Russell calculated the area of the triangle below, his work is shown, Although russel was told his work is correct

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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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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Answer:

Step-by-step explanation:

A cereal box manufacturer changes the sizeof the box to increase the amount of cereal itcontains. The equations 12 + 7.6n and 6 + 8n,where n is the number of smaller boxes, areboth representative of the amount of cereal thatthe new larger box contains. How many smallerboxes equal the same amount of cereal in thelarger box?

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.

Answer: 75 inches

Step-by-step explanation:

Using Pythagorean's Theorem, a² + b² = c², let a represent the length of the bed.

a² + 40² = 85²

a² + 1600 = 7225

a² = 5625

a = 75

The length of the bed is 75 inches.

Hope this helps!

Answer: 75

Step-by-step explanation: We can think of Aubrey’s bed as a triangle, Since the area doesn't matter. The base would be width (40) and the hypotenuse (length from corners) would be 85. So, since A^2+B^2=C^2 and c is 85 and a is 40. The equation is 40^2+?^2=85^2 so if we solve the numbers whit exponents we would get this: 1600+?=7225. Then we would just subtract 1600 from 7225 which is: 5625. Now we are not done. 5625 is just the square version of 5625. So we would need to find the square root. Which is 75.

Answer:

Step-by-step explanation:

Let's assume that the number of child tickets sold is x and the number of adult tickets sold is y.

From the problem statement, we know that:

The total number of tickets sold is 412, so x + y = 412.

The total amount of money collected from selling these tickets is 2,725.50, so 3x + 7.50y = 2,725.50.

We can use these two equations to solve for x and y. One way to do this is to use substitution:

Solve the first equation for x: x = 412 - y.

Substitute this expression for x into the second equation: 3(412 - y) + 7.50y = 2,725.50.

Simplify and solve for y: 1,236 - 3y + 7.50y = 2,725.50, so 4.50y = 1,489.50, and y = 330.

Use the first equation to find x: x = 412 - y, so x = 82.

Therefore, Kell High School sold 82 child tickets and 330 adult tickets.

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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For n≥2, the corresponding recursive function is f (1) =3f(n)=f(n1) +5.

In mathematics, a function is a rule that pairs each element from the domain with exactly one from the range or codomain of two sets.

In a recursive function, the output value at a certain input value is defined as a function of the output value at the previous input value. In this instance, we may use the definition to derive the recursive function from the explicit function:

f (n) = 5n - 2 f (n) = 5n - 3 f (n) = 5(2) - 8 f (n) = 5(3) - 13

The right response is: A. When n=2, f(1) = 2f(n)= f(n1) + 5.

As a result, the recursive function can be written as: f (1) =3f(n)=f(n1) +5 for n2.

Thus, for n≥2, the analogous recursive function is f (1) =3f(n)=f(n1) +5.

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The correct answer is C. (256m^(4)n^(8)p^(4))/(81).

To simplify ((4m^(2)n^(2)p^(2))/(3mp))^(4), we need to first apply the power of 4 to each term inside the parentheses. This gives us:

(4^(4)m^(8)n^(8)p^(8))/(3^(4)m^(4)p^(4))

Next, we can simplify the terms with the same base by subtracting the exponents. This gives us:

(256m^(4)n^(8)p^(4))/(81)

Therefore, the correct answer is C. (256m^(4)n^(8)p^(4))/(81).

It is important to note that we assumed that the denominator does not equal zero, as dividing by zero is undefined.

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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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Answer:

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

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

Th expression for total price of the supplies is $ 12.91 .

Any mathematical statement with variables, numbers, and an arithmetic operation between them is called an expression or an algebraic expression. For instance, the expression 4m + 5 has the terms 4m and 5 as well as the variable m of the supplied expression, all of which are separated by the arithmetic sign +.

Anything that is variable, or without a fixed value, is a variable. Alphabetic characters like a, b, c, m, n, p, x, y, z, and so on are typically used to denote expression variables. By combining several variables and numbers, we can create a wide range of expressions.

Given : price of nails, n = $1.29/b

           price of washers, w = $0.79/b

           price of bolts, b = $2.39/b

He bought 2 pounds of nails, 4 pounds of washers, and 3 pounds of bolts.

So, The total supplies will be :

= $1.29/b × 2 + $0.79/b × 4 + $2.39/b × 3

= 2.58 + 3.16 + 7.17

= $ 12.91

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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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50 pizzas can be sold in 10 hours, according to this equation p = 5h.

In mathematics, an equation is a statement that asserts the equality of two expressions. An equation typically consists of two expressions separated by an equal sign (=). The expression on the left side of the equal sign is usually called the "left-hand side" (LHS) of the equation, while the expression on the right side of the equal sign is called the "right-hand side" (RHS) of the equation.

Let's use the variable p to represent the number of pizzas sold, and the variable h to represent the number of hours it takes to sell those pizzas. We can use the formula for finding the rate of sales (also known as the unit rate) to write an equation that represents the situation:

rate = amount of sales ÷ time

In this case, we know that 35 pizzas are sold in 7 hours. So, the rate of sales is:

rate = 35 pizzas ÷ 7 hours

Simplifying this expression, we get:

rate = 5 pizzas per hour

Therefore, the equation that represents the situation is:

p = 5h

This equation tells us that the number of pizzas sold (p) is equal to 5 times the number of hours it takes to sell those pizzas (h). For example, if we want to know how many pizzas can be sold in 10 hours, we can plug in h = 10 and solve for p:

p = 5h

p = 5(10)

p = 50

Therefore, 50 pizzas can be sold in 10 hours, according to this equation p = 5h

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Answer:

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

Step-by-step explanation:

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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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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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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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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1. To raise prices, the best alternative is to increase the price of 200-level seats to $60 or higher. To lower prices, the best alternative is to reduce the price of 300-midcourt seats to $35 or lower.

2. Administration could raise 300 mid-level seat prices to make them as attractive as the next best alternative. To calculate the optimal level, the cost of the next best alternative (200-level seats) needs to be compared with the cost of the 300-midcourt seats. If the cost of the 300-midcourt seats is lower than the cost of the 200-level seats, administration should raise the price of the 300-midcourt seats to match the cost of the 200-level seats. The attractiveness of the two options should be assessed to determine if the 300-midcourt seats should be priced at the calculated level.

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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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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:

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

(a) By help of induction, it is proved the sequence is monotonically increasing for all n ≥ 1.

(b) The sequence is bounded above by 3 for all n ≥ 1.

(c)  Applying the Monotonic Sequence Theorem, it is proved that the limit of the sequence exists.

(d) limn→[infinity] an is 2.

(e) The series X[infinity] n=1 an is convergent

(a) To show that the sequence is monotonically increasing, we can use induction. Let's first consider the base case, n = 1. We have a1 = √2 and a2 = √2 + a1 = √2 + √2 > a1, so the sequence is increasing for n = 1. Now, let's assume that the sequence is increasing for n = k, so ak+1 > ak. Then, for n = k+1, we have ak+2 = √2 + ak+1 > √2 + ak = ak+1, so the sequence is also increasing for n = k+1. Therefore, by induction, the sequence is monotonically increasing for all n ≥ 1.

(b) To show that the sequence is bounded above by 3, we can also use induction. Let's first consider the base case, n = 1. We have a1 = √2 < 3, so the sequence is bounded above by 3 for n = 1. Now, let's assume that the sequence is bounded above by 3 for n = k, so ak < 3. Then, for n = k+1, we have ak+1 = √2 + ak < √2 + 3 = 3.2 < 3, so the sequence is also bounded above by 3 for n = k+1. Therefore, by induction, the sequence is bounded above by 3 for all n ≥ 1.

(c) By the Monotonic Sequence Theorem, if a sequence is both monotonically increasing and bounded above, then the limit of the sequence exists. Since we have shown that the sequence is monotonically increasing in part (a) and bounded above by 3 in part (b), we can conclude that the limit of the sequence exists.

(d) To find the limit of the sequence, we can use the fact that an+1 = √2 + an for all n ≥ 1. Taking the limit of both sides as n approaches infinity, we get limn→∞ an+1 = limn→∞ √2 + an. Since the limit of the sequence exists, we can write this as L = √2 + L, where L is the limit of the sequence. Solving for L, we get L = 2, so the limit of the sequence is 2.

(e) To determine whether the series X∞ n=1 an is convergent, we can use the fact that the limit of the sequence is 2. Since the sequence converges to 2, the terms of the sequence are getting closer and closer to 2 as n approaches infinity. This means that the terms of the series are getting smaller and smaller, and the series is convergent.

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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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Step-by-step explanation:

Lets find the slope of the line first so we can write the equation.

Counting the slope, we can see the slope of the line is [tex]\frac{3}{1}[/tex] or 3, so we have to write the equation of the line in slope intercept form [tex]y=mx+b[/tex] where m is the slope and b is the y intercept.

We know that the y intercept is -4 by looking at the graph, so we simply plug in our slope and y intercept.

[tex]y=3x-4[/tex]

To tell if equations are parallel or perpendicular:

Parallel:  The slope is the same

Perpendicular: The slope is the opposite reciprocal

Lets look at the equations and see if there parallel:

1. [tex]y=-3x+10[/tex] is neither.

2. The equation of the line is in point slope form, however we are already given the slope in the equation. The slope is [tex]-\frac{1}{3}[/tex], which is the opposite reciprocal of 3, therefore it is perpendicular.

3. [tex]\frac{1}{3}[/tex] is not the opposite reciprocal of 3, it is neither.

4. The equation of the line is in standard form, which means we must solve for y to get it in slope intercept form

[tex]-3x+y=1[/tex]
Subtract -3x on both sides

[tex]y=1-(-3x)[/tex]

Simplify

[tex]y=3x+1[/tex]

The equation has the same slope, so it is parallel.