What is the area of the circle? Use pi = 22/7. A. 201 1/7 in2 B. 56 4/7 in2 C. 28 2/7 in2 D. 254 4/7 in2

The product or multiple of 3.8 and 11.9 by rounding off (simplification) is equal to 45.22.

Simplification means keeping it simple. In mathematics, it simplifies or simplifies formulas/fractions/problems into simpler forms. Simplify the problem with calculations and solutions. 

Simplification generally means finding answers to complex calculations involving division, multiplication, square roots, cube roots, plus and minus numbers. 

Simplicity complicates deadpan, making it easier to understand and solve. Here are some advantages of solving a problem or equation by simplification.

It helps you solve your problem in fewer steps. Complex problems can be reduced to simpler forms by following the rules of simplification 

According to the question:

3.8×11.9 = (38/10)×(119/10)

             = 4522/100

             = 45.22

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Answer:

  32 in

Step-by-step explanation:

You want the missing diameter of the smaller of two similar cylinders, where the larger is 12 ft in diameter and 3 ft high, while the smaller is 8 inches high.

The linear dimensions of similar figures have the same ratio.

The ratio of the diameter to the height of the larger figure is ...

  (12 ft)/(3 ft) = 4

The smaller figure will also have a diameter that is 4 times the height:

  d = 4 × 8 in = 32 in

The missing dimension is 32 inches.

2x + 3y = 4

-x + 4y = -13 /×2

2x + 3y = 4

-2x + 8y = -26

11y = -22

y = -2

2x + 3(-2) = 4

2x + (-6) = 4

2x = 10

x = 5

check:

2(5) + 3(-2) = 4

10 + (-6) = 4

4 = 4

L = R

-(5) + 4(-2) = -13

-5 + (-8) = -13

-13 = -13

L = R

∴ x = 5, y = -2

The steepest road in the world, Canton Avenue in Pittsburgh, Pennsylvania, has a grade of 37%. This means that for every 100 ft of horizontal distance, the road rises 37 ft. To find out how much the road rises for 21 ft of horizontal distance, we can use the formula:

rise = grade × distance

Plugging in the values we have:

rise = 0.37 × 21

rise = 7.77 ft

Therefore, the road rises 7.77 ft for 21 ft of horizontal distance.

To find the angle that this grade makes with the ground, we can use the formula:

tan θ = rise ÷ distance

Plugging in the values we have:

tan θ = 7.77 ÷ 21

tan θ = 0.37

θ = tan^-1(0.37)

θ = 20.3°

Therefore, the grade of Canton Avenue makes an angle of 20.3° with the ground.

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The composition of the two given rational functions is another rational function, [tex]g(f(x)) = 1/((x+3)^2)[/tex].

The composition of two functions, f(x) and g(x), is denoted as g(f(x)) and is defined as the function that results from applying g(x) to the output of f(x). In other words, the composition of two functions is the function that results from plugging one function into another function.

To find the composition [tex]g(f(x))[/tex], we need to substitute the expression for [tex]f(x)[/tex] into the expression for [tex]g(x)[/tex] wherever we see an "x".

Given that [tex]f(x)=(1)/(x+3)[/tex] and [tex]g(x)=x^2[/tex], the composition [tex]g(f(x))[/tex] can be found as follows:

[tex]g(f(x)) = g((1)/(x+3)) = ((1)/(x+3))^(2) = (1^(2))/((x+3)^(2)) = 1/((x+3)^(2))[/tex]

Therefore, the composition [tex]g(f(x)) = 1/((x+3)^2)[/tex].

In conclusion, the composition of the two given rational functions is another rational function, [tex]g(f(x)) = 1/((x+3)^2)[/tex].

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Answer:

When you make 3x + y = -8 into a slope intercept equation it will become the same question

3x + y = -8

-3x      |       -3x

y = -3x - 8

The value of the triple integral is 49π ln(49) - 24.5π.

To evaluate this triple integral using cylindrical coordinates, we need to express the limits of integration in terms of cylindrical coordinates. We can convert the Cartesian coordinates to cylindrical coordinates as follows:

x = r cos(θ)

y = r sin(θ)

z = z

The region of integration is a cylinder centered at the origin with radius 7 and height 14 (from -7 to 7 in the y-direction). Therefore, the limits of integration are:

0 ≤ r ≤ 7

0 ≤ θ ≤ 2π

-7 ≤ z ≤ 7

Substituting these limits of integration and the Cartesian-to-cylindrical conversion into the integral, we get:

∫∫∫ 7 −7 (49 - [tex]y^2 - r^2[/tex]) / ([tex]x^2 + y^2)[/tex] dz dx dy

= ∫[tex]0^7[/tex]∫[tex]0^2π[/tex] ∫-7^7 (49 - [tex]r^2[/tex]sin^2(θ) - r^2) / (r^2cos^2(θ) + r^2sin^2(θ)) dz r dθ dr

= ∫0^7 ∫0^2π ∫-7^7 (49 - r^2) / r^2 dz r dθ dr

= ∫0^7 ∫0^2π [ln|49-r^2|] from -7 to 7 dθ dr

= ∫0^7 2π ln|49-r^2| dr

This integral is now a single-variable integral that can be evaluated using integration by substitution or by parts. Let u = 49 - r^2 and du = -2r dr. Then:

∫0^7 2π[tex]ln|49-r^2|[/tex] dr = ∫49^0 -πln|u| du/-2

= π/2 [u ln|u| - u] from 49 to 0

= π/2 [49 ln(49) - 49] = 49π ln(49) - 24.5π

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Answer:

The equivalent expression to find the area of a rectangle with a given length and width is A = l × w, where A is the area, l is the length, and w is the width.

vectors Info, Odd_Even, Prime_info, and the vector containing the statistical values.

This program can be written in R using the following steps:

1. Create a function number_info() that takes an input of a positive whole number and saves all the digits of that number in a vector array named Info.

2. Create a loop to check each number in the Info array and use an if-else statement to assign either "O" for odd numbers and "E" for even numbers to another vector array named Odd_Even.

3. Create a second loop to check each number in the Info array and use an if-else statement to assign either "P" for prime numbers and "NP" for non-prime numbers to another vector array named Prime_info.

4. If the Info array contains more than four digits, use R functions to calculate the minimum, maximum, mean, median, and standard deviation of the numbers in Info and save them in a new vector array. Fill the remaining indices of this vector with zeros.

5. Create a data frame called Number_Information using the vectors Info, Odd_Even, Prime_info, and the vector containing the statistical values.

6. Export the data frame as an excel file using the write.xlsx() function.

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Answer:

3(4x + 7) - (8x - 7)

Step-by-step explanation:

The value of c is 8 (option C).

To find the value of c in a linear equation, we can compare the given equation to the standard form of a linear equation, which is y = mx + c.

In this case, the given equation is y = 8. If we compare this to the standard form, we can see that m (the slope) is 0 and c (the y-intercept) is 8.

Therefore, the value of c is 8.

So, the correct answer is C. 8

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Answer:

Step-by-step explanation:

c

Answer:E

Step-by-step explanation:

Using binomial distribution, the probability of exactly two of their four children having the trait is 0.13 (rounded to the nearest thousandth).

This is a binomial distribution problem with n = 4 trials (number of children) and p = 0.82 probability of success (having the trait) for each trial.

The probability of exactly two children having the trait can be calculated using the binomial distribution formula:

P(X = 2) = (4C2) * 0.82^2 * (1 - 0.82)^(4-2)

where (4C 2) is the number of ways to choose 2 children out of 4.

Using a calculator or statistical software, we get:

P(X = 2) = (4 C 2) * 0.82^2 * (1 - 0.82)^(4-2)

= 6 * 0.82^2 * 0.18^2

= 0.13

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The statements are

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

In 6 minutes, Jose can run 18 laps

Using the above as a guide, we have the following:

Rate or Slope = 18/6

Evaluate

Slope = 3

For the equation, we have

y = Slope * Number of minutes

So, we have

y = 3 * x

This gives

y = 3x

Hence, the equation is y = 3x

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One possible ordered pair that is a solution of the equation y = 22 - 9x is (2, 4).

What is an ordered pair, and how can we find solutions of a linear equation?

An ordered pair is a pair of numbers (x, y) that represents a point on a coordinate plane. In algebra, we often use ordered pairs to represent solutions of equations, where the x-coordinate represents a variable and the y-coordinate represents the corresponding value of the expression.

To find solutions of a linear equation, we can substitute different values of the variable into the equation and solve for the corresponding values of the expression.

Find the ordered pair:

We are given the equation y = 22 - 9x, and we want to find an ordered pair that is a solution of the equation. To do this, we can choose a value of x and then use the equation to find the corresponding value of y.

Let's choose x = 2. Then, we can substitute x = 2 into the equation and solve for y:

y = 22 - 9(2)

y = 22 - 18

y = 4

Therefore, when x = 2, y = 4, which means the ordered pair (2, 4) is a solution of the equation.

We could also check this by graphing the equation and verifying that the point (2, 4) lies on the line represented by the equation.

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The formula for an exponential function that passes through the two points are

a. (0,4) and (2,64)

f(x)= 4(4ˣ)

b. (0,810) and (2,10)

g(x)=810(1/9)ˣ

The following is the formula for an exponential function that traverses two points:

f(x) = abˣ

Where a is the initial value and b is the growth rate.

To find the formula for an exponential function that passes through the two points given, we can plug in the values of x and y into the formula and solve for a and b.

For the first set of points, (0,4) and (2,64), we can plug in the values of x and y into the formula and solve for a and b:

4 = ab⁰
64 = ab²

Simplifying the first equation gives us:

a = 4

Substituting this value of a into the second equation gives us:

64 = 4b²

Solving for b gives us:

b = √(64/4) = 4

Therefore, the formula for the exponential function that passes through the two points (0,4) and (2,64) is:

f(x) = 4(4ˣ)

For the second set of points, (0,810) and (2,10), we can plug in the values of x and y into the formula and solve for a and b:

810 = ab⁰
10 = ab²

Simplifying the first equation gives us:

a = 810

Substituting this value of a into the second equation gives us:

10 = 810b²

Solving for b gives us:

b = √(10/810) = 1/9

Therefore, the formula for the exponential function that passes through the two points (0,810) and (2,10) is:

g(x) = 810(1/9)ˣ

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The restrictions on x are x = 1/5 and x = 0.

The restrictions on x, when (x+4)/(5x-1) is divided by (3x+12)/(6x), can be found by looking at the denominators of each fraction. The restrictions are values of x that would make the denominator equal to zero, which would make the fraction undefined.

For the first fraction, (x+4)/(5x-1), the restriction is when 5x - 1 = 0. Solving for x, we get:
5x = 1
x = 1/5

For the second fraction, (3x+12)/(6x), the restriction is when 6x = 0. Solving for x, we get:
x = 0

Therefore, the restrictions on x are x = 1/5 and x = 0. These values of x cannot be used in the original expression because they would make the denominator equal to zero and the expression undefined.

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Answer: Y= -5x+4

Step-by-step explanation:

The Euclidean inner product of the given vectors is 25.

The Euclidean inner product of two vectors u and v is defined as the sum of the products of the corresponding entries of the vectors. In mathematical terms, it is given by:

Euclidean inner product = u[1]*v[1] + u[2]*v[2] + u[3]*v[3]

Given the vectors u=[[5],[3],[-4]] and v=[[1],[0],[-5]], we can find the Euclidean inner product by substituting the values into the formula:

Euclidean inner product = (5)*(1) + (3)*(0) + (-4)*(-5)
= 5 + 0 + 20
= 25

Therefore, the Euclidean inner product of the given vectors is 25.

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The region corresponding to the statement P(z<1.4) is the area to the left of z=1.4 on a standard normal distribution. This represents the probability of obtaining a z-score less than 1.4.

The region corresponding to the statement P(-c < z < c) = 0.2 is the area between two values, -c and c, on a standard normal distribution that contains 20% of the total area under the curve. This represents the probability of obtaining a z-score between -c and c.

The region corresponding to the statement P(|z|>c) = 0.2 is the area to the left of z=-c and to the right of z=c on a standard normal distribution that contains 20% of the total area under the curve. This represents the probability of obtaining a z-score that is greater than c or less than -c.

The first statement, P(z < 1.4), refers to the probability that the random variable z is less than 1.4. To sketch this region, we would shade the area to the left of the value 1.4 on the number line.

The second statement, P(-c < z < c) = 0.2, refers to the probability that the random variable z is between -c and c, and that this probability is equal to 0.2. To sketch this region, we would shade the area between -c and c on the number line, and adjust the values of c until the shaded area represents 0.2 of the total area under the curve.

The third statement, P(c < z < k) = -0.2, refers to the probability that the random variable z is between c and k, and that this probability is equal to -0.2. To sketch this region, we would shade the area between c and k on the number line, and adjust the values of c and k until the shaded area represents -0.2 of the total area under the curve.

It is important to note that probabilities cannot be negative, so the third statement is not valid. The shaded area should always represent a positive value between 0 and 1.

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Therefore, the equation of the parabola is:

f(x) = -(x - 3)² + 25

f(x) = -x² + 6x + 16

So the answer is f(x) = -x² + 6x + 16.

Typically, the intersection of two or more lines or edges forms a vertex, a singular point on a mathematical object. Graphs, polygons, polyhedra, and angles are the shapes that contain vertices most commonly. Nodes are another name for vertices in a graph.

Since the vertex of the parabola is at (3, 25), we know that the equation of the parabola is of the form:

f(x) = a(x - 3)² + 25

where "a" is a constant that determines the shape of the parabola. We also know that the parabola passes through the points (-2, 0), (8, 0), (0, 16), and (6, 16).

Let's plug in the coordinates of one of the points on the parabola to find the value of "a". For example, if we plug in the coordinates of the point (0, 16), we get:

16 = a(0 - 3)² + 25

-9 = 9a

a = -1

Therefore, the equation of the parabola is:

f(x) = -(x - 3)² + 25

f(x) = -x² + 6x + 16

So the answer is f(x) = -x² + 6x + 16.

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Answer:

3rd choice down

f(x) = -1/2x + 8

Step-by-step explanation:

find the slope of the line using the 2 given points:

slope = m = (8-14) / (0--12) = -6/12 = -1/2

read the y intercept right off the graph at point (0,8):

b = 8

f(x) = mx + b = -1/2x + 8

The polynomial that must be added to x^(2)-2x+6 is 2x^(2) + 9x - 6.

To find the product of the two polynomials (2x^(4)y)(3x^(5)y^(8)), we need to use the distributive property and combine like terms.

The distributive property states that a(b+c) = ab+ac. So, we can distribute the first polynomial to each term in the second polynomial:

(2x^(4)y)(3x^(5)y^(8)) = (2x^(4)y)(3x^(5)) + (2x^(4)y)(y^(8))

Next, we can combine like terms by adding the exponents of the variables:

= 6x^(4+5)y^(1+8)

= 6x^(9)y^(9)

So, the product of the two polynomials is 6x^(9)y^(9).

To find the polynomial that must be added to x^(2)-2x+6 so that the sum is 3x^(2)+7x, we can set up an equation:

x^(2)-2x+6 + (a+bx+cx^(2)) = 3x^(2)+7x

Then, we can rearrange the equation to solve for the polynomial:

a+bx+cx^(2) = 3x^(2)+7x - x^(2) + 2x - 6

a+bx+cx^(2) = 2x^(2) + 9x - 6

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The value of k is 1, which is the value of g(x) (and f(x)) when x = -3 or x = 3.

We can determine the type of transformation and the value of k for each of the aforementioned functions using the tables provided for f(x) and g(x).

g(x) = 3f(x) (x)

Here, there occurs a vertical stretch/compression transformation. The function g(x) is a three-fold vertical expansion or contraction of f(x). G(x) has a value of 4, which is identical to the value of k, whether x = -6 or = 6.

g(x) = f(3x) (3x)

Here, there occurs a horizontal stretch/compression transformation. A horizontal stretch or compression of f(x) by a factor of 1/3 results in the function g(x). When x = -3 or x = 3, the value of k is 1, which is also the value of g(x) and f(x).

g(x) = (1/3)f(x) (x)

Here, there occurs a vertical stretch/compression transformation. A vertical stretch or compression of f(x) by a factor of 1/3 results in the function g(x). G(x) has a value of 4, which is identical to the value of k, whether x = -6 or = 6.

g(x) = f(x/3)

Here, there occurs a horizontal stretch/compression transformation. The function g(x) is a three-fold horizontal stretching or compression of f(x). When x = -3 or x = 3, the value of k is 1, which is also the value of g(x) and f(x).

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This property can be applied to any number of lines as long as they are all parallel to the same line.

The statement "if n I| m and m ll then 1 || n" is not valid as the symbols used are not correct. The correct statement should be "if l || m and m || n then l || n". This means that if line l is parallel to line m and line m is parallel to line n, then line l is also parallel to line n. This is known as the transitive property of parallel lines.

Similarly, the statement "if k 11,11 m and m In then k \ n" is not valid as the symbols used are not correct. The correct statement should be "if k || l, l || m, and m || n then k || n". This means that if line k is parallel to line l, line l is parallel to line m, and line m is parallel to line n, then line k is also parallel to line n. This is also an application of the transitive property of parallel lines.

In conclusion, the transitive property of parallel lines states that if two lines are parallel to the same line, then they are also parallel to each other. This property can be applied to any number of lines as long as they are all parallel to the same line.

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Answer:

The answer is going to be 4r (2r + 3)

No common factors

For the first set of fractions, the inequality symbol would be <, as 8/9 is less than 10/12. The rationale for this is that when fractions have different denominators, the fraction with the smaller denominator is always less. For the second set of fractions, the inequality symbol would be >, as -5/6 is greater than -6/8. The rationale for this is that when two fractions have the same denominator, the fraction with the larger numerator is always greater. The fractions that are completely simplified are 8/9, -5/6, and -6/8. This is because they cannot be reduced any further as they have no common factors.

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