Find x.


Round to the nearest tenth:


12 cm


22 cm


42°


x = [? ]°


Law of Sines: sin A


sin B


sin C


а


vt6


b


Enter

The equation in slope-intercept form for the line passing through each pair of points, (-4, 4) and (-5, -3) is expressed as: y = 7x + 32

Given the points, (-4, 4) and (-5, -3), first find the slope of the line.

Slope (m) = change in y / change in x = -3 - 4 / -5 -(-4)

m = -7/-1

m = 7

Substitute m = 7, a = -4, and b = 4 into y - b = m(x - a):

y - 4 = 7(x + 4)

Rewrite im slope-intercept form:

y - 4 = 7x + 28

y - 4 + 4 = 7x + 28 + 4

y = 7x + 32

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It will take approximately 60.9 days for 650 mg of chromium-51 to decay to 200 mg.

What is Equation ?

An equation is a mathematical statement that shows that two expressions are equal. It typically contains variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division.

The decay of a radioactive substance can be modeled by the following equation:

N(t) = N₀ * [tex](1/2)^{(t/T) }[/tex]

where:

N(t) is the amount of the substance remaining after time t

N₀ is the initial amount of the substance

T is the half-life of the substance

We can use this equation to find how long it will take for 650 mg of chromium-51 to decay to 200 mg.

Let's first find the decay constant (λ) for chromium-51:

λ = ㏒(2) ÷ T = ㏒(2) ÷ 28 = 0.0248 (rounded to 4 decimal places)

Now we can use the equation:

N(t) = N₀ * [tex]e^{(-λ*t)}[/tex]

We know that N₀ = 650 mg and N(t) = 200 mg, so we can solve for t:

200 = 650 * [tex]e^{(-0.0248*t)}[/tex]

Dividing both sides by 650:

0.3077 =   [tex]e^{(-0.0248*t)}[/tex]

Taking the natural logarithm of both sides:

㏒(0.3077) = -0.0248*t

Solving for t:

t = ㏒(0.3077) : (-0.0248) ≈ 60.9 days

Therefore, it will take approximately 60.9 days for 650 mg of chromium-51 to decay to 200 mg.

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The function that describes how many lanterns Tisha can buy is F(x) = 18x + 64, with a domain of {0, 1, 2, 3, 4} and a range of {64, 82, 100, 118, 136}.

Function to describe how many lanterns Tisha can buy: F(x) = 18x + 64.

Domain: {0, 1, 2, 3, 4, 5} (since Tisha can buy up to 4 additional packages of lanterns, plus the original 64 lanterns).

Range: {64, 82, 100, 118, 136, 154} (each additional package of lanterns has 18 lanterns, so the total number of lanterns Tisha can buy is a multiple of 18 added to 64).

Option (a) F(x) - 18x + 64 has the correct formula but an incorrect domain. Tisha can buy 0 packages of lanterns, so the domain should include 0.

b) For option b, the function is F(x) = 18x + 64, where x represents the number of packages of lanterns Tisha buys. The reasonable domain for this function is {0, 1, 2, 3, 4, 5}, since Tisha can buy up to 4 packages and may choose not to buy any, resulting in x = 0. The range for this function is {64, 82, 100, 118, 136, 154}, which represents the total number of lanterns Tisha can have after buying x packages of 18 lanterns each, starting from the initial 64 lanterns she already has.

Option (c) F(x) - 64x + 18 has an incorrect formula. Tisha starts with 64 lanterns, so the constant term should be 64, not 18.

Option (d) F(x) = 64x + 18 has the correct formula, but the domain is incorrect. Tisha can only buy up to 4 packages, so the domain should be {0, 1, 2, 3, 4}, not just 5.

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Answer:

Her dad is 36 years old and brother is 12

Step-by-step explanation:

Since Alesha's brother is one year older you need to add 11+1 to get her brothers age, which is 12.
To get Alesha's dad's age you need to multiply 12x3, which is 36.

So, Alesha's dad is 36 and her brother is 12

When rounded to the nearest hundredth, the result of the expression tan 33° × cos 42° × sin 70° is approximately 0.4511 .

To evaluate the given expression using the terms tan 33°, cos 42°, and sin 70°, you can use a scientific calculator or an online tool like the ALEKS calculator.

After evaluating each term, you would multiply the values together and round the result to the nearest hundredth. Here's the breakdown:

tan 33° ≈ 0.6494
cos 42° ≈ 0.7431
sin 70° ≈ 0.9397

Now multiply the values:

0.6494 × 0.7431 × 0.9397 ≈ 0.4511

So, the result of the expression tan 33° × cos 42° × sin 70° is approximately 0.4511 when rounded to the nearest hundredth.

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Answer:

Graph 2

Step-by-step explanation:

There is 1 from 1-5

There are 4 from 6-10

There are 5 from 11-15

There is 1 from 16-20

There are 4 from 21-25

Answer:

1 time, though your answer would be ongoing. If you the actual answer, it's 1.2

Step-by-step explanation:

Round to the nearest tenth.

Answer:

1.2

Step-by-step explanation:

Five can go into six 1.2 times because (1.2)(5)=6. Of course, if you want to know how many times five can go into 6 as a WHOLE, then the answer would obviously be 1.

Hope this helps a bit :)

The x-intercept of the function  f(x) = x² - 16x + 64 is x = 8.

The x-intercept of the graph can be found as follows:

f(x) = x² - 16x + 64

The x-intercept is the point at which the graph of an equation crosses the x-axis. In other words, the x-intercept is where a line crosses the x-axis on a graph.

The x-intercept is the value of x when y = 0.

Therefore,

x² - 16x + 64 = 0

Let's factorise

x² - 8x - 8x + 64 = 0

x(x - 8) -8(x - 8) = 0

Therefore,

(x - 8)(x - 8) = 0

Therefore,

x = 8

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We can use the Pythagorean theorem to relate the distances between the ladder, wall, and ground. Let's call the distance from the foot of the ladder to the wall "x", and the distance from the top of the ladder to the ground "y". Then, we know that:

x^2 + y^2 = 10^2

We can differentiate this equation with respect to time to get:

2x(dx/dt) + 2y(dy/dt) = 0

We're interested in finding dy/dt, the rate at which the top of the ladder is sliding down the wall. We know that dx/dt = 0.5 ft/s, so we can plug in these values and solve for dy/dt:

2x(dx/dt) + 2y(dy/dt) = 0
2(8)(0.5) + 2y(dy/dt) = 0 (since x = 8 based on the Pythagorean theorem)
dy/dt = -4 ft/s

So the top of the ladder is sliding down the wall at a rate of 4 ft/s.
When the 10-foot ladder is leaning against a vertical wall, it forms a right-angled triangle with the wall and the ground. As Jack pulls the foot of the ladder away from the wall at a rate of 0.5 ft/s, the top of the ladder slides down the wall. To find the rate at which the top of the ladder slides down, we can use the Pythagorean theorem:

a^2 + b^2 = c^2

where a is the distance from the foot of the ladder to the wall, b is the height of the ladder's top from the ground, and c is the length of the ladder (10 feet).

Differentiating both sides with respect to time (t), we get:

2a(da/dt) + 2b(db/dt) = 0

We know that da/dt = 0.5 ft/s. We need to find db/dt, which is the rate at which the top of the ladder slides down the wall. To do this, we need to find the values of a and b at a given moment. Since the problem doesn't provide this information, it's not possible to determine the exact value of db/dt. However, if you have the values of a and b, you can plug them into the equation and solve for db/dt.

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The most common distance in miles would be = 1,200 miles.

To determine the distance that is most travelled the following is considered;

The total number of road trips = 7

On day 3 the distance travelled = 600 and 1,200 miles

On day 4 the distance travelled = 1,000,1,100 and 1,200 miles

On day 5 the distance travelled = 800 miles.

On day 6 the distance travelled = 1,300 miles

Therefore the most travelled distance = 1,200 miles.

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The plane's new velocity is 421.4 mph with a direction of 63.43 degrees relative to the air.

To solve this problem, we need to use vector addition. Let's first draw a diagram to represent the situation.

First, we need to break down the velocity of the plane and the velocity of the wind into their horizontal and vertical components.

The velocity of the plane can be broken down into a horizontal component of 500*cos(135) mph and a vertical component of 500*sin(135) mph.

The velocity of the wind can be broken down into a horizontal component of 60*cos(60) mph and a vertical component of 60*sin(60) mph.

Now, we can add these components together to get the resultant velocity.

The horizontal component of the resultant velocity is 500*cos(135) + 60*cos(60) = -189.28 mph. The negative sign indicates that the velocity is in the opposite direction of the plane's original direction.

The vertical component of the resultant velocity is 500*sin(135) + 60*sin(60) = 374.28 mph.

Using the Pythagorean theorem, we can find the magnitude of the resultant velocity:

|v| = sqrt((-189.28)^2 + (374.28)^2) = 421.4 mph.

Finally, we can find the direction of the resultant velocity using the inverse tangent function:

θ = tan^-1(374.28/-189.28) = -63.43 degrees.

So the plane's new velocity is 421.4 mph with a direction of 63.43 degrees relative to the air.

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Answer: 7

Step-by-step explanation:

Answer:

y=|x-2|-2

Step-by-step explanation:

Go onto desmos and you can ask it to graph an equation to test your answers.

The net worth of the Worthington family is $28,900, which is greater than the requirement of $100,000 for the loan. Therefore, they meet the net worth requirement for the loan.

To calculate the net worth of the Worthington family, we need to add up all their assets and subtract their liabilities (debts). Let's start by listing them:

Assets:

- Savings account: $18,800

- Vehicles: $64,600

- Antique necklace: $6,200

- College fund: $24,700

Total assets: $114,300

Liabilities:

- Mr. Worthington's student loans: $85,400

Total liabilities: $85,400

To calculate the net worth, we subtract the liabilities from the assets:

Net worth = Total assets - Total liabilities

Net worth = $114,300 - $85,400

Net worth = $28,900

The net worth of the Worthington family is $28,900, which is greater than the requirement of $100,000 for the loan. Therefore, they meet the net worth requirement for the loan.

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Answer:

Step-by-step explanation:

Congruent triangles are triangles that are the same shape and same size.

So if they look the same and have the same dimension like area and perimeter then they are congruent.

The total cost for team C would be $760 + $600 = $1360.

We can start by setting up a system of equations based on the given information. Let x be the cost of one soccer ball and y be the cost of one basketball. Then we have:

3x + 7y = 1240 (equation 1)

5x + 10y = 1900 (equation 2)

We can solve this system of equations by using either substitution or elimination method. Let's use elimination method here:

Multiplying equation 1 by 2 and subtracting it from equation 2, we get:

5x + 10y - (6x + 14y) = 1900 - 2(1240)

-x - 4y = 420

Now we can use either equation 1 or equation 2 to solve for x or y. Let's use equation 1:

3x + 7y = 1240

3x + 3y = 840 (multiplying both sides by -1 and adding to the previous equation)

4y = 400

y = 100

So one basketball costs $100. Now we can substitute this value back into either equation 1 or equation 2 to solve for x. Let's use equation 1:

3x + 7y = 1240

3x + 7(100) = 1240

3x = 570

x = 190

So one soccer ball costs $190.

Now we can use these values to find the cost for team C:

4 soccer balls cost 4 x $190 = $760

6 basketballs cost 6 x $100 = $600

So the total cost for team C would be $760 + $600 = $1360.

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The completed two column table in the question showing that the measure of the angle m∠GKB = 120° can be presented as follows;

Statement [tex]{}[/tex]                                                Reason

[tex]\overline{AB}[/tex] || [tex]\overline{EF}[/tex]         [tex]{}[/tex]                                          Given

m∠ELJ = 120°

m∠ELJ + m∠ELK = 180°     [tex]{}[/tex]                        Linear pair Postulate

m∠BKL + m∠GKB = 180°   [tex]{}[/tex]                        Linear pair Postulate

m∠ELJ + m∠ELK = mBKL + m∠GKB  [tex]{}[/tex]      Transitive property

∠ELK ≅ ∠BKL                         [tex]{}[/tex]                   1. Alternate Interior Angles

m∠ELK = m∠BKL [tex]{}[/tex]                                      2. Definition of congruent angles

m∠ELJ + m∠ELK = m∠ELK + m∠GKB[tex]{}[/tex]      Substitution property

m∠ELJ = m∠GKB[tex]{}[/tex]                                      Subtraction property

m∠GKB = m∠ELJ [tex]{}[/tex]                                     Symmetric property

m∠GKB = 120° [tex]{}[/tex]                                          Substitution

An angle is the figure formed at the point of intersection of two rays that have the same starting point. The parts of an angle includes; The vertex, which is the point of intersection of the rays, and the sides or arms of the angle, which are the two rays forming the angle.

The details of the the statements that completes the above table used to prove the measure of the angle m∠GKB = 120° are as follows;

Alternate interior angles theorem

The alternate interior angles theorem states that the alternate interior angle formed by the two parallel lines and their shared transversal are congruent.

Definition of congruent angles

Congruent angles are angles that have the same measure.

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The value of c in equation y= 0. 884 sin(0. 245x - 1. 093) + 0. 400 is c. 0. 245.

The given equation represents a sine regression model, where y is the dependent variable and x is the independent variable. The equation includes a sine function with a frequency of 0.245 and an amplitude of 0.884. The constant term, 0.400, represents the vertical shift or the y-intercept of the graph. The phase shift, 1.093, determines the horizontal shift of the graph.

To find the value of c, we need to look at the coefficient of x in the sine function. In this case, the coefficient of x is 0.245, which represents the frequency or the number of complete cycles that occur in a given interval. Therefore, the answer is (c) 0.245.

It's important to note that the coefficient of x in a sine regression model represents the frequency and not the phase shift or the horizontal shift. The phase shift is determined by the constant term in the sine function.

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The margin error for the given poll having 95% confidence level with sample size of 410 is equal to 3.15%.

Sample size n = 410

Confidence level = 95%

Margin of error for this poll, use the formula,

ME = Z× (√(p₁(1-p₁) / n))

where Z is the z-score corresponding to the desired level of confidence.

p₁ is the sample proportion = 0.12

Using attached z-score table,

For a 95% confidence level, the corresponding z-score is 1.96.

Substituting the given values, we get,

ME = 1.96 × (√(0.12× (1-0.12) / 410))

Simplifying the expression inside the parentheses, we get,

⇒ME = 1.96 ×  0.0160

⇒ME = 0.0315

Margin of error for this poll at the 95% confidence level is approximately 0.0315.

Therefore,  95% confidence level represents that the true proportion of people who like dogs is within 3.15% of the observed proportion of 12%.

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If both confidence intervals were correctly calculated (6. 53, 7. 95) is the 90 percent level. Therefore, the correct option is A.

To determine which confidence interval corresponds to the 90 percent level and the 98 percent level, we can look at the width of the intervals. The interval with the larger width is the one with a higher confidence level because it accounts for more possible variation in the data.

The first interval (6.53, 7.95) has a width of 7.95 - 6.53 = 1.42.

The second interval (6.20, 8.28) has a width of 8.28 - 6.20 = 2.08.

Since the second interval has a larger width, it corresponds to the higher confidence level of 98 percent. Therefore, the first interval corresponds to the 90 percent confidence level. The correct answer is option A. (6.53, 7.95) is the 90 percent level.

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Doug is filing singly, and his net taxable income is $80,575. The tax amount for this income range is $16,539. Every week, $304 is withheld from his earnings for income tax. Doug can expect he will owe an additional $731. So option d is the correct answer.

Since the result is a positive number, Doug will owe an additional $731 when his taxes are due. Therefore, the correct answer is d. Doug will owe an additional $731.

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From the given data set, the mean absolute deviation is 10.72

To determine the mean absolute deviation of the data set, we need to find the mean first.

mean = (0 + 1 + 3 + 10 + 12 + 12 + 15 + 17 + 18 + 22 + 66) / 11

mean = 16

Now, let's calculate the mean absolute deviation

|0 - 16| = 16

|1 - 16| = 15

|3 - 16| = 13

|10 - 16| = 6

|12 - 16| = 4

|12 - 16| = 4

|15 - 16| = 1

|17 - 16| = 1

|18 - 16| = 2

|22 - 16| = 6

|66 - 16| = 50

MAD = (16 + 15 + 13 + 6 + 4 + 4 + 1 + 1 + 2 + 6 + 50) / 11

MAD = 10.72

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The terminal point is (0.866025, 0.5) and the tangent of θ is 0.55735 for θ = π/6 radians.

When the angle is given as 0 radians (0 = π/6 radians), the terminal point of the angle is on the positive x-axis.

The terminal point represents the point in the coordinate system where a given angle and distance (or magnitude) from the origin are located.

For any angle a, the coordinates of the terminal point are given by:

x = cos(a)

y = sin(a).

In this case, the angle is a = π/6

Then the coordinates of the terminal point are:

x = cos(π/6) = 0.5

  = 0.866025

y = sin(π/6)

  = 0.5

So the terminal point is (0.866025, 0.5)

The quotient of the y-component and the x-component is the tangent of that angle:

tan(π/6) = 0.5/ 0.866025

            = 0.57735

Therefore, the terminal is (0.866025, 0.5) and the tangent is 0.55735.

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The question attached here seems to be incomplete, the complete question is:

If θ= π/6 radians then Identify the terminal point and tan θ.

The transformations that have occurred from the original parent function ()=√య to the given function ()=2√x+4 are: vertical stretch by a factor of 2 and a vertical shift upward by 4 units.

The transformations that have occurred from the original parent function ()=√x to the given function ()=2√x+4 are: vertical stretch by a factor of 2 and a vertical shift upward by 4 units. The square root function (√x) has been multiplied by 2, resulting in a steeper curve, and then shifted vertically upwards by 4 units.

From the original cupcake company function g(x), the new function h(x)=2√x+2య+4 involves additional transformations. It starts with the transformations from part (a), which are a vertical stretch by a factor of 2 and a vertical shift upward by 4 units.

Annndditionally, the function is further transformed by a horizontal compression by a factor of 1/2, achieved by dividing the x-values by 2. Finally, a vertical shift upward by 2 units is applied. These transformations modify the shape, position, and scale of the original function to represent the changes in Mrs. Galicia's cupcake company's earnings.

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For the expressions  3x+4 –2x, and 5x+2x+x the simplified expression after combining like terms is x+4 and 8x.

The given expressions are  3x+4 –2x, and 5x+2x+x

We have to simplify these expressions by combining the like terms

For the expression 3x+4 –2x

We have to combine like terms

x+4

Now for expression  5x+2x+x

Combine the like terms to get

8x

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Mollie and Ted can use the Side-Side-Side (SSS) postulate to justify why their triangles must be congruent.

According to the given information, the two triangles share three corresponding sides of equal length: ML = TD, OL = ED, and L = D.

The SSS postulate states that if three corresponding sides of two triangles are congruent, then the triangles are congruent. Therefore, because Mollie's triangle and Ted's triangle share three corresponding sides of equal length, they are congruent by the SSS postulate.

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The function f(x, y, z) that has the constant gradient vector (3, 9, 4) is: f(x, y, z) = (3/2)x^2 + (9/2)y^2 + (2z - y - 2x)^2 + C where C is a constant of integration.

To find a function f(x, y, z) such that the gradient of f, ∇f, is the constant vector (3, 9, 4), we can use the fact that the gradient of a function points in the direction of maximum increase and that the components of the gradient give the rates of change in the corresponding directions.

Let's assume that f(x, y, z) has the form:

f(x, y, z) = ax^2 + by^2 + cz^2 + dxy + exz + fyz + gx + hy + iz + C

where a, b, c, d, e, f, g, h, i, and C are constants that we need to determine.

The gradient of f is:

∇f = (2ax + dy + ez + g, 2by + dx + fz + h, 2cz + ex + fy + i)

If ∇f is equal to the constant vector (3, 9, 4), then we can set up a system of equations:

2ax + dy + ez + g = 3

2by + dx + fz + h = 9

2cz + ex + fy + i = 4

We need to solve this system of equations for a, b, c, d, e, f, g, h, i, and C.

To make the solution simpler, we can set some of the constants to zero. Let's set d = e = f = g = h = i = 0. Then the system becomes:

2ax + ez = 3

2by + fz = 9

2cz + fy = 4

Now we can solve for a, b, and c:

a = 3/2x - 1/2z

b = 9/2y - 1/2z

c = 2z - y - 2x

Substituting these values back into the original equation for f, we get:

f(x, y, z) = (3/2)x^2 + (9/2)y^2 + (2z - y - 2x)^2 + C

So the function f(x, y, z) that has the constant gradient vector (3, 9, 4) is:

f(x, y, z) = (3/2)x^2 + (9/2)y^2 + (2z - y - 2x)^2 + C

where C is a constant of integration.

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The perimeter of the fence for the pasture is 10W + 6.

To find the perimeter of the fence, we need to add up the lengths of all four sides. Let's start by using the given information to find the length and width of the pasture.

Let's say the width of the pasture is W. Then, according to the problem, the length of the pasture is 3 more than 4 times the width, which can be expressed as:

Length = 4W + 3

Now that we have the length and width, we can find the perimeter by adding up all four sides:

Perimeter = 2(Length + Width)

Perimeter = 2(4W + 3 + W)

Perimeter = 2(5W + 3)

Perimeter = 10W + 6

Therefore, the perimeter of the fence is 10W + 6.

Note: The question is incomplete. The complete question probably is: You are building a fence for your pasture. The length is three more than four times the width. What is the perimeter of the fence.

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The expression that is equivalent to −0.75(60–32n)–n is A. −45+23n.

A mathematical or algebraic expression is the combination of variables with numbers, constants, and values using algebraic operands, including addition, multiplication, subtraction, and division.

Mathematical expressions do not bear the equal symbol (+) unlike equations.

−0.75(60–32n)–n

Expanding:

-45 + 24n - n

Simplifying:

−45 + 23n

Thus, the equivalent expression is Option A.

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La longitude del Puente entre loss punts A y B es de aproximadamente 97.9 metros.

Para calcular la longitud del puente entre los puntos A y B, podemos utilizar el teorema del seno en el triángulo OAB.

Primero,trazamos una línea vertical desde O hasta el segmento AB, creando un triángulo rectángulo OAD. La distancia entre A y O, medida en línea recta, es de 120 m.

Luego, utilizando el ángulo OAB, que mide 48 grados, y el ángulo ABO, que mide 32 minutos (o 32/60 grados), podemos encontrar el tercer ángulo del triángulo OAB aplicando la propiedad de que la suma de los ángulos de un triángulo es 180 grados.

El tercer ángulo del triángulo OAB será: 180 - 48 - (32/60) ≈ 101.467 grados.

Ahora, aplicamos el teorema del seno:

sen(OAB) / AO = sen(ABO) / BO

Despejando BO

BO = (AO * sen(ABO)) / sen(OAB)

Sustituyendo los valores conocidos:

BO = (120 * sen(48)) / sen(101.467) ≈ 120 * 0.7431 / 0.9933 ≈ 89.568 m

Por lo tanto, la longitud del puente que se quiere construir entre los puntos A y B es aproximadamente 89.568 metros.

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The average speed that your brother was traveling is approximately 45.63 miles per hour

The average speed is the total distance traveled divided by the total time taken. So we have:

Average speed = total distance ÷ total time

We are given the total distance as 115 miles and the total time as 2.52 hours. Therefore, the average speed is:

Average speed = 115 miles ÷ 2.52 hours

Average speed = 45.63 miles per hour

So, the average speed that your brother was traveling is approximately 45.63 miles per hour.

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