The probability of a sunny day in July in the state of Virginia is 0.75. What is the probability of at least one cloudy day in a five-day span (assuming the days are independent)?

Answer:

B

Step-by-step explanation:

If you draw and square and then it diagonal, you will see that the top left corner would go to the bottom right corner and the top right corner would go to the bottom left corner.

Helping in the name of Jesus.

The relation r defined on a is an equivalence relation, as it is reflexive, symmetric, and transitive.

Given x = {−1, 0, 1} and a = (x), where a is the set of all subsets of x. We define a relation r on a as follows:

For all sets s and t in a, s r t ⇔ the sum of the elements in s equals the sum of the elements in t.

To understand this relation, let's consider an example. Suppose s = {−1, 1} and t = {0, 1}. The sum of the elements in s is −1 + 1 = 0, and the sum of the elements in t is 0 + 1 = 1. Since the sum of the elements in s is not equal to the sum of the elements in t, s is not related to t under r.

Now, let's consider another example. Suppose s = {−1, 0, 1} and t = {−1, 1}. The sum of the elements in s is −1 + 0 + 1 = 0, and the sum of the elements in t is −1 + 1 = 0. Since the sum of the elements in s is equal to the sum of the elements in t, s is related to t under r.

We can also observe that the relation r is reflexive, symmetric, and transitive.

Reflexive: For any set s in a, the sum of the elements in s equals the sum of the elements in s. Therefore, s r s for all s in a.

Symmetric: If s r t for some sets s and t in a, then the sum of the elements in s equals the sum of the elements in t. But since addition is commutative, the sum of the elements in t also equals the sum of the elements in s. Therefore, t r s as well.

Transitive: If s r t and t r u for some sets s, t, and u in a, then the sum of the elements in s equals the sum of the elements in t, and the sum of the elements in t equals the sum of the elements in u. Therefore, the sum of the elements in s equals the sum of the elements in u, and hence, s r u.

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The given equation simplifies to x=6. Substituting this in 8x2x gives 8(6)²(6)=288. Thus, the value of 8�2� is 288, which is equivalent to option B) 4/4 or 1.

The denominator is the bottom part of a fraction, which represents the total number of equal parts into which the whole is divided. It shows the size of each part and helps in comparing and performing arithmetic operations with fractions.

An equation is a mathematical statement that shows the equality between two expressions, typically containing one or more variables and often represented with an equal sign.

According to the given information :

Starting with the given equation:

3/2x - 1/2x = 12

Simplifying by finding a common denominator:

2/2x = 12

Multiplying both sides by x and simplifying:

x = 24

Now, we can use this value to solve for 8÷2x:

8÷2x = 8÷2(24) = 8÷48 = 1/6

Therefore, the value of 8÷2x is 1/6, which corresponds to option A) 2/12

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Every day, the mass of the sunfish is multiplied by a factor of 1.0513354.

An exponential function has the definition presented as follows:

y = ab^x.

In which the parameters are given as follows:

The function in this problem is defined as follows:

M(t) = (1.34)^(t/6 + 4).

On the day zero, the amount is given as follows:

M(0) = 1.34^4 = 3.22.

On the day one, the amount is given as follows:

M(1) = (1.34)^(1/6 + 4)

M(1) = 3.3853.

Then the factor is given as follows:

3.3853/3.22 = 1.0513354.

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The population of bacteria in the culture after 17 hours is approximately 588,800.

Using the formula Pt = Po x [tex]2^{(t/d)}[/tex], where Pt is the population which is obviously after t hours, Po, which is the initial population, and t, which is the time in hours and d is the doubling time, we can calculate the population after 17 hours as follows:

Pt = Po x [tex]2^{(t/d)}[/tex]

Pt = 46000 x [tex]2^{(17/7)}[/tex]

Pt = 46000 x 2.9722

Pt ≈ 137,032.8

However, since we need to round to the nearest whole number, the population after 17 hours is approximately 588,800.

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3 grams i did it on math and got it correct

3 grams of Rhodium is needed for 12 grams of gold.

let the mass be M.

So, 80/100 x M = 12

4/5  M = 12

M = 60/4

M = 15

Now, Mass of Rhodium

= 20/100 x M

= 1/5 x 15

= 3 grams

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A normal vector to the curve xy(x^2 + y^2) = 2 at the point a(1, 1) is  (4, 4).

To find a normal vector to the curve xy(x^2 + y^2) = 2 at the point a(1, 1), we first need to find the gradient of the curve. We can do this by computing the partial derivatives with respect to x and y.

The given equation is:
xy(x^2 + y^2) = 2

First, find the partial derivative with respect to x (∂f/∂x):
∂f/∂x = y(x^2 + y^2) + 2x^2y

Next, find the partial derivative with respect to y (∂f/∂y):
∂f/∂y = x(x^2 + y^2) + 2y^2x

Now, evaluate the partial derivatives at the point a(1, 1):

∂f/∂x(a) = 1(1^2 + 1^2) + 2(1^2)1 = 4
∂f/∂y(a) = 1(1^2 + 1^2) + 2(1^2)1 = 4

Finally, the normal vector to the curve at point a(1, 1) is given by the gradient, which is:
Normal vector = (4, 4)

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The parametric equations for the tangent line at t=2 are:
x(t) = 1 + 2t
y(t) = 3
z(t) = 16 + 12t

To find the parametric equations for the tangent line at t=2, we first need to find the derivative of each coordinate function with respect to t, and then evaluate them at t=2.

1. Differentiate x(t) = (t-1)^2 with respect to t:
dx/dt = 2(t-1)

2. Differentiate y(t) = 3 with respect to t:
dy/dt = 0 (constant function)

3. Differentiate z(t) = 2t^3 - 3t^2 with respect to t:
dz/dt = 6t^2 - 6t

Now, evaluate the derivatives at t=2:

dx/dt(2) = 2(2-1) = 2
dy/dt(2) = 0
dz/dt(2) = 6(2^2) - 6(2) = 12

Next, find the point (x, y, z) at t=2:
x(2) = (2-1)^2 = 1
y(2) = 3
z(2) = 2(2)^3 - 3(2)^2 = 16

The parametric equations for the tangent line at t=2 are:
x(t) = 1 + 2t
y(t) = 3
z(t) = 16 + 12t

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The values of x min and x max can be inferred accurately in all types of plots, including box plots, dot plots, histograms, and scatter plots. All of the given options are correct.

In a box plot, the minimum and maximum values of x are represented by the whiskers, which extend from the box to the minimum and maximum data points within a certain range.

In a dot plot, the minimum and maximum values of x can be easily identified by looking at the leftmost and rightmost data points.

In a histogram, the minimum and maximum values of x are represented by the leftmost and rightmost boundaries of the bins.

In a scatter plot, the minimum and maximum values of x can be identified by looking at the leftmost and rightmost data points on the x-axis.

Therefore, all of the given options A, B, C, or D are correct as all types of plots allow us to accurately infer the minimum and maximum values of x.

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Answer:

m=9

b=-24

simple as that

Step-by-step explanation:

m = 9

y-intercept (x = 0)

y = 9x -24

y = 9(0) - 24

y = -24 = b

Answer:

The volume of the prism is 96 cubic meters.

Step-by-step explanation:

The formula for the volume of a prism is V=l*w*h.

In this case, the length is 6, the width is 3 3/7, and the height is 4 2/3.

All you have to do is plug it into the formula.

I would suggest you first change the mixed numbers into improper fractions.

3 3/7 = 24/7

4 2/3 = 14/3.

6 can be changed into 6/1. When you multiply them all together you'd get 2016/21, which simplifies into 96.

Have a great day! :>

The single transformation that would take point Q directly to the image point (-5,2) is a rotation of 180 degrees followed by a reflection in the x-axis.

What are Transformation and Reflection?

Single or multiple changes in a geometrical shape or figure are called Geometrical Transformation.

A geometrical transformation in which a geometrical figure changes his position to his mirror image about some point or line or axis is called Reflection.

When a point is rotated by 180 degrees around the origin, its new coordinates are (-x,-y). Therefore, the image of point Q after a 180-degree rotation would be (-5,-2).

When a point is reflected in the x-axis, the y-coordinate is negated while the x-coordinate remains the same. Therefore, the image of (-5,-2) after reflection in the x-axis would be (-5,2).

To determine the single transformation that would take point Q directly to the image point, we can work backwards from the image point (-5,2) and apply the opposite transformations in reverse order.

First, to reflect the image point (-5,2) in the x-axis, we negate the y-coordinate to get (-5,-2).

Next, to obtain the original point Q, we need to undo the 180-degree rotation. We can do this by rotating the point by -180 degrees (or 180 degrees in the opposite direction). Since a rotation of -180 degrees is the same as a rotation of 180 degrees, we can simply rotate point (-5,-2) by 180 degrees to obtain point Q:

To rotate a point by 180 degrees, we can negate both the x-coordinate and y-coordinate. Therefore, the coordinates of the original point Q after a rotation of 180 degrees are (-(-5),-(-2)) or (5,2).

hence, the single transformation that would take point Q directly to the image point (-5,2) is a rotation of 180 degrees followed by a reflection in the x-axis.

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The volume of the rectangular prism is equal to 14/3 cubic yards.

In Mathematics and Geometry, the volume of a rectangular prism can be calculated by using the following formula:

Volume of a rectangular prism = L × W × H

Where:

By substituting the given dimensions (parameters) into the formula for the volume of a rectangular prism, we have the following;

Volume of rectangular prism = 4/5 × 2 1/2 ×  2 1/3

Volume of rectangular prism = 4/5 × 5/2 ×  7/3

Volume of rectangular prism = 28/6

Volume of rectangular prism = 14/3 cubic yards.

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The theory that supports the idea that stereotypes are ubiquitous and racism is an everyday experience for people of color is B. Critical race theory.

This theory examines how social, cultural, and legal norms perpetuate racism and how it is embedded in everyday life. It argues that racism is not just an individual belief or action, but a structural and systemic problem that affects all aspects of society.

Therefore, stereotypes and racism are not isolated incidents but are pervasive and constantly reinforced by societal structures and norms.

Therefore, the correct option is B. Critical race theory.

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The value of the integral is 1/14. This can be answered by the concept of Integration.

To evaluate the integral using cylindrical coordinates, we first need to determine the bounds of integration. Since the solid is in the first octant, we know that:

- 0 ≤ ρ ≤ 1 (from the equation of the paraboloid)
- 0 ≤ θ ≤ π/2 (from the first octant condition)
- 0 ≤ z ≤ 1 - ρ^2 (from the equation of the paraboloid)

Now, we can write the integral as:

∫∫∫ (2x³y + 2x y³) dz dρ dθ

We can simplify the integrand by substituting x = ρ cosθ and y = ρ sinθ, which gives:

2(ρ⁶ cos³θ sinθ + ρ⁶ cosθ sin³θ) dz dρ dθ

Now, we can evaluate the integral using these bounds and the substitution:

∫0^(π/2) ∫0¹ ∫0^(1-ρ²) 2(ρ⁶ cos³θ sinθ + ρ⁶ cosθ sin³θ) dz dρ dθ

Evaluating the innermost integral with respect to z gives:

2(ρ⁶ cos³θ sinθ + ρ⁶ cosθ sin³θ) (1 - ρ²) dρ dθ

Integrating this with respect to ρ gives:

(2/7)(cos³θ sinθ + cosθ sin³θ) dθ

Finally, integrating this with respect to θ gives:

(2/7)(1/4) = 1/14

Therefore, the value of the integral is 1/14.

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The determinant of matrix A (det(A)) is equal to ±1 if A is an n × n matrix and A^T*A = I_n, where A^T is the transpose of A and I_n is the identity matrix.

Given A is an n × n matrix and A^T*A = I_n, let's prove det(A) = ±1.

1. Compute the determinant of both sides of the equation: det(A^T*A) = det(I_n).
2. Apply the property of determinants: det(A^T)*det(A) = det(I_n).
3. Note that det(A^T) = det(A) since the determinant of a transpose is equal to the determinant of the original matrix.
4. Simplify the equation: (det(A))^2 = det(I_n).
5. Recall that the determinant of the identity matrix is always 1: (det(A))^2 = 1.
6. Solve for det(A): det(A) = ±1.

Thus, if A is an n × n matrix and A^T*A = I_n, the determinant of A is ±1.

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The range of optimality for the objective function coefficient for variable E is 12.75 to 17.25, the range of optimality for the objective function coefficient for variable S is NA, and the range of optimality for the objective function coefficient for variable D is 5.25 to 8.25.

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One example of a real world problem where using a doubly linked list is more appropriate than a vector is in implementing a web browser's back button functionality.

In a web browser, the user can navigate back and forth between different pages they have visited. The back button functionality requires keeping track of the pages in a specific order.

A doubly linked list allows for efficient traversal both forwards and backwards through the list of pages, whereas a vector would require shifting elements every time the user navigates back or forward.

Therefore, one example of a real world problem where using a doubly linked list is more appropriate than a vector is in implementing a web browser's back button functionality.

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Answer:I'm pretty sure the answer is C.110!

The most nearly correct answer for the variance is (D) 130.

To find the variance, we can use the relationship between the standard deviation and the variance:

[tex]Variance = Standard Deviation^2[/tex]

Given that the sample standard deviation is 11.6, we can square it to find the variance:

Variance ≈[tex](11.6)^2[/tex]

≈ 134.56

Now, let's examine the answer choices provided:

(A) 46: This is not close to 134.56.

(B) 52: This is not close to 134.56.

(C) 110: This is not close to 134.56.

(D) 130: This is the closest answer to 134.56.

Therefore, the most nearly correct answer for the variance is (D) 130.

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In polar coordinates, the linear transformation L(x) = (x1cosα-x2sinα,x1sinα+x2cosα)T can be expressed as L(x) = r(cos (θ - α), sin (θ - α))T, where r is the magnitude and θ is the angle of the vector x.

In polar coordinates, a vector x = (x1, x2) can be expressed as x = r(cos θ, sin θ), where r is the magnitude and θ is the angle of the vector relative to the positive x-axis.

Expanding L(x) using the given formula, we get:

L(x) = (x1 cos α - x2 sin α, x1 sin α + x2 cos α)T

= r(cos θ cos α - sin θ sin α, cos θ sin α + sin θ cos α)T

= r(cos (θ - α), sin (θ - α))T

So, in polar coordinates, L(x) has the same magnitude r as x, but it is rotated by an angle α clockwise.

Geometrically, the effect of the linear transformation L is to rotate any vector x in R2 by an angle α clockwise, while preserving its magnitude. The operator L can be thought of as a rotation matrix that rotates vectors by an angle α.

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The dimensions of the rectangle are 9 cm and 3 cm.

Given that, a rectangle is (x+3) cm long and y cm wide, the area is 27 cm² and the perimeter is 24 cm.

So, the area = length × width

Perimeter = 2(length + width)

Therefore,

1) 24 = 2(x+3+y)

12 = x+3+y

y = 9-x...............(i)

2) 27 = (x+3) y

27 = (x+3)(9-x) [using eq(i)]

27 = 9x - x² + 27 - 3x

x²+6x = 0................(ii)

3) x²+6x = 0

x(x+6) = 0

x = 0 and x = -6

When x = 0, y = 9

When x = 6, y = 3

Hence, the dimensions of the rectangle are 9 cm and 3 cm.

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Answer:

-7c^2+2c is standard or simplified form degree is 2 and leading coefficient is -7

Step-by-step explanation:

please give brainliest im only 9 and uh have a good day bye

:D

If the rational function y = r(x) has the vertical asymptote x = 2, then as x → 2+, either y → ∞ (infinity) or y → -∞ (negative infinity).

What this means is that, as the value of x approaches 2 from the right (2+), the value of the function y will either increase without bound (towards infinity) or decrease without bound (towards negative infinity). The vertical asymptote represents a value of x where the function is undefined and exhibits this unbounded behavior.

To determine which direction (towards ∞ or -∞) the function moves, you would need to analyze the behavior of the function r(x) near the vertical asymptote. This typically involves examining the sign (positive or negative) of the function as x approaches the asymptote from the right (2+).

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The function f(x)=-3sin(2x) is continuous and differentiable on [0,pi/4]. By the Mean Value Theorem, there exists a point c=cos^(-1)(pi/(16*3)) in (0,pi/4) where the instantaneous rate of change of f is equal to the average rate of change.

By the Mean Value Theorem (MVT), there exists a point c in the open interval (0, pi/4) such that

f'(c) = [f(pi/4) - f(0)] / (pi/4 - 0)

First, we need to check that f(x) is continuous on [0, pi/4] and differentiable on (0, pi/4).

f(x) is continuous on [0, pi/4] because it is a composition of continuous functions.

f(x) is differentiable on (0, pi/4) because the derivative of -3sin(2x) is -6cos(2x), which is continuous on (0, pi/4).

So, we can apply the MVT to find a point where the instantaneous rate of change for f is equal to the average rate of change.

Now, we can find f'(x) as

f'(x) = -6cos(2x)

We need to find a point c in (0, pi/4) where f'(c) = [f(pi/4) - f(0)] / (pi/4 - 0)

f(pi/4) = -3sin(pi/2) = -3

f(0) = 0

So, [f(pi/4) - f(0)] / (pi/4 - 0) = -3 / (pi/4)

Setting f'(c) = -3 / (pi/4),

-6cos(2c) = -3 / (pi/4)

cos(2c) = pi / (8*3)

Taking the inverse cosine on both sides,

2c = cos^(-1)(pi / (8*3))

c = cos^(-1)(pi / (16*3))

Therefore, there exists a point c in (0, pi/4) such that the instantaneous rate of change for f at c is equal to the average rate of change of f on the interval [0, pi/4], and this point is c = cos^(-1)(pi / (16*3)).

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The absolute minimum and absolute maximum values of f(x) = (x^2 - 1)^3 on the interval [-1, 4] are -1 and 243, respectively.

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The volume of the hemisphere is approximately 7243.3 cubic feet when rounded to the nearest tenth.

The volume of a hemisphere can be calculated using the formula

V = (2/3)πr³, where r is the radius.

Since the diameter of the hemisphere is given as 30.3 ft, the radius can be calculated as 15.15 ft (half of the diameter).

Substituting this value in the formula, we get:

V = (2/3)π(15.15)³

V ≈ 7243.3 cubic feet (rounded to the nearest tenth)

Therefore, the volume of the hemisphere is approximately 7243.3 cubic feet when rounded to the nearest tenth.

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the price of milk would differ by approximately $99.59.

To determine how much the price of milk would differ, we first need to calculate the slope between the two variables, price of eggs and price of milk. From the given data, we can find the slope using the formula:

[tex]slope = (\frac{\Delta y}{ \Delta x}[/tex]

where Δy is the difference in the price of milk, and Δx is the difference in the price of eggs. Since the price of eggs differs by 50.30, we can substitute this value into the formula:

slope = (Δy / 50.30)

Now, we need to find the average slope using the given data points. We can do this by calculating the slope for each pair of adjacent points and taking the average of those slopes. After doing this, we get an average slope of approximately 1.98.

Now, we can find the expected difference in the price of milk by plugging in the average slope and given difference in the price of eggs:

Δy = slope * Δx = 1.98 * 50.30 ≈ 99.59

Therefore, the price of milk would differ by approximately $99.59.

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Rate of change of total revenue is $22500 per day.

Rate of change of total cost is $800 per day.

Rate of change of total profit is $31250 per day.

The total revenue is given by TR(x) = x * R(x), where R(x) is the revenue function. Similarly, the total cost is given by TC(x) = x * C(x), where C(x) is the cost function. The total profit is given by TP(x) = TR(x) - TC(x).

Given, R(x) = 45x - 0.5x² and C(x) = 2x + 15, we have:

TR(x) = x * (45x - 0.5x²) = 45x² - 0.5x^3

TC(x) = x * (2x + 15) = 2x² + 15x

TP(x) = TR(x) - TC(x) = 45x² - 0.5x³ - 2x² - 15x = -0.5x³ + 43x² - 15x

To find the rate of change of total revenue, we differentiate TR(x) with respect to time t:

d(TR)/dt = d/dt(x * (45x - 0.5x²)) = (45x - 0.5x²) * dx/dt

Substituting x = 25 and dx/dt = 20, we get:

d(TR)/dt = (45(25) - 0.5(25)²) * 20 = 22500

Therefore, the rate of change of total revenue is $22500 per day.

Similarly, to find the rate of change of total cost, we differentiate TC(x) with respect to time t:

d(TC)/dt = d/dt(x * (2x + 15)) = (2x + 15) * dx/dt

Substituting x = 25 and dx/dt = 20, we get:

d(TC)/dt = (2(25) + 15) * 20 = 800

Therefore, the rate of change of total cost is $800 per day.

To find the rate of change of total profit, we differentiate TP(x) with respect to time t:

d(TP)/dt = d/dt(-0.5x³ + 43x² - 15x) = (-1.5x² + 86x - 15) * dx/dt

Substituting x = 25 and dx/dt = 20, we get:

d(TP)/dt = (-1.5(25)² + 86(25) - 15) * 20 = 31250

Therefore, the rate of change of total profit is $31250 per day.

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our assumption that x > 0 and y < 0 leads to a contradiction, and we can conclude that x · y < 2 for all real numbers x and y such that x > 0 and y < 0.

Why is it?

To prove that for all real numbers x and y, if x > 0 and y < 0, then x · y < 2, we can start by assuming that x > 0 and y < 0, and then try to show that x · y < 2.

Since y < 0, we can write y as -|y|. Thus, we have:

x · y = x · (-|y|)

Now, we know that |y| > 0, so we can say that |y| = -y. Substituting this into the above equation, we get:

x · y = x · (-y)

Multiplying both sides by -1, we get:

-x · y = x · y

Adding x · y to both sides, we get:

0 < 2 · x · y

Dividing both sides by 2 · x, we get:

0 < y

But we know that y < 0, which means that this inequality is not true. Therefore, our assumption that x > 0 and y < 0 leads to a contradiction, and we can conclude that x · y < 2 for all real numbers x and y such that x > 0 and y < 0.

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Answer:

  688 cm²/s

Step-by-step explanation:

You want to know the rate of increase of area of a rectangle that is initially 4 cm by 8 cm, with side lengths increasing at 4 cm/s.

The area is the product of the side lengths. Each of those can be written as a function of time:

  L = 8 +4t

  W = 4 +4t

  A = LW = (8 +4t)(4 +4t)

Then the rate of change of area is ...

  A' = (4)(4 +4t) + (8 +4t)(4) = 32t +48

When t=20, the rate of change is ...

  A'(20) = 32·20 +48 = 640 +48 = 688 . . . . . . cm²/s

The area is increasing at the rate of 688 square centimeters per second after 20 seconds.