = df/dx + df/dV * dV/dx

Since t and V are independent, df/dV = 0. So we have:

dt/dx = df/dx + 0 * dV/dx

dt/dx = df/dx

We also know that dt/dx = 1.75. Therefore:

1.75 = df/dx

Now we can find d(V)/dx:

d(V)/dx = d/dx (y/x) = (dy/dx * x - y * dx/dx) / x^2

Since y = 8, we have:

d(V)/dx = (dy/dx * x - 8) / x^2

Substituting what we know, we get:

d(V)/dx = (8/x * 1.75 - 8) / x^2 = 8(1.75 - x) / x^3

Now we can substitute everything into the formula we derived earlier:

dy/dx = 8/x * d(V)/dx + 8/x

dy/dx = 8/x * (8(1.75 - x) / x^3) + 8/x

Simplifying, we get:

dy/dx = 14/x^2 - 1.75

Therefore, when y = 8 and dt/dx = 1.75, dx/dy = 1/(dy/dx) is:

dx/dy = 1 / (14/x^2 - 1.75) = x^2 / (14 - 1.75x^2)
Given y = √x, we first need to find dy/dx, the derivative of y with respect to x. Using the power rule, we can rewrite y = x^(1/2), and the derivative will be:

dy/dx = (1/2)x^(-1/2)

Now, we are given that y = 8, so we need to find the corresponding value of x:

8 = √x
64 = x

Next, we are given dt/dx = 1.75. We need to find dt/dy, which can be calculated by taking the reciprocal of dy/dx:

dt/dy = 1 / (dy/dx)

Now, we substitute x = 64 into the derivative:

dy/dx = (1/2)(64)^(-1/2) = (1/2)(8)^(-1) = 1/16

Finally, we can find dt/dy by taking the reciprocal of dy/dx:

dt/dy = 1 / (1/16) = 16

So, the value of dt/dy when y = 8 and dt/dx = 1.75 is 16.

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Mark and Diane pay a rate of 43. 7 mills in property tax. The assessed value of the home is $74,000. What is their property tax?

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Mark and Diane's property tax is $3,231.80.

To calculate the property tax for Mark and Diane, we need to multiply the assessed value of their home by the tax rate.

First, we need to convert the tax rate from mills to a decimal. One mill is equal to one-tenth of one cent or 0.001 dollars. Therefore, 43.7 mills is equal to 0.0437 dollars.

Next, we can calculate the property tax as follows:

Property tax = Assessed value × Tax rate

Property tax = $74,000 × 0.0437

Property tax = $3,231.80

Therefore, Mark and Diane's property tax is $3,231.80.

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The figure below has semicircles on each side of a 40 meter by 40 meter square. Find the area of the enclosed figure. Round to the nearest tenth

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The area enclosed by the circle is given as 7494.12 m² and the mistake Frank have made is he subtracted the area of the square and the area of 4 semi-circles.

We are given that the figure is made by attaching semicircles to each side of a 54 dash m​-by-54 dash m square. Frank says the area is 1 comma 662.12 m squared.

We have to find the error made by Frank,

Area of the square = Side of the square x Side of the square

In the question; the side of the square given is 54 m and this would also be the diameter of the semicircle attached to each side of a square.

So, the radius of the semicircle = diameter /2  = 54/2 = 27 m

Now, the area of the square = 54 x 54 = 2916 m².

Also, the area of the semi-circle = [tex]\frac{\pi r^2}{2}[/tex] = [tex]\frac{3.14*27^2}{2}[/tex] = 1144.53 m² .

As there are a total of 4 semi-circles attached to the square, so the area of all the 4 semi-circles = 4 x 1144.53  = 4578.12

Now, the total area of the figure = Area of the square + Area of 4 semi-circles

                = 2916 + 4578.12

                = 7494.12 m².

The error made by Frank was that he subtracted the area of the square and the area of 4 semi-circles to find the area of the whole figure as (4578.12  - 2916  = 1662.12 ).

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Complete question:

Frank needs to find the area enclosed by the figure. The figure is made by attaching semicircles to each side of a 54 m​-by-54 m square. Frank says the area is 1662.12 meter squared. Find the area enclosed by the figure. Use 3.14 for pi. What error might Frank have​ made?

A large box of chocolates has a width that is 2 times the height of the box and a length that is 1. 5 times the width of


the box. Each of the 48 chocolates rests in a cube with a side length of 1 inch

Answers

Let's start by using algebra to represent the relationships between the dimensions of the box:

   Let h be the height of the box.    Then the width of the box is 2h (since it is 2 times the height).    And the length of the box is 1.5 times the width, so it is 1.5(2h) = 3h.

So the dimensions of the box are: height = h, width = 2h, length = 3h.

Now let's find the volume of the box:

   Volume = height x width x length    Volume = h x 2h x 3h    Volume = [tex]6h^3[/tex]

Since we know that each chocolate rests in a cube with a side length of 1 inch, the volume of each chocolate is [tex]1^3 = 1[/tex] cubic inch. So the total volume of all 48 chocolates is 48 cubic inches.

Therefore, we can set up an equation to solve for h:

  [tex]48 = (6h^3) / (1 cubic inch/chocolate)[/tex]

[tex]48 = 6h^3[/tex]

[tex]8 = h^3[/tex]

   h = 2

So the height of the box is 2 inches, the width is 4 inches (since it is 2 times the height), and the length is 6 inches (since it is 1.5 times the width).

To check our work, we can calculate the volume of the box:

   Volume = height x width x length

   Volume = 2 x 4 x 6

   Volume = 48 cubic inches

This matches the total volume of all  48 chocolates, so we can be confident in our answer.

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Solve for x trigonometry

Answers

Answer:

Set your calculator to degree mode.

tan(37°) = x/8

x = 8tan(37°) = 6.03

For the given triangle the required value of the x is approximately 6.02 units.

Use the concept of triangle defined as:

A triangle is a three-sided polygon, which has three vertices and three angles which has a sum of 180 degrees.

In the given triangle:

One angle is 37°

Adjacent side = 8 cm

Perpendicular = x

Since we know that,

Tan θ = opposite/adjacent

Therefore,

Tan 37° = x/8

Since Tan 37° ≈ 0.753

Then, 0.753  ≈  x/8

x ≈ 6.02 units

Hence,

The required value of x is approximately 60.2 units.

 

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