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what is the mean absolute deviation for doctor a’s data set on corrective lenses? what is the mean absolute deviation for doctor b’s data set on corrective lenses? write a sentence comparing the variation of the two data sets using their mean absolute deviations.

The prediction for the number of times the event of landing on an even number in 550 rolls is 275

From the question, we have the following parameters that can be used in our computation:

The number of times = 550

The sample space of a fair 6-sided die is

S = {1, 2, 3, 4, 5, 6}

And as such the even numbers are

Even = {2, 4, 6}

This means that in a fair 6-sided die, we have

P(Even) = 3/6

When evaluated, we have

P(Even) = 1/2

So, when the die is rolled 550 times, we have

Expected value = 1/2 * 550

Evaluate

Expected value = 275

Hence, the number of times is 275

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PA is tangent to circle k(O), ∠OAP is a right angle. Similarly, ∠OBP is a right angle.

To prove that m∠P=2·m∠OAB, we need to use the properties of tangents to a circle and the angle relationships between tangent lines and chords in a circle.

First, let's draw a diagram of the situation:

              P

             / \

            /   \

           /     \

          /       \

         /         \

       A-----------B

       /               \

      /                  \

     /                     \

    O                      \

    |                          \

    |                            \

    |                              \

    ----------------------------

We are given that PA and PB are tangents to circle k(O) at A and B, respectively. This means that PA and PB are perpendicular to OA and OB, respectively, at the points of tangency A and B. We can also infer that OA and OB are radii of the circle k(O).

Let ∠OAB = x. Then, ∠OBA = x (since OA = OB), and ∠APB = 180° - ∠OAB - ∠OBA = 180° - 2x.

Since PA is tangent to circle k(O), ∠OAP is a right angle. Similarly, ∠OBP is a right angle. Therefore, ∠OAP + ∠OBP = 180°.

Let ∠P = y. Then, we have:

∠OAB + ∠OBA + ∠APB + ∠P = 180°

x + x + (180° - 2x) + y = 180°

y = 2x

Therefore, we have shown that m∠P = 2·m∠OAB, as required.

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A line segment of length 15 cm at a bearing of 50° from P to locate the position of Q on the drawing. Use the Law of Cosines the distance d between Q and L, which is approximately 71.2 km. Use the Law of Sines the angle x opposite d, which is approximately 29.5°, giving the bearing of Q from L.

Using the given scale of 1 cm represents 3 km, we can draw a line segment of length 15 cm (since 5 km/h x 12 h = 60 km) on a bearing of 50° from P to locate the position of Q. The point Q can be marked on the drawing using the x tool.

We can use the Law of Cosines to find the distance d between Q and L. Let a = 60 km (distance from P to Q), b = 36 km (distance from P to L), and C = 130° (the angle between a and b, which is equal to the sum of the angles at Q and L). Then

d² = a² + b² - 2ab cos(C)

d² = (60)² + (36)² - 2(60)(36)cos(130°)

d ≈ 71.2 km

Therefore, the distance of port Q from lighthouse L is approximately 71.2 km.

We can use the Law of Sines to find the angle x opposite the distance d between Q and L. Let a = 60 km (distance from P to Q), b = 36 km (distance from P to L), and sin(A) = sin(130°)/d. Then

sin(x)/60 = sin(130°)/d

sin(x) = (60/d)sin(130°)

x ≈ 29.5°

Therefore, the bearing of port Q from lighthouse L is approximately 29.5°.

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The exact volume of the composite figure with a cylinder of height and diameter 3.5 feet and a hemisphere on top is 49.92 cubic feet.

To find the volume of the composite figure, we need to add the volumes of the cylinder and the hemisphere on top of it.

The formula for the volume of a cylinder is:

V_cylinder = π[tex]r^2[/tex]h

where r is the radius of the cylinder and h is its height.

The formula for the volume of a hemisphere is:

V_hemisphere = (2/3)π[tex]r^3[/tex]

where r is the radius of the hemisphere.

In this case, the diameter of the cylinder is given as 3.5 feet, so the radius is half of that, or 1.75 feet. The height of the cylinder is also given as 3.5 feet. Therefore, the volume of the cylinder is:

V_cylinder = π(1.75[tex])^2[/tex](3.5) ≈ 32.67 cubic feet

To find the volume of the hemisphere, we need to first find its radius. Since the diameter of the cylinder is also the diameter of the hemisphere, the radius of the hemisphere is also 1.75 feet. Therefore, the volume of the hemisphere is:

V_hemisphere = (2/3)π(1.75[tex])^3[/tex] ≈ 17.25 cubic feet

Finally, we add the volumes of the cylinder and hemisphere to get the total volume of the composite figure:

V_total = V_cylinder + V_hemisphere

≈ 32.67 + 17.25

= 49.92 cubic feet

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The conic section formed when a plane intersects the central axis of a double-napped cone at a 90° angle is circle.

The conic curve refers to the intersection of right circular cone via the plane. The shape of conic sections are determined by the location of the plane that intersects or divides the angle of intersection and cones.

These can be of four types, parabola, circle, ellipse and hyperbola. The conic curves find application in daily life such as mirrors, satellites, telescopes and other similar devices.

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Answer:circle A.

Step-by-step explanation:

Answer:

In an isosceles right triangle, the length of the diagonal is √2 times the length of a leg.

c = 6√2 in. = 8.5 in.

The area for the first shape is  16,000 square feet, the area for the second shape is 2,400 square feet. The total area of both shapes added together is 18,400 square feet.

To find the area of the first shape, which is a rectangle that is 160 feet tall and 100 feet wide, we can use the formula:

Area = length x width

So, for the first shape, the area is:

Area = 160 ft x 100 ft

Area = 16,000 square feet

To find the area of the second shape, which is a rectangle that is 60 feet long and 40 feet wide, we can use the same formula:

Area = length x width

So, for the second shape, the area is:

Area = 60 ft x 40 ft

Area = 2,400 square feet

To find the total area of both shapes added together, we simply add the two areas:

Total Area = 16,000 square feet + 2,400 square feet

Total Area = 18,400 square feet

Therefore, the total area of both shapes added together is 18,400 square feet.

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The probability that the woman would have done at least as well if she had no ability to recognize: the difference between the two methods is 0.117.

Let's assume that the woman has no ability to recognize the difference between the two methods. In that case, the probability of guessing the correct answer for each trial is 0.5 (since there are only two options).

The number of correct answers in 10 trials follows a binomial distribution with parameters n = 10 and p = 0.5. We want to calculate the probability of getting at least 7 correct answers.

Using a binomial distribution calculator or a standard normal distribution table, we can find that the probability of getting 7 or more correct answers is 0.117 (rounded to three decimal places).

Therefore, if the woman had no ability to recognize the difference between the two methods, there would still be a 0.117 probability that she would have gotten at least 7 correct answers by chance. Since 0.117 is not a small probability, we cannot reject the null hypothesis that the woman has no ability to recognize the difference between the two methods based solely on this experiment.

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To produce (a) a scatterplot matrix of all five Features: we can use the Multivariate platform in JMP. (b) To conduct a principal component analysis (PCA) on the correlations select "Principal Components" from the red triangle menu. In the resulting dialog box, we can select the five features and check the "Correlations" option.

(a)You would utilise the Multivariate platform in JMP software to generate a scatterplot matrix of each of the five features. This allows you to visualize the relationships between each pair of features and identify any correlations or trends that may exist.

(b) You would use the PCA function in JMP or another statistical programme to perform a principal component analysis (PCA) on the correlations of all five features.

PCA is a technique used to reduce the dimensionality of data by identifying the most important features (principal components) that account for the largest variance in the data. Eigenvectors are used to determine the importance of each feature, with higher values indicating more significant features.

Considering the eigenvectors, the most useful features are those with the highest values, as they contribute the most to explaining the variation in the data. These high-value eigenvectors will help you identify the key socioeconomic factors driving differences between the census tracts in the LA Metropolitan area.

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The one critical point at (0, 0).

The critical point (0, 0) is a saddle point, and the critical point (-9, -3) is a relative minimum.

To find the critical points of the given function f(x, y) = x^2 - 6xy - 2y^3, we need to find the points where the partial derivatives with respect to x and y are equal to zero.

Calculate the partial derivative with respect to x (f_x):

f_x = 2x - 6y

Calculate the partial derivative with respect to y (f_y):

f_y = -6x - 6y^2

Set both partial derivatives equal to zero and solve the system of equations:

2x - 6y = 0 ---(1)

-6x - 6y^2 = 0 ---(2)

From equation (1), we can rearrange it to solve for x:

2x = 6y

x = 3y

Substituting x = 3y into equation (2):

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

-18y - 6y^2 = 0

-6y(3 + y) = 0

Now, we have two possible cases:

a) -6y = 0

b) 3 + y = 0

a) -6y = 0

This implies y = 0

Substituting y = 0 into equation (1):

2x - 6(0) = 0

2x = 0

x = 0

So, we have one critical point at (0, 0).

b) 3 + y = 0

This implies y = -3

Substituting y = -3 into equation (1):

2x - 6(-3) = 0

2x + 18 = 0

2x = -18

x = -9

So, we have another critical point at (-9, -3).

Now, to classify each critical point as a relative maximum, relative minimum, or a saddle point, we need to analyze the second-order partial derivatives.

Calculate the second partial derivative with respect to x (f_xx):

f_xx = 2

Calculate the second partial derivative with respect to y (f_yy):

f_yy = -12y

Calculate the mixed partial derivative (f_xy):

f_xy = -6

Now, evaluate the discriminant D = f_xx * f_yy - (f_xy)^2 at each critical point:

For the critical point (0, 0):

D = f_xx * f_yy - (f_xy)^2

= 2 * (-12 * 0) - (-6)^2

= 0 - 36

= -36

For the critical point (-9, -3):

D = f_xx * f_yy - (f_xy)^2

= 2 * (-12 * -3) - (-6)^2

= 72 - 36

= 36

Analyzing the discriminant:

For the critical point (0, 0):

If D < 0, it is a saddle point. In this case, D = -36, so (0, 0) is a saddle point.

For the critical point (-9, -3):

If D > 0 and f_xx > 0, it is a relative minimum. In this case, D = 36 and f_xx = 2, so (-9, -3) is a relative minimum.

Therefore, the critical point (0, 0) is a saddle point, and the critical point (-9, -3) is a relative minimum.

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The interquartile range (IQR) is the difference between the third quartile (Q3) and the first quartile (Q1) of the data. From the box-and-whisker plot given, the IQR is 12.

The box-and-whisker plot provides us with the following information:

Therefore, the range of the data is the difference between the maximum and minimum values:

Range = maximum value - minimum value = 13 - 1 = 12

So, the range of the data is 12.

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Full Question: The box-and-whisker plot shows the number of pigeons spotted by visitors at the park during the last weekend. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 What is the interquartile range of the data? Provide your answer below:

Image attached

When m = 50 and v = 2, the value of T is -200 according to Equation 1 and 200 according to Equation 2.

In the given equations, T represents a variable and m and v are constants.

We need to find the value of T when m = 50 and v = 2.

Let's evaluate each equation separately.

Equation 1: T = -mv²

Substituting the given values, we have:

T = -(50)(2)²

T = -(50)(4)

T = -200

Equation 2: T = my²

Substituting the given values, we have:

T = (50)(2)²

T = (50)(4)

T = 200

Thus, when m = 50 and v = 2, Equation 1 gives T = -200 and Equation 2 gives T = 200.

These equations represent two different relationships between the variables.

Equation 1 has a negative sign in front of the result, indicating that T will have a negative value.

On the other hand, Equation 2 does not have a negative sign, resulting in a positive value for T.

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Melanie does not have enough grass seed to make a lawn.

To find out if Melanie has enough grass seed to make a lawn by 12m by 14m, we need to calculate the area of the lawn and compare it to the amount of grass seed she has.

The area of the square lawn is 8m x 8m = 64 square meters. To cover this area with 5kg of grass seed, we can calculate the amount of grass seed needed per square meter: 5kg / 64 square meters = 0.078125 kg/square meter.

The area of the rectangular lawn is 12m x 14m = 168 square meters. To cover this area with the same amount of grass seed per square meter, we can calculate the total amount of grass seed needed: 168 square meters x 0.078125 kg/square meter = 13.125 kg.

Since Melanie only has 4 boxes of grass seed, which is a total of 12kg, she does not have enough to cover the rectangular lawn. She would need at least 1.125 kg more grass seed to cover the area.

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If a population is normal with a variance of 99, the necessary sample size is 7 (Option B).

To find the necessary sample size for a given confidence level and margin of error, we can use the formula:

n = (Z² * σ²) / E²

where n is the sample size, Z is the Z-score corresponding to the desired confidence level, σ² is the population variance, and E is the margin of error.

In this case, the population variance (σ²) is 99, the desired confidence level is 68.26%, and the margin of error (E) is 4 units. The Z-score corresponding to a 68.26% confidence level is approximately 1, as it is close to one standard deviation from the mean in a normal distribution.

Now, we can plug the values into the formula:

n = (1² * 99) / 4²
n = (1 * 99) / 16
n = 99 / 16
n ≈ 6.19

Since we cannot have a fraction of a sample, we round up to the nearest whole number, which is 7. So, the necessary sample size is 7 (Option B).

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The 90% confidence interval for the sample is (35.384, 36.616).

We may use the following expression to determine the 90% confidence interval for a sample of 64 participants with a mean of 36 and a standard deviation of 3.

⇄

where: X = sample mean

Z[tex]\alpha[/tex]/2 = critical value for a 90%  level from the ordinary normal distribution, which is roughly 1.645

σ = population standard deviation

n = sample size

Inputting the values provided yields:

CI = 36 ± 1.645 * (3 / √64)

When we condense the equation between the brackets, we obtain:

CI = 36 ± 1.645 * (3 / 8)

Further simplification results in:

CI = 36 ± 0.616

Consequently, the sample's 90% confidence interval is as follows:

(36 - 0.616, 36 + 0.616) = (35.384, 36.616)

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To find a formula for the sum of n terms, we need to first write out the first few terms of the series and look for a pattern:

n=1: (6+1/1) (2/1) = 14
n=2: (6+1/2) (2/2) + (6+2/2) (2/2) = 16
n=3: (6+1/3) (2/3) + (6+2/3) (2/3) + (6+3/3) (2/3) = 17 1/3
n=4: (6+1/4) (2/4) + (6+2/4) (2/4) + (6+3/4) (2/4) + (6+4/4) (2/4) = 18

From this, we can see that the nth term is given by (6+i/n) (2/n). To find the sum of n terms, we simply add up all of the terms from i=1 to i=n:

∑ (6+i/n) (2/n) = (2/n) ∑ (6+i/n)

Using the formula for the sum of an arithmetic series, we get:

∑ (6+i/n) = n/2 (6 + (6+n)/n)

Substituting this back into our expression for the sum of n terms, we get:

∑ (6+i/n) (2/n) = (2/n) * (n/2) * (6 + (6+n)/n) = 6 + (6+n)/n

Taking the limit as n approaches infinity, we get:

lim (6 + (6+n)/n) = 6 + lim ((6+n)/n) = 6 + 1 = 7

Therefore, the limit of the given series as n approaches infinity is 7.

To find the formula for the sum of n terms, we will use the concept of Riemann sums. Given the expression you provided, it appears that you are trying to compute the limit of the Riemann sum as n approaches infinity, which will give you the integral of the function.

Expression: lim (n→∞) ∑ (6 + i/n) (2/n)

First, let's rewrite the Riemann sum in integral form:

∫(6 + x)dx

Now we need to find the integral of the function and evaluate it over a specific interval. However, you haven't provided the interval, so I'll assume it is [a, b].

∫(6 + x)dx evaluated from a to b will give us the formula for the sum of n terms:

F(x) = 6x + (1/2)x^2

Now, evaluate F(x) over the interval [a, b]:

F(b) - F(a) = [6b + (1/2)b^2] - [6a + (1/2)a^2]

This is the formula for the sum of n terms. To find the limit as n approaches infinity, you will need to provide the specific interval [a, b]. Otherwise, the limit cannot be determined without further information.

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The correct expression equivalent to 16 + 2 x 36 is 88.

To simplify the expression, we need to follow the order of operations, which is Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). In this case, we have multiplication and addition.

Using the order of operations, we first need to perform the multiplication:

2 x 36 = 72

Then, we add 16 to the product:

16 + 72 = 88

Therefore, 16 + 2 x 36 is equivalent to 88.

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Answer:

f(x) = g(x - 9)

Step-by-step explanation:

The transformation from g(x) to f(x) is a translation of 9 units to the right.

A horizontal translation of h units takes place when x is replaced by x - h.

Here, replace x by x - 9.

f(x) = g(x - 9)

The correct relationship which does not represent a direct proportion is,

⇒ A dog groomer charges $15 per hour.

Given that;

The graph is shown relation between number of minutes and Distance.

Take two points on the line are,

(2, 100) and (4, 150)

Hence, From graph we get;

The equation of line is,

⇒ y - 100 = (150 - 100)/ (4 - 2) (x - 2)

⇒ y - 100 = 25 (x - 2)

⇒ y - 100 = 25x - 50

⇒ y = 25x - 50 + 100

⇒ y = 25x + 50

Thus, The correct relationship which does not represent a direct proportion is,

⇒ A dog groomer charges $15 per hour.

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Answer:

Step-by-step explanation:

Q.1:

6m - 8n - 10m - 2 - 2n + 4 = -6n - 4m + 2

12x - 25y - 10z + 10 - 16x - 2z + 7 = -4x - 25y - 12z + 17

Q.2:

8pq + 20qr - 16s = 4(2pq + 5qr - 4s)

4a2 + 7a + 3 = (4a + 3)(a + 1)

a2 - 5a + 2ab - 10b = (a - 2)(a + 2b - 5)

Q.3:

3m4 + 5m8 - m2 = m2(3m2 + 5m6 - 1)/(m2) = 3m2 + 5m6 - 1

2p3 - 3p + p2 = p2(2p - 3)/(p2) = 2p - 3

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The perimeter of the rectangle is 8 1/4 feet. the correct answer is A.

Perimeter is the total length of the sides of a two-dimensional shape. In a rectangle, opposite sides are equal in length, so the perimeter can be found by adding the lengths of all four sides. To find the perimeter of a rectangle, we use the formula:

Perimeter = 2(length + width)

In this case, the length is given as 3 1/4 feet and the width is given as 7/8 feet. To find the perimeter, we substitute these values into the formula:

Perimeter = 2(3 1/4 + 7/8)

To simplify, we need to convert the mixed number to an improper fraction and find a common denominator for the fractions:

Perimeter = 2(13/4 + 7/8)

Perimeter = 2(26/8 + 7/8)

Perimeter = 2(33/8)

Now we can simplify the expression by multiplying 2 by the fraction:

Perimeter = 66/8

We can reduce this fraction by dividing both the numerator and denominator by 2:

Perimeter = 33/4

Therefore, the perimeter of the rectangle is 8 1/4 feet, which is answer choice A.

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Answer:

The missing point of this parallelogram is (6, 5).

The acceleration is 2 m/s²

The first step is to write out the parameters given in the question

Acceleration is the rate at which an object changes its velocity over time.

The formula to calculate the acceleration is v²= u² + 2as10²= 0² + 2(a)(25)100= 2a(25)100= 50a

Divide both sides by the coefficient of a which is 50

100/50 =  50a/50

a= 2

Hence the acceleration of the object is 2 m/s²

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Answer: $2,013.43

Step-by-step explanation:

$135,950 x 1.15% = 1,563.425

Round to $1,563.43

Add in $450

$1,563.43 + $450 = $2,013.43

The volume of the rectangular prism is 728 cubic inches.

A rectangular prism is a three-dimensional object that has six faces, all of which are rectangles. It is also known as a rectangular parallelepiped. To find the volume of a rectangular prism, we need to know the area of the base and the height of the prism.

The base of a rectangular prism is a rectangle, and its area is given by the formula A = lw, where l is the length and w is the width of the rectangle. Once we know the area of the base, we can find the volume of the prism by multiplying the base area by the height of the prism. The formula for the volume of a rectangular prism is:

V = Bh

where B is the area of the base and h is the height of the prism.

In the given problem, we are given the base area of the rectangular prism as 52 square inches and the height as 14 inches. Therefore, we can substitute these values into the formula to find the volume of the rectangular prism:

V = Bh = 52 sq in * 14 in = 728 cubic inches

So the volume of the rectangular prism is 728 cubic inches.

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a. The limit does not exist.
b. The limit is equal to 4.

a. To find the limit as x approaches 2, we need to evaluate the left-hand and right-hand limits separately and check if they are equal.
Left-hand limit: lim f(x) as x approaches 2 from the left
We have f(x) = x - 1 for x < 2. So, as x approaches 2 from the left, f(x) approaches 1.
Right-hand limit: lim f(x) as x approaches 2 from the right
We have f(x) = 1 for 2 ≤ x ≤ 6 and f(x) = x + 4 for x > 6. So, as x approaches 2 from the right, f(x) approaches 6.
Since the left-hand and right-hand limits are not equal, the limit as x approaches 2 does not exist.
b. To find the limit as x approaches 6, we need to evaluate the left-hand and right-hand limits separately and check if they are equal.
Left-hand limit: lim f(x) as x approaches 6 from the left
We have f(x) = 1 for 2 ≤ x ≤ 6 and f(x) = x + 4 for x > 6. So, as x approaches 6 from the left, f(x) approaches 1.
Right-hand limit: lim f(x) as x approaches 6 from the right
We have f(x) = x + 4 for x > 6. So, as x approaches 6 from the right, f(x) approaches 10.
Since the left-hand and right-hand limits are not equal, the limit as x approaches 6 does not exist.
Therefore, the correct choices are:
a. The limit is not -oo or co and does not exist.
b. lim = 4.

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The statement "the first number of my ordered pair is 50" implies that all the points are of the form (50, y), where y can be any real number.

Therefore, the set of points that satisfy this statement is infinite, and it is not possible to list all of them.

However, if you need 20 specific points, you can choose any 20 values for y and pair them with 50 to obtain 20 points that satisfy the given condition.

For example, some of the points that satisfy this statement are (50, 0), (50, 1), (50, -2), (50, π), and (50, 10^6).


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Answer:

y = 10

Step-by-step explanation:

If y varies directly with x, and y=20 when x=-2, the best way to find y when x=-1 is to divide 20/-2, which equals -10.

Now cancel out -1 by dividing it by 1, and do the same with -10 by dividing it by 1 also. This equals 10, and that's your answer. Check the table I made below representing the problem. It should make it easier understand.

The standard matrix for the linear transformation T that shears horizontally is T = [(1 1) (0 1)] [(1 0) (-6 1)] [(1 1) (0 1)]^(-1) = [(1 -6) (0 1)].

To find the standard matrix for the linear transformation T that shears horizontally, we need to determine the matrix that transforms the standard basis vectors e1 and e2 into the shear vectors s1 and s2. The shear vectors are obtained by applying the linear transformation T to the standard basis vectors e1 and e2, respectively.

The shear vector s1 is obtained by shearing the point (1,0) horizontally by -1 unit, and then vertically by 6 units. This gives us s1 = (-1,6). Similarly, the shear vector s2 is obtained by shearing the point (0,1) horizontally by -1 unit and leaving it vertically unchanged. This gives us s2 = (-1,1).

To obtain the standard matrix for the linear transformation T, we need to find the matrix A that transforms the standard basis vectors e1 and e2 into the shear vectors s1 and s2, respectively. We can express A as [s1 s2] [e1 e2]^(-1), where [s1 s2] is a 2x2 matrix whose columns are the shear vectors, and [e1 e2]^(-1) is the inverse of the 2x2 matrix whose columns are the standard basis vectors.

Substituting the values of s1, s2, e1, and e2, we get:

A = [(1 -1) (6 1)] [(1 0) (0 1)]^(-1) = [(1 -1) (6 1)] [(1 0) (0 1)] = [(1 -1) (6 1)]

Therefore, the standard matrix for the linear transformation T that shears horizontally is T = [(1 1) (0 1)] [(1 -1) (6 1)] [(1 1) (0 1)]^(-1) = [(1 -6) (0 1)].

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Using an equation, if Nancy worked alone, the number of hours it would take her to complete the birthday cake is 1 hour 30 minutes.

An equation is a mathematical statement that proves the equality or equivalence of two or more mathematical expressions.

Equations use the equal symbol (=) unlike algebraic expressions, which combine variables with numbers, constants, and values using mathematical operands.

The number of hours for Vanessa and Nancy working together to make a birthday cake = 2 hours

The number of hours it takes Vanessa to complete the cake working alone = x

The number of hours it takes Nancy to complete the cake alone = 3x

3x + x = 2

4x = 2

x = 0.5 = 30 minutes

The total time for Nancy to complete the cake = 3x = 1.5 (3 x 0.5)

= 1 hour 30 minutes

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