8. Consider the D.E. yy'= -x +
1/2
a. Find the implicit general solution of this
equation. What is the condition that c
should satisfied? (c is the constant that
appears in the solution).
b. (T) is the family of curves of the
general solution in an orthonormal
system. What is the nature of this graph?
(such curves are called integral curves of
the D.E.)
c. Find the graph (T) that passes through
the origin O(0, 0).

8. Consider The D.E. Yy'= -x +1/2a. Find The Implicit General Solution Of Thisequation. What Is The Condition

Answers

Answer 1

The implicit general solution is 0.5y² = -0.5x² + 0.5x + C, here C should pass through the origin of the circle. The family of curves (T)  represents the integral curve. The graph (T) is represented below.

a. To find the implicit general solution of the given differential equation, we can integrate both sides with respect to x. Let's start by rewriting the equation:

yy' = -x + 1/2

Integrating both sides:

∫ yy' dx = ∫ (-x + 1/2) dx

Using integration by parts on the left side, let u = y and dv = y' dx:

[tex]\int u dv = uv - \int v du\\\\y\int dy = \int (-x + 1/2) dx\\\\1/2 y^2 = -1/2 x^2 + 1/2 x + C\\\\0.5y^2 = -0.5x^2+0.5x+C[/tex]

Where C is the constant of integration. This is the implicit general solution of the given differential equation.

b. The family of curves (T) that represents the general solution in an orthonormal system is known as the integral curves of the differential equation.

c. To find the graph (T) that passes through the origin O(0, 0), we substitute the point (x, y) = (0, 0) into the implicit general solution and solve for C:

[tex]1/2(0)^2 = -1/2(0)^2 + 1/2(0) + C\\\\0 = 0 + 0 + C\\\\\C = 0[/tex]

So the graph (T) that passes through the origin is given by:

[tex]1/2 y^2 = -1/2 x^2 + 1/2 x[/tex]

This equation represents the specific curve that satisfies both the differential equation and the condition of passing through the origin.

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8. Consider The D.E. Yy'= -x +1/2a. Find The Implicit General Solution Of Thisequation. What Is The Condition

Related Questions

4. P/E Ratios. Favorita Candy’s stock is expected to earn $2.40 per share this year. Its P/E ratio is 18. What is the stock price? (LO7-1)

Answers

Answer:

2.4*18 = $43.2

stock price is $43.2

Step-by-step explanation:

What is the perimeter of a rectangle 15x4

Answers

Answer:

38

Step-by-step explanation:

perimeter = 2(l+b)

Where l is the length of the rectangle

b is the breadth of the rectangle

P = 2(15+4)

P = 2 × 19

P = 38

How many miles does he run in one year

Answers

Answer Key:

1. Since the question says Mr. Smith runs 2.7 miles every day of the week, you will need to multiply it with 365, the days of the year. The total answer you would get D. 985.5 miles.

| I just want to help you with #2 anyway

Here are the scores from 16 golfers who played a round of 18 holes:

68
68
69
74
69
71
71
73
72
75
75
72
69
70
76
74

Using the data above, complete the frequency table below:

68
69
70
71
72
73
74
75
76

Answers

Answer:

Score                      Frequency

68                              02

69                              03

70                              01

71                               02

72                              02

73                              01

74                              02

75                              02

76                              01

Follow the guided instructions below to rotate the figure 90° counter-clockwise about
the origin.
Draw a circle centered at the center of rotation, such that one of the vertices
of the figure is on the circle.
10 9 -8
5 4 3 2
10
3
5
9 10
-X

Answers

When rotated 90 degrees, counterclockwise direction the new coordinates will result in the attached image.

What are the new coordinates?

The old coordinate where were rotated are:

A(-5,8)

B (-1, 7)

C(-3, 5)

D(-4, 2)

To rotate a point counterclockwise about the origin, we switch the x and y coordinates and change the sign of the new x  -coordinate.

The new coordinates are after 90 degrees, counterclockwise  are

A' = (-8, -5)

B' = (-7, -1)

C' = (-5, -3)

D' = (-2, -4)

See attached image.

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Full Question:

Although part of your question is missing, you might be referring to this full question:

See attached image.


Find the probability that
event A or B takes place.
A
7
19
B
5
19
others
7
19

Answers

Answer:the probability that event A or event B takes place is 12/19.

Finding Missing Angles in a Polygon

Answers

Answer:

120

61+97+82=240 There are 360 degrees in a rectangle. 360-240 is 120

Use the table to work out the values of
a
,
b
,
c
, and
d
.

x
y
=
3
x
+
2

3
a

2

4

1
b
0
2
1
c
2
d
a
=

b
=

c
=

d
=

Answers

I did this and got c that’s correct

A ladder 8 m long leans against the wall of a building. if the foot of the ladder makes an angle of 78 degrees with the ground. how far is the base of the building from the wall?

step by step:​

Answers

Length of the base of the building from the wall is, 1.68 m

We have to given that;

A ladder 8 m long leans against the wall of a building.

And, the foot of the ladder makes an angle of 78 degrees with the ground.

Now, We know that;

cos x = Base / Hypotenuse

Here, Hypotenuse = 8 m

And, Length of the base of the building from the wall = Base = x

Hence, We get;

cos 78 = x / 8

0.21 = x / 8

x = 0.21  x 8

x = 1.68 m

Thus, Length of the base of the building from the wall is, 1.68 m

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A small company borrows money and remains in debt to its lenders for a period of time. The function f(x)=-8x^2+8x+50 represents the amount of debt the company has, in thousands of dollars, x years after opening its business.
Approximately how many years after opening its business will the company be out of debt?
3.3 years
3.7 years
3.1 years
3.5 years

Answers

Answer:  3.1 years (choice C)

===============================================

Work Shown:

x = number of years, some positive real number

f(x) = debt level in thousands of dollars

The company is out of debt when f(x) = 0

We go from

f(x)=-8x^2+8x+50

to

0 = -8x^2+8x+50

We'll use the quadratic formula to solve.

Plug in: a = -8, b = 8, c = 50

[tex]x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-8\pm\sqrt{8^2-4(-8)(50)}}{2*(-8)}\\\\x = \frac{-8\pm\sqrt{1664}}{-16}\\\\x = \frac{-8+\sqrt{1664}}{-16} \ \text{ or } \ x = \frac{-8-\sqrt{1664}}{-16}\\\\x \approx -2.0495\ \text{ or } \ x \approx 3.0495\\\\x \approx -2.1\ \text{ or } \ x \approx 3.1\\\\[/tex]

Ignore the negative x value. It doesn't make sense to have a negative number of years.

The only practical solution is approximately 3.1 years.

Determine the 9th term of the geometric sequence 3,6,12,24

Answers

The solution is 768  is the correct answer, is the 9th term of the geometric sequence 3,6,12,24.

Given:

The geometric sequence 3,6,12,24.

Required:

Find the 6th term of the geometric sequence.

Explanation:

The given sequence is 3,6,12,24.

The nth term of the sequence is given by the formula:

an = a* r^n-1

Where a = first term and r = common ratio

From the given sequence

a = 3, r = 6/3 = 2

Then 9th term is:

a9 = 3 * 2^9-1

    = 3* 2^8

    =768

Final answer:

The solution is 768  is the correct answer, is the 9th term of the geometric sequence 3,6,12,24.

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What is the solution to this system of equations 5x-2y=-16 4x -5y=-23

Answers

The solution to the given system of equations is (-158/85, 57/17).

The system of linear equations are 5x-2y=-16 ------(i) and 4x -5y=-23 ------(ii).

Multiply equation (i) by 4, we get

20x-8y= -48 -----(iii)

Multiply equation (ii) by 5, we get

20x-25y=-105 -----(iv)

Subtract equation (iii) from equation (iv), we get

20x-25y-(20x-8y)=-105+48

-17y=-57

y=57/17

Substitute y=57/17 in equation (i), we get

5x-2(57/17)=-16

5x-114/17=-16

5x=-16+114/17

5x=(-272+114)/17

x= -158/85

Therefore, the solution to the given system of equations is (-158/85, 57/17).

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please help! maths functions

Answers

Answer:

[tex]\textsf{1)} \quad f(x)=-\dfrac{1}{4}(x-2)^2+\dfrac{1}{2}[/tex]

[tex]\textsf{2)} \quad g(x)=-\dfrac{1}{4}(x+2)^2+\dfrac{1}{2}[/tex]

[tex]\textsf{3)} \quad h(x)=\dfrac{1}{4}(x-2)^2-\dfrac{1}{2}[/tex]

[tex]\textsf{4)} \quad p(x)=\dfrac{1}{4}(x+2)^2-\dfrac{1}{2}[/tex]

Step-by-step explanation:

From inspection of the given graph, function f(x) is a parabola that opens downwards. Its vertex is (2, 1/2) and its y-intercept is (0, -1/2).

To determine the equation of f(x), we can use the vertex formula:

[tex]\boxed{\begin{minipage}{5.6 cm}\underline{Vertex form of a quadratic equation}\\\\$y=a(x-h)^2+k$\\\\where:\\ \phantom{ww}$\bullet$ $(h,k)$ is the vertex. \\ \phantom{ww}$\bullet$ $a$ is some constant.\\\end{minipage}}[/tex]

Substitute the vertex (2, 1/2) and the y-intercept (0, -1/2) into the formula to determine the value of a:

[tex]\begin{aligned}y&=a(x-h)^2+k\\\\\implies -\dfrac{1}{2}&=a(0-2)^2+\dfrac{1}{2}\\\\-1&=4a\\\\a&=-\dfrac{1}{4}\end{aligned}[/tex]

Substitute the found value of a and the vertex into the formula to create an equation for f(x):

[tex]f(x)=-\dfrac{1}{4}(x-2)^2+\dfrac{1}{2}[/tex]

[tex]\hrulefill[/tex]

To reflect a function in the y-axis, negate the x-value of each point, but leave the y-value the same:

Reflection in the y-axis:  (x, y) → (-x, y)

Therefore, if g(x) is f(x) reflected in the y-axis, replace x with -x:

[tex]\begin{aligned}g(x)&=f(-x)\\\\&=-\dfrac{1}{4}(-x-2)^2+\dfrac{1}{2}\\\\&=-\dfrac{1}{4}(x+2)^2+\dfrac{1}{2}\end{aligned}[/tex]

The vertex of g(x) is (-2, 1/2) and its y-intercept is (0, -1/2).

[tex]\hrulefill[/tex]

To reflect a function in the x-axis, negate the y-value of each point, but leave the x-value the same:

Reflection in the x-axis:  (x, y) → (x, -y)

Therefore, if h(x) is f(x) reflected in the x-axis, then:

[tex]\begin{aligned}h(x)&=-f(x)\\\\&=-\left(-\dfrac{1}{4}(x-2)^2+\dfrac{1}{2}\right)\\\\&=\dfrac{1}{4}(x-2)^2-\dfrac{1}{2}\end{aligned}[/tex]

The leading coefficient is positive, so the parabola opens upwards.

The vertex of h(x) is (2, -1/2) and its y-intercept is (0, 1/2).

[tex]\hrulefill[/tex]

If p(x) is g(x) reflected in the y-axis, then:

[tex]\begin{aligned}p(x)&=-g(x)\\\\&=-\left(-\dfrac{1}{4}(-x-2)^2+\dfrac{1}{2}\right)\\\\&=\dfrac{1}{4}(-x-2)^2-\dfrac{1}{2}\\\\&=\dfrac{1}{4}(x+2)^2-\dfrac{1}{2}\end{aligned}[/tex]

The leading coefficient is positive, so the parabola opens upwards.

The vertex of p(x) is (-2, -1/2) and its y-intercept is (0, 1/2).

Harvey bought a frame in which he put his family's picture.

g4130717 21 in.
15 in.


What is the area of the frame not covered by the picture?

The area is
square inches.

Answers

The area of the given rectangular frame is: 352 in²

What is the area of the rectangle?

The formula for the area of a rectangle is expressed as:

A = L * W

Where:

A is Area

L is Length

W is width

Now, we are told that the parameters are:

Width of frame = 16 inches

Length of frame = 22 inches

Thus:

Area of frame = 22 * 16

Area = 352 in²

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Harvey bought a frame in which he put his family's picture. Frame is 16 inches wide and 22 inches length. Picture area is 12 inches wide and 18 inches length. What is the area of the frame

Determine if the sequence is arithmetic or geometric, and then find the 10th term for the sequence
6, 12, 18, 24, ...

Please help and explain please

Answers

Answer:

The 10th term of the sequence is 60.

Step-by-step explanation:

The given sequence is arithmetic because each term is obtained by adding 6 to the previous term. To find the 10th term, we use the formula for the nth term of an arithmetic sequence:

a_n = a_1 + (n-1)d

where a_1 is the first term, d is the common difference, and n is the term number we want to find.

For this sequence, a_1 = 6 and d = 6, so we have:

a_10 = 6 + (10-1)6

a_10 = 6 + 54

a_10 = 60

Therefore, the 10th term of the sequence is 60.

arc length of AB
angle ab=115
radius bc=13

Answers

The arc length of arc AB is approximately 8.3076π units.

To find the arc length of arc AB, we need to know the angle subtended by the arc and the radius of the circle. In this case, we are given that angle AB is 115 degrees and the radius BC is 13 units.

The formula for the arc length (L) of a circle is given by L = (θ/360) * 2πr, where θ is the central angle in degrees and r is the radius of the circle.

Substituting the given values into the formula, we have:

L = (115/360) × 2π(13)

Simplifying this expression:

L = (0.3194) × 2π(13)

L ≈ 0.3194 × 26π

L ≈ 8.3076π

So, the arc length of arc AB is approximately 8.3076π units.

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On a coordinate plane, parallelogram A B C D has points (3, 6), (6, 5), (5, 1), and (2, 2). What is the area of parallelogram ABCD? 13 square units 14 square units 15 square units 16 square units Mark this and return

Answers

To find the area of parallelogram ABCD, we can use the formula:

Area = base x height

We can find the base by taking the distance between points A and B, or between points C and D. We can find the height by taking the distance between points B and C, or between points A and D.

Using the distance formula, we can find that the distance between points A and B is sqrt(10), and the distance between points B and C is sqrt(26).

Since both pairs of opposite sides of a parallelogram are parallel and congruent, we can use either pair of distances as the base and either pair of distances as the height.

Therefore, the area of parallelogram ABCD is:

Area = base x height
Area = sqrt(10) x sqrt(26)
Area = sqrt(260)
Area = 2sqrt(65)

So the area of parallelogram ABCD is approximately 16 square units.

14. log₂ 4 + log₂ (c-9) = 5

Answers

The logarithmic eqaution log₂ 4 + log₂ (c-9) = 5 has its solution to be 17

How to evaluate the logarithmic eqaution

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

log₂ 4 + log₂ (c-9) = 5

Apply the product rule of logarithm

So, we have

log₂(4 * (c-9)) = 5

This can then be expressed as

(4 * (c-9)) = 2⁵

Divide both sides by 4

c - 9 = 2³

So, we have

c - 9 = 8

When evaluated, we have

c = 17

Hence, the logarithmic eqaution has its solution to be 17

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Drag each symbol to the correct location on each comparison.

Use <, >, or = to complete each comparison.

Answers

The comparison of each expression is completed as shown below

7/5 x 11 / 10 > 7 / 5

7/5 x 3 / 3 = 7 / 5

7/5 x 4 / 9 < 7 / 5

What are inequality signs in mathematics?

In mathematics, inequality signs are symbols used to compare the relative size or value of two numbers or expressions. The most common inequality signs are:

Greater than: ">"

This symbol indicates that the number or expression on the left side is greater than the number or expression on the right side. For example, 5 > 3 means "5 is greater than 3."

Less than: "<"

This symbol indicates that the number or expression on the left side is less than the number or expression on the right side. For example, 2 < 7 means "2 is less than 7."

Greater than or equal to: "≥"

This symbol indicates that the number or expression on the left side is greater than or equal to the number or expression on the right side. For example, 4 ≥ 4 means "4 is greater than or equal to 4."

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What is angles QRU, VUW, TUW
PLEASE HELP ME!

Answers

The value of angle QRU is 102° and the value of angle VUW is 72°.

As we can see, the line QRS and the Line TUv are parallel to each other,

So, the angle ∠wuv and ∠urs are the same side interior angle,

So ∠wuv =∠urs

Also from the properties of the supplementary angles,

∠urs and ∠QRu are supplementary angles,

Thus,

∠urs +∠QRu = 180

4x + 6x = 180

10x = 180

x = 18 degrees

Therefore, the value of angle QRU = 18 * 6 = 102 degrees

and the value of angle VUW = 4 *18 = 72 degrees.

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pls someone answer, i beg

Concept Note:

The quartiles are points that divide a ranked data into four equal parts. Each set of data has three quartiles.

1. First Quartile (Q1) is a number such that at most one-fourth or 25% of the data are smaller in value than Q1, and at most three-fourth or 75% are larger. Q₁ is sometimes called the lower quartile.

2. Second Quartile (Q2) is a number such that one-half or 50% of the data are below and above in value than Q2. Q2 is obviously the median. Hence, the former name is seldom used.

3. Third Quartile (Q3) is a number such that at most three-fourth or 75% of the data are smaller in value than Q3, and at most one-fourth or 25% are larger. Q3 is sometimes called the upper quartile.

Quartiles can be presented by the diagram below when the given data is arranged in increasing order.

after reading that on top ^
read image and try |
to answer pls |



Question:
1. Consider the set of data A = {12, 16, 23, 25, 33, 35, 41}. Find tje first, second, and third quartile

2. Consider the set of data A = {12, 8, 18, 5, 3, 19, 9}. Find the first, second, and third quartile.​

Answers

The first quartile is 19, the second quartile (median) is 25, and the third quartile is 39 for the given data set A.

We have,

To find the first quartile, second quartile (which is also the median), and third quartile of a data set, we need to arrange the data in ascending order first.

Arranging the data set A = {15, 19, 23, 25, 37, 39, 43} in ascending order:

15, 19, 23, 25, 37, 39, 43

First, let's find the second quartile (median):

Since there are 7 data points, the median will be the value in the middle, which is the fourth value in the sorted data set:

Median = 25

Next, let's find the first quartile:

To find the first quartile, we need to find the median of the lower half of the data set. In this case, the lower half of the data set is {15, 19, 23}:

Since there are 3 data points in the lower half, the median will be the second value in the lower half:

First Quartile = 19

Finally, let's find the third quartile:

To find the third quartile, we need to find the median of the upper half of the data set. In this case, the upper half of the data set is {37, 39, 43}:

Since there are 3 data points in the upper half, the median will be the second value in the upper half:

Third Quartile = 39

Therefore,

The first quartile is 19, the second quartile (median) is 25, and the third quartile is 39 for the given data set A.

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(1 point) The shelf life of a battery produced by one major company is known to be normally distributed, with a mean life of 4.2 years and a standard deviation of 0.8 years. Using the expanded empirical rule, what is the probability in decimal form that a randomly chosen battery will (a) last fewer than 5 years? Answer: (b) last between 1.8 and 6.6 years? Answer: (c) last more than 3.664 years? Answer:​

Answers

The probability that a randomly chosen battery will last more than 3.664 years is 0.9673.

(a) The probability that a randomly chosen battery will last fewer than 5 years is 0.8413. This is calculated by subtracting the cumulative probability of 4.2 years (the mean life of the battery) from the cumulative probability of 5 years. We can calculate the cumulative probability using the z-score formula: z = (x - μ) / σ, where μ is the mean and σ is the standard deviation. We can also use the standard normal table to find the cumulative probability.

Z = (5 - 4.2) / 0.8 = 0.75

Cumulative probability of 5 years = 0.7734 (from the standard normal table)

Cumulative probability of 4.2 years = 0.7257 (from the standard normal table)

Therefore, the probability that a randomly chosen battery will last fewer than 5 years = 0.7734 - 0.7257 = 0.8413

(b) The probability that a randomly chosen battery will last between 1.8 and 6.6 years is 0.9545. This is calculated by subtracting the cumulative probability of 1.8 years from the cumulative probability of 6.6 years.

Z = (1.8 - 4.2) / 0.8 = -1.5

Cumulative probability of 1.8 years = 0.0668 (from the standard normal table)

Z = (6.6 - 4.2) / 0.8 = 1.75

Cumulative probability of 6.6 years = 0.9619 (from the standard normal table)

Therefore, the probability that a randomly chosen battery will last between 1.8 and 6.6 years = 0.9619 - 0.0668 = 0.9545

(c) The probability that a randomly chosen battery will last more than 3.664 years is 0.9673. This is calculated by subtracting the cumulative probability of 3.664 years from the cumulative probability of 1.

Z = (3.664 - 4.2) / 0.8 = -0.55

Cumulative probability of 3.664 years = 0.7118 (from the standard normal table)

Cumulative probability of 1 = 0.8413 (from the standard normal table)

Thus, 0.8413 - 0.7118 = 0.9673

Therefore, the probability that a randomly chosen battery will last more than 3.664 years is 0.9673.

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1.) A newspaper reporter wrote an article about a recent football game 8,749 people attended the game, but the reporter rounded the number to the nearest hundred in the article. Which number did the reporter use?​

Answers

Answer:

8750

Step-by-step explanation:

Which value is NOT a solution of 8x^3 – 1 = 0

Answers

The solutions to the equation 8x^3 - 1 = 0 are x = 1/2, x = (-2 + 2√2i)/8, and x = (-2 - 2√2i)/8.None of the given Values is NOT a solution of the equation.

The solution(s) of the equation 8x^3 - 1 = 0, we need to determine the values of x that satisfy the equation. We can solve this equation by setting it equal to zero and factoring:

8x^3 - 1 = 0

(2x)^3 - 1^3 = 0

(2x - 1)(4x^2 + 2x + 1) = 0

Now we can find the values of x that make each factor equal to zero:

2x - 1 = 0

x = 1/2

4x^2 + 2x + 1 = 0

Using the quadratic formula, we can solve for x and find two additional solutions:

x = (-2 ± √(-8))/8

x = (-2 ± 2√2i)/8

Therefore, the solutions to the equation 8x^3 - 1 = 0 are x = 1/2, x = (-2 + 2√2i)/8, and x = (-2 - 2√2i)/8.None of the given values is NOT a solution of the equation.

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Ben starts walking along a path at 2 mi/h. One and a half hours after Ben leaves, his sister Amanda begins jogging along the same path at 7 mi/h. How long will it be before Amanda catches up to Ben?

Answers

Amanda will catch up to Ben after approximately 36 minutes.

How to determine when Amanda catches up

To determine how long it will take for Amanda to catch up to Ben, we can set up an equation based on their respective speeds and the time difference.

the distance traveled by Ben is given by:

Distance = Speed * Time

Distance = 2 mi/h * (t + 1.5) h

the distance traveled by Amanda is given by:

Distance = Speed * Time

Distance = 7 mi/h * t h

equating both distances

2(t + 1.5) = 7t

2t + 3 = 7t

3 = 5t

t = 3/5

Therefore, it will take Amanda 3/5 of an hour (or 36 minutes) to catch up to Ben.

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8. ABC Company has sales price per unit for its only product at br. 13. The variable cost per unit is br. 5. In the year 2003 the company's sales was br. 1,040,000 which was 5000 units above the break-even output. a) Determine the fixed cost b) Compute the variable expense at the point of break-even.​

Answers

a) The fixed cost for ABC Company in the year 2003 was Br. 600,000.

b) The variable expense at the break-even point for 2003 was Br. 375,000.

What is the break-even point?

The break-even point refers to the sales units or revenue at which the total sales revenue equals the total costs (variable and fixed).

At the break-even point, ABC Company does not generate any profit or incur a loss.

Sales price per unit = Br. 13

Variable cost per unit = Br. 5

Contribution margin per unit = Br. 8 (Br. 13 - Br. 5)

Contribution margin ratio = 0.6154 (Br. 8 ÷ Br. 13)

Sales revenue for 2003 = Br. 1,040,000

Sales units for 2003 = 80,000 units (Br. 1,040,000 ÷ Br. 13)

Break-even units for 2003 = 75,000 units (80,000 - 5,000)

Break-even sales revenue = Br. 975,000 (Br. 13 x 75,000)

Variable expense at the break-even point = Br. 375,000 (Br. 5 x 75,000)

Fixed expenses = Br. 600,000 (Br. 975,000 - Br. 375,000)

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You are running around the circular track x^2+y^2 = 14400 at 3 meters per second.

a) starting at (120,0) and running counter-clockwise, what are your coordinates after 20 minutes?

b) what would be your coordinates if you had started at (0,120), running for 40 minutes

Answers

It  had started at (0,120) and ran for 40 minutes, Coordinates would be approximately (60.00, 103.92).

a) To find the coordinates after 20 minutes of running counter-clockwise starting at (120,0), we need to determine the distance covered in that time period.

Since you are running at a speed of 3 meters per second, in 20 minutes (or 20 * 60 = 1200 seconds), you would have covered a distance of 3 * 1200 = 3600 meters.

Given that the equation of the circular track is x^2 + y^2 = 14400, which represents a circle with a radius of 120 units (since the radius squared is 14400), we can determine your new position on the track.

Starting from (120,0) and moving counter-clockwise, you would have traveled a distance of 3600 meters along the circumference of the circle. This corresponds to a fraction of 3600 / (2 * π * 120) = 15 / π of the circle's circumference.

Using this fraction, we can calculate the angle in radians by multiplying it by 2π. Therefore, the angle is 2π * (15 / π) = 30 radians.

To find the new coordinates, we can use the polar coordinates formula:

x = r * cos(θ)

y = r * sin(θ)

Plugging in the values:

x = 120 * cos(30) ≈ 103.92

y = 120 * sin(30) ≈ 60.00

So, after 20 minutes of running counter-clockwise, your coordinates would be approximately (103.92, 60.00).

b) If you had started at (0,120) and ran for 40 minutes, the process is similar. Since you are running at a speed of 3 meters per second, in 40 minutes (or 40 * 60 = 2400 seconds), you would have covered a distance of 3 * 2400 = 7200 meters.

Using the same circle equation x^2 + y^2 = 14400, we determine the new position on the track.

Starting from (0,120) and moving counter-clockwise, you would have traveled a distance of 7200 meters along the circumference of the circle. This corresponds to a fraction of 7200 / (2 * π * 120) = 30 / π of the circle's circumference.

The angle in radians is given by 2π * (30 / π) = 60 radians.

Using the polar coordinates formula:

x = r * cos(θ)

y = r * sin(θ)

Plugging in the values:

x = 120 * cos(60) ≈ 60.00

y = 120 * sin(60) ≈ 103.92

So, if you had started at (0,120) and ran for 40 minutes, your coordinates would be approximately (60.00, 103.92).

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URGENT!!! due in 20 minutes GRAPH TRANSLATIONS 2 questions. Will mark brainliest!!!!

Answers

Answer:

Function f is translated to the right 2 units, and then up 1 unit to obtain function g.

To see this, note that g(x) = (x+1)³ - 2 = (x-(-1))³ - 2. Comparing this to f(x) = (x-2)³, we see that replacing x with x+3 in f(x) gives g(x) = (x+3-2)³ = (x+1)³, so this transformation moves the graph of f(x) three units to the left. Then, adding the constant -2 to f(x) translates the graph down 2 units. Finally, adding the constant 2 to the result of the previous step translates the graph up 2 units, so the graph of g(x) is obtained by first translating the graph of f(x) to the right 2 units, and then translating it up 1 unit. Therefore, the correct answers are:

Function f is translated to the right 2 units.

Function f is translated up 1 unit.

Function f is translated to the right 2 units, and then up 1 unit to obtain function g.

To see this, note that g(x) = √x - 2 + 1 = f(x-2) + 1. This means that the graph of g(x) is obtained by translating the graph of f(x) to the right 2 units, and then translating it up 1 unit. Therefore, the correct answers are:

Function f is translated to the right 2 units.

Function f is translated up 1 unit.

Step-by-step explanation:

At a particular school with 200 male students, 90 students play football or basketball. Of those 90 students, 58
play football and 40 play basketball. Find the probability that a randomly selected male student plays
basketball and football.

Answers

1/25 is the probability that a randomly selected male student plays both basketball and football

Let A be the  Male students who play football

B be Male students who play basketball

We are looking for the probability of P(A ∩ B), which represents the probability that a male student plays both basketball and football.

Using the formula for the probability of the intersection of two events:

P(A ∩ B) = P(A) + P(B) - P(A ∪ B)

First, we need to find the probability of P(A ∪ B), which represents the probability that a male student plays either basketball or football.

Since we know the total number of male students who play either sport (90), we can calculate it as follows:

P(A ∪ B) = Total number of male students who play either basketball or football / Total number of male students

P(A ∪ B) = 90 / 200

P(A ∪ B) = 9/20

Next, we can calculate the probability of P(A) and P(B) individually:

P(A) = Number of male students who play football / Total number of male students

P(A) = 58 / 200

P(A) = 29/100

P(B) = Number of male students who play basketball / Total number of male students

P(B) = 40 / 200

P(B) = 1/5

Now, we can substitute the values into the formula to find P(A ∩ B):

P(A ∩ B) = P(A) + P(B) - P(A ∪ B)

P(A ∩ B) = 29/100 + 1/5 - 9/20

P(A ∩ B) = 29/100 + 20/100 - 45/100

P(A ∩ B) = 4/100

P(A ∩ B) = 1/25

Therefore, the probability that a randomly selected male student plays both basketball and football is 1/25.

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I need a help with this hw

Answers

The values of the trigonometric ratios are: a) - 7/5, b) -75 c ) -1/5  d ) -25/12

 

What is trigonometric ratio?

Trigonometric ratios are measurements of the lengths of two sides of a triangle. There are three basic trigonometric ratios: sine, cosine, and tangent.  Sine ratios are the ratios of the length of the side opposite the angle they represent over the hypotenuse

the give parameters are:

tanα = -4/3 where π/2 <α<π and sinβ = √3/2, 0<β<π/2

a)  sin(α+β)

Using the trig ratios tan = opp/adj

but from pyth. rule, 4² + 3² = h²

16+9 = h²

h = √25 = 5

Now from trig Sin(α+β)

4/5 + 3/5

=- 7/5

b) cos(α+β)

cos = ad/hypo

4/5 + 3/5

= -7/5

c) Sin(α-β)

4/5 - 3/5

-1/5

d) tan(α-β)

= -4/3 - 3/4

= (-16 - 9)/ 12

-25/12

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