in navigational terms, a minute is one sixtieth of a degree, and a second is one sixtieth of a minute. to the nearest foot, what is the length of a one-second arc on the equator?the radius of the earth is 3960 miles.

Answers

Answer 1

At the equator, an arc-second of longitude approximately equals an arc-second of latitude, which is 1/60th of a nautical mile (or 101.27 feet or 30.87 meters)

1° = 11(5280) ft

1° = 58080 ft

1' = 58080 ft/ 60  

1" = 58080 ft / 3600

At the equator 360° = 3960 miles

1° = 11 miles

Knowing that one mile is 5280 feet we can determine the length of one minute and one second.

An equator is an imaginary line around the middle of a planet or other celestial body. It is halfway between the north pole and the south pole, at 0 degrees latitude. An equator divides the planet into a northern hemisphere and a southern hemisphere. Earth is widest at its Equator.

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Answer 2

At the equator, an arc-second of longitude approximately equals an arc-second of latitude, which is 1/60th of a nautical mile (or 101.27 feet or 30.87 meters)

1° = 11(5280) ft

1° = 58080 ft

1' = 58080 ft/ 60  

1" = 58080 ft / 3600

At the equator 360° = 3960 miles

1° = 11 miles

Knowing that one mile is 5280 feet we can determine the length of one minute and one second.

An equator is an imaginary line around the middle of a planet or other celestial body. It is halfway between the north pole and the south pole, at 0 degrees latitude. An equator divides the planet into a northern hemisphere and a southern hemisphere. Earth is the widest at its Equator.

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Related Questions

what happens to the capture rate if this condition is violated? the confidence interval will capture the population parameter less often than the specified confidence level. not enough information is provided to determine what happens to the capture rate if the 10% condition is violated. the confidence interval will capture the population parameter 10% as often as the specified confidence level. the confidence interval will capture the population parameter more often than the specified confidence level. the confidence interval will capture the population parameter at the same rate as the specified confidence level.

Answers

the capture rate will be lower than what is indicated in the confidence level.

A C% confidence interval gives an interval of plausible values for a parameter. The interval is calculated from the data and has the form, point estimate ± margin of error.

When the random and large counts conditions are met, a C% confidence interval for the population proportion p is

Point estimate ±margin of error

Ƹ± √Ƹ(1 − Ƹ)/

Where z is the critical value for the standard normal curve with C% of its area between –z and +z.

Your interval will look like: ______ < p <________

Confidence Intervals in a 4 Step Process:

Statistics Problems Demand Consistency

1. State: What parameter do you want to

estimate, and at what confidence level?

2. Plan: Identify the appropriate inference

method: check conditions.

3. Do: If the conditions are met, perform

calculations.

4. Conclude: Interpret your interval in the

context of the problem.

When constructing a confidence interval for a population proportion, it is checked that sample size is less than 10% of population size.

This condition is important due to the the fact that when sample size is less than of population size, observations are closer to independent.

If this requirement is not met, it is not possible to calculate standard deviation of distribution.

If this requirement is not met, it is not possible to calculate standard deviation of distribution correctly.

If standard deviation is not correct, confidence level will be inaccurate. There are less chances to obtain population parameter in confidence interval.

Therefore, the capture rate will be lower than what is indicated in the confidence level.

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The capture rate will be lower than what is indicated in the confidence level.

An interval of conceivable values for a parameter is provided by a C% confidence interval. The interval is formed as a point estimate with a margin of error and is calculated from the data.

A C% confidence interval for the population proportion p when the random and large counts requirements are satisfied is 

Point estimate margin of error

Ƹ± √Ƹ(1 − Ƹ)

Where z is the critical value for the standard normal curve with C% of its area between –z and +z.

Your interval will look like: ______ < p <________

Confidence Intervals in a 4-Step Process:

1. Clarify what parameter you wish to estimate and at what level of confidence.

2. Make a plan and decide which inference technique is best. Check the circumstances.

3. If the criteria are satisfied, run the calculations.

4. Summarize: Consider your interval in light of the issue.

It is ensured that the sample size is less than 10% of the population size when creating a confidence interval for a population proportion. This requirement is crucial because observations are more likely to be independent when the sample size is smaller than the population size. Calculating the distribution's standard deviation is impossible if this condition is not satisfied. The standard deviation of the distribution cannot be appropriately calculated if this condition is not satisfied. The confidence level will be incorrect if the standard deviation is incorrect. Population parameters are less likely to be found in a confidence interval. As a result, the capture rate will be lower than what the confidence level predicts.

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what is 57.8 divided by 3.4?

Answers

Answer: 17

Step-by-step explanation: 3.4 can go into 57.8 seventeen times. 3.4 x 17 is 57.8. Therefore, 57.8 divided by 3.4 is 17.

It is 17
Because 3,4 can go into 54.8 seventeen times

let a be a 3x2 matrix. suppose we know that u=[2 -3] and v=[4 2] satisfy the equations au = a and av =b. find a solution to x .

Answers

The solution to x, when the equations au = a and av =b are satisfied, will be x = [0 0].

Given that u = [2 -3] and v = [4 2] satisfy the equations au = a and av = b, we need to find a solution to the equation ax = b.

Let's express the matrix an as a column vector of its columns: a = [a1 a2]. Now, we have the following equations:

a*u = a

[a1 a2] * [2 -3] = [a1 a2]

This yields two equations:

2a1 - 3a2 = a1

2a1 - 3a2 = a2

Simplifying these equations, we get:

a1 = 3a2 ...(1)

a2 = 2a1 ...(2)

Substituting equation (2) into equation (1), we have:

a1 = 3(2a1)

a1 = 6a1

Solving for a1, we find a1 = 0.

Substituting this value back into equation (2), we have:

a2 = 2(0)

a2 = 0

Therefore, a solution to x is x = [0 0].

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we toss a fair die three times. what is the probability that all tosses produce different outcomes?

Answers

The probability that all tosses produce different outcomes is 1.666

Probability;

Simply put, probability is the likelihood that something will occur. When we don't know how an event will turn out, we can discuss the likelihood or likelihood of several outcomes. Statistics is the study of events that follow a probability distribution.

Number of toss of dice = 3 times

Number of ways to throw one dice that shows different results = 6 × 5 × 4 × 3 = 360 ways

The total number of throw results = 6³ = 216

Now,

The probability that each throw will result in a different result;

Number of ways / Total number of throws = 360 / 216 = 1.666

The probability that each toss will result in a unique outcome is 1.666

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Given the diagram below, solve for x.

Answers

The solution for x on the diagram is given as follows:

x = 111.

How to obtain the solution for x?

The angle measures in this problem are given as follows:

x and (x - 42)º.

They are on the same side relative to the transversal line, and between the two parallel lines, hence they are classified as consecutive interior angles.

Consecutive interior angles are supplementary, as the sum of their measures is of 180º, hence the value of x is obtained as follows:

x + x - 42 = 180

2x = 222

x = 222/2

x = 111.

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A house has 12 rooms (10 bedroom and 2 living rooms). We want to paint 4 yellow, 5 red and 3 purple. We do not want the living rooms to be the same color. In how many ways this can be done?

Answers

Total number of ways to paint rooms is 19,740.

We can solve this problem using the combinatorics. First, we choose the color for the living rooms, which can be done in 3*2 = 6 ways (yellow, red, or purple). Then, we choose the colors for the remaining 10 rooms.

Case 1 : living room is yellow and red

Then remaining colors are 3 yellow, 4 red, 3 purple

number of ways to paint living room = 2

number of ways to pain bedroom = 10!/(3! 4! 3!)

So number of ways = 2 * 10!/(3! 4! 3!) = 8400

Case 2 : living room is yellow and purple

Then remaining colors are 3 yellow, 5 red, 2 purple

So number of ways = 2 * 10!/(3! 5! 2!) = 5040

Case 3 : living room is red and purple

Then remaining colors are 4 yellow, 4 red, 2 purple

So number of ways = 2 * 10!/(4! 4! 2!) = 6300

Total number of ways = 8400 + 5040 + 6300 = 19,740

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need help asap image attached

Answers

Answer: angle dce is the angle that is vertical

please if anyone could help me out with this question and a couple of others that would be amazing and i would be so grateful

Answers

Check the picture below.

[tex]\cfrac{x}{1225}=\cfrac{2035}{2950}\implies \cfrac{x}{1225}=\cfrac{407}{590}\implies x=\cfrac{(1225)(407)}{590}\implies x=\cfrac{99715}{118}~ft[/tex]

now, we know your strolling speed is 200 ft per minute or 200 ft per 60 seconds, so how long for that distance above?

[tex]\begin{array}{ccll} feet&seconds\\ \cline{1-2} 200&60\\[1em] \frac{99715}{118}&y \end{array}\implies \cfrac{200}{ ~ \frac{99715}{118}~ } =\cfrac{60}{y}\implies \cfrac{200}{1}\cdot \cfrac{118}{99715}=\cfrac{60}{y} \implies \cfrac{4720}{19943}=\cfrac{60}{y} \\\\\\ 4720y=(19943)(60)\implies y=\cfrac{(19943)(60)}{4720}\implies y\approx 254~seconds[/tex]

It takes 6 cubic inches of colored sand to fill a plastic cone. How many cubic inches will it take to fill a plastic cylinder with the same base and height as the cone?.

Answers

The plastic cylinder will take 18 cubic inches of sand to fill it.

Ratio of volume of a cylinder to the volume of a cone:  

Let 'r' and 'h' be the radius and height of the both cylinder and cone, then the ratio of the volume of the cylinder to the volume cone can be calculated as given below

=> Volume of cylinder: Volume of cone

=> πr²h : 1/3 πr²h  

=> 1: 1/3  

=> 3: 1

Ratio of volume of a cylinder to the volume of a cone = 3: 1  

which means the volume of the cone is one-third of the volume of the cylinder

   

Given that

It takes 6 cubic inches of colored sand to fill a plastic cone.  

The volume of the cone = 6 cubic inches

It is also given that cylinder has the same base and height as the cone

As we know the volume of the cone is one-third of the volume of the cylinder

Volume of cone = (1/3) × Volume of cylinder

=> Volume of cylinder = 3 × Volume of cone

Volume of the given cylinder = 3 × 6 cubic inches  

= 18 cubic inches

Therefore,

The plastic cylinder will take 18 cubic inches of sand to fill it.

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function rules and tables calculator r=2t

Answers

Answer:

1 and 1

5 and 10

7 and 14

Step-by-step explanation:

you just have to multiple 2 by the number in (T)

Consider the system modeled by the following difference equation. y(n) = 3y(n-1) + x(n − 2)
Assume the underlying system is casual with zero initial conditions. What is the transfer function?

Answers

Assuming the underlying system is casual with zero initial conditions, the transfer function is Y(z)/X(n) = 1/([tex]z^2[/tex] - 3z).

The differential equation is y(n) = 3y(n-1) + x(n − 2).

Since there are no initial conditions, the underlying system is known to be casual.

Considering the Transfer function.

Z transform properties are used

y(n-1) = [tex]z^{-1}[/tex]Y(z)

y(n) = Y(z)

x(n-2) = [tex]z^{-2}[/tex]X(n)

Now putting the value in the equation

Y(z) = 3[tex]z^{-1}[/tex]Y(z) + [tex]z^{-2}[/tex]X(n)

Multiply by [tex]z^2[/tex] on both side, we get

[tex]z^2[/tex]Y(z) = 3zY(z) + X(n)

Subtract Y(z) 0n both side, we get

[tex]z^2[/tex]Y(z) - 3zY(z) = X(n)

Y(z)([tex]z^2[/tex] - 3z) = X(n)

Divide by ([tex]z^2[/tex] - 3z) on both side, we get

Y(z) = X(n)/([tex]z^2[/tex] - 3z)

Divide by X(n) on both side, we get

Y(z)/X(n) = 1/([tex]z^2[/tex] - 3z)

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4) a patient who just underwent a scheduled surgery and is in pacu. what should the nurse run the pump if they want to infuse a 1000ml bag of lactated ringers over 9 hours? ____ ml/hr

Answers

The nurse should run the pump at 111.1 ml/hr.

To infuse a 1000ml bag of lactated ringers over 9 hours, the nurse must determine the hourly rate at which the fluid should be infused. This can be done by dividing the total volume of the fluid (1000 ml) by the number of hours it will take to infuse it (9 hours).

So, the hourly rate would be:

1000 ml ÷ 9 hours = 111.1 ml/hr.

Therefore, the nurse should run the pump at 111.1 ml/hr in order to infuse the 1000ml bag of lactated ringers over 9 hours.

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The last time Zach checked, the corn stalks in his back yard were 50 inches tall. Now they are 5.8% taller. How tall are the stalks now?

Answers

Answer:

52.9 inches.

Step-by-step explanation:

Let's call the current height of the corn stalks as "h". Then the increase in height will be 0.058 * 50 = 2.9 inches.

So, h = 50 + 2.9 = 52.9 inches.

PLEASE HELP ASAP SOLVE WITH EXPLANATION 3

Answers

Answer:

3.4 in²

Step-by-step explanation:

Information we must know:

The radius of the circle is 2 inches so the diameter would be 4!The diameter of the square is equal to one side of the squareArea of circle = πr²Area of square = l²

1) Find the area of the circle

π × 2² = 12.5663706144We won't round up or down until the last step to get a more accurate answer!

2) Find the area of the square around the circle

4² = 16

3) Subtract!

16 - 12.5663706144 = 3.43362938563.4 in²

Have a lovely day :)

Answer:

3.4 in²

Step-by-step explanation:

We can solve for the area of the blue portion of this figure by subtracting the area of the circle (the area that is NOT blue) from the area of the surrounding square.

First, we can solve for the area of the square using arithmetic.

In this problem, the side length is twice the radius ([tex]r[/tex]) of the circle (given as 2 in), since the circle is circumscribed inside the square, meaning that it touches the square at all 4 midpoints of its sides.

[tex]\textrm{side length} = 2r[/tex]

[tex]\textrm{side length} = 2(2 \, \textrm{in})[/tex]

[tex]\textrm{side length} = 4 \, \textrm{in}[/tex]

Now we can solve for the area of the square using the formula:

[tex]\textrm{Area}_\square = \textrm{side length}^2[/tex]

[tex]\textrm{Area}_\square = (4 \, \textrm{in})^2[/tex]

[tex]\textrm{Area}_\square = 16 \, \textrm{in}^2[/tex]

Next, we can solve for the area of the circle using the formula:

[tex]\textrm{Area}_\circ = \pi r^2[/tex]

Remember that the radius of the circle was given as 2 in.

[tex]\textrm{Area}_\circ = \pi (2 \, \textrm{in})^2[/tex]

[tex]\textrm{Area}_\circ = 4\pi \, \textrm{in}^2[/tex]

Finally, we can solve for the area of the blue portion of the figure by subtracting the area of the circle from the area of the square.

[tex]\textrm{Area}_{\textrm{blue}} = A_\square - A_\circ[/tex]

[tex]\textrm{Area}_{\textrm{blue}} = 16 \, \textrm{in}^2 - 4\pi \, \textrm{in}^2[/tex]

If we plug this into a calculator, we approximately get:

3.4 in²

Final exam question

Answers

A team's winning percentage is calculated as follows:

D. PCT = games won/total games played.

How to obtain a team's winning percentage?

A team's winning percentage is obtained applying a proportion, as the percentage is given by the division of the number of desired outcomes, that is, the number of games won, by the total number of outcomes, that is, the number of games played.

Hence the equation used to calculate the percentage is given as follows:

PCT = games won/total games played.

Meaning that the correct option is given by option D.

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A geometry student is flying a
kite with 120-ft of string and their
hand 4-ft from the ground. The
angle between the horizontal and the kite is 30°. Find the height of the kite from the ground. Round to the nearest tenth

Answers

The height of the kite from the ground is 54ft

How to find the height?

Information involves angles of elevation that can be solved using the trigonometric ratios of sine.

The question reads that a geometry student is flying a

kite with 120-ft of string and their

hand 4-ft from the ground

The height is found by  sin30 = h+4/120

Making h the subject of the relationship

h+4 = 120 * 0.5

h= 60-4

Therefore the height of the kite is 54ft

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What are the pros and cons of a histogram and a stem and leaf plot?

Answers

Histogram is a visual representation of data distribution and a stem and leaf plot provide individual values in a set.

What makes up a histogram and a stem and leaf plot?

Pros of a histogram:

It provides a visual representation of the distribution of data, making it easier to understand patterns and trends in the data.It can show the overall shape of the data, including the skewness and the presence of outliers.It can be useful for comparing multiple datasets by plotting them on the same graph.

Cons of a histogram:

It can be less precise in representing individual values within a data set compared to other forms of data representation.It can be misleading if the bin width is not chosen properly, as it can hide or emphasize certain features of the data.

Pros of a stem-and-leaf plot:

It provides a more detailed representation of individual values within a data set.It is useful for quickly checking the range and distribution of the data.It is relatively simple to construct and interpret.

Cons of a stem-and-leaf plot:

It can become cluttered for large data sets, making it difficult to see the overall pattern and distribution.It is less visually appealing compared to other forms of data representation such as histograms and box plots.

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A group of students was surveyed in a middle school class. They were asked how many hours they work on math homework each week. The results from the survey were recorded.


Number of Hours Total Number of Students
0 1
1 3
2 2
3 10
4 9
5 7
6 3


Determine the probability that a student studied for exactly 4 hours. Round to the nearest hundredth.
0.74
0.35
0.26
0.11

Answers

Answer:

0.26

Step-by-step explanation:

There are 1 + 3 + 2 + 10 + 9 + 7 + 3 = 35 total students. Additionally, there are 9 students who work exactly 4 hours. Thus, the probability is 9/35, or 0.26 rounded to the nearest hundredth.

Answer:

26

Step-by-step explanation:

1+3+2+10+9+7+3= 35

35 divided by 4

Additional Challenge: Khalil is working with a geometric sequence. He knows that t(0) = 3 and that the sum of the first three terms ( t(0), t(1) , and t(2) ) add up to 63 Help him figure out the sequence.​

Answers

The solution is, the sequence is, {3, 31, 49, ..............}

What is Arithmetic progression?

An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.

For instance, the sequence 5, 7, 9, 11, 13, 15.. . is an arithmetic progression with a common difference of 2.

here, we have,

t(0) = 3

and that the sum of the first three terms ( t(0), t(1) , and t(2) ) is 63

let, the 1st term = a

common difference = d

so, we have,

a = 3

and, a+ a+d + a+ 2d = 63

or, 9+ 3d = 63

or, 3d = 54

or, d = 18

Hence, The solution is, the sequence is, {3, 31, 49, ..............}

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is it possible for one of φ∧(ψ ∨θ) and (φ∧ψ)∨(φ∧θ) to be true and the other false?

Answers

By examining the truth table, we can determine the two expressions are equivalent and it is possible for one of them to be true and the other false.

Given two Boolean expressions, it is possible for one of them to be true and the other false if they are not equivalent. For example, consider the two expressions: φ ∧ (ψ ∨ θ) and (φ ∧ ψ) ∨ (φ ∧ θ).

It is possible to construct a truth table for these two expressions, which shows all possible combinations of truth values for φ, ψ, and θ, along with the corresponding truth values for the two expressions.

Boolean logic is a branch of mathematical logic that deals with binary operations (i.e., true or false values) and is often used in computer science. One of the basic operations in Boolean logic is the logical conjunction (denoted by ∧), which represents the and operator. For example, if φ and ψ are two propositions, then φ ∧ ψ is true if and only if both φ and ψ are true.

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the following picture, a hydraulic lift balances two masses. solve for m2 if m1 = 70 kg , and the diameters are d1 = 1.0 m , and d2 = 3.0 m .\

Answers

The equation for a hydraulic lift can be used to calculate the force on each mass.  F1 = F2

m2 = 210 kg

Using the equation for a hydraulic lift, the force on each mass can be calculated.

F1 = F2

(m1 x g) x (d1/d2) = (m2 x g)

(70 kg x 9.8 m/s2) x (1.0 m/3.0 m) = (m2 x 9.8 m/s2)

210 kg = m2 x 9.8 m/s2

m2 = 210 kg/9.8 m/s2

m2 = 21.43 kg

m2 = 210 kg (rounded up)

The equation for a hydraulic lift can be used to calculate the force on each mass.  F1 = F2

(m1 x g) x (d1/d2) = (m2 x g)

Plug in the given values:

(70 kg x 9.8 m/s2) x (1.0 m/3.0 m) = (m2 x 9.8 m/s2)

Solve for m2:

m2 = 210 kg/9.8 m/s2

m2 = 21.43 kg

m2 = 210 kg (rounded up)

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pencils are sold in boxes of 10
erasers are sold in boxes of 14
a teacher wants to buy the same amount of pencils and erasers. How many of each boxes should she buy

Answers

Answer:

7 boxes of pencils and 5 boxes rubbers.

Step-by-step explanation:

Since LCM (10,14) = 70, that means that the minimum number of each you must buy is 70. So it's 7 boxes of pencils ( 10 each ) and 5 boxes of rubbers ( 14 each ).

the___ is measure of a country's total economic output.

Answers

Answer:gdp

Step-by-step explanation:gross domestic product

Answer:

GDP => Gross Domestic Product

Step-by-step explanation:

GDP measures the monetary value of final goods and services produced in a country in a given period of time

if you have flipped t tails, you need to flip t 1 consecutive heads to win the game. what is the probability to win the game?

Answers

The probability of flipping 1 head in a fair coin flip is 0.5. The probability of flipping t heads in a row is [tex]0.5^{t}[/tex]. To win the game, you need to flip t heads after flipping t tails, so the probability of winning the game is ([tex]0.5^{t}[/tex])².

The probability of flipping heads in a fair coin flip is 0.5, meaning that the chance of getting heads on any given flip is 50%. If you have flipped t tails and now need to flip t heads in a row to win the game, then the probability of flipping t heads in a row is [tex]0.5^{t}[/tex].

To win the game, you need to flip t heads after t tails, so the overall probability of winning the game is ([tex]0.5^{t}[/tex], which is the probability of flipping t heads multiplied by the probability of flipping t tails. In other words, the chance of winning the game is the product of the individual probabilities of each coin flip outcome. The probability of winning the game decreases as the number of heads you need to flip in a row increases.

To simplify the answer, let's assume that you need to flip t=3 heads in a row to win the game after flipping t=3 tails

The probability of flipping one head is 0.5, so the probability of flipping 3 heads in a row is (0.5)³ = 0.125.

The probability of flipping one tail is also 0.5, so the probability of flipping 3 tails in a row is (0.5)³ = 0.125.

The probability of winning the game, which is flipping 3 heads after flipping 3 tails, is (0.125)² = 0.015625.

So, the probability of winning the game is approximately 0.016, or 1.56%.

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match the direction fields labeled a through d with the differential equation below. 1. y′=y 2x 2. y′=y−2x 3. y′=1−xy 4. y′=xy y

Answers

The solutions that match the given differential equation are a)y=0 and b)y=2x.

The differential equation is a homogeneous linear differential equation with constant coefficients, which can be written in the form of y" + p(x)y' + q(x)y = 0. The general solution to this type of equation is y = c1e^(rx) + c2e^(rx) where r is the root of the characteristic equation r^2 + p(x)r + q(x) = 0.

In this case, the equation is of the form xy'' - y' = 0. By dividing both sides by x, we get y'' - (1/x)y' = 0, which is a homogeneous linear differential equation with constant coefficients. The characteristic equation is r^2 - (1/x)r = 0. The roots of this equation are r1 = 0 and r2 = 1/x.

Therefore, the general solution to this differential equation is y = c1 + c2x.

y=0 is a solution of the differential equation since it satisfies the equation when plugged in.

y=2x is also a solution of the differential equation since it also satisfies the equation when plugged in.

y=2x^2 and y=2 are not solutions of the differential equation because when plugged into the equation they don't satisfy it.

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8w + 5?? Please help i'm so DUM

Answers

The required value of w in the given expression is 1, as per the given conditions.

What are equation models?

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
The question seems to be incomplete, assume that the given expression 8w + 5 = 13
So

8w + 5 = 13
simplify

8w = 13 - 5
w = 8 / 8
w = 1

Thus, the required value of w in the given expression is 1, as per the given conditions.

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The diagram shows a circle with centre O.
A, B & C lie on the circumference of this circle.
Given that AC is a diameter of the circle and ∠ACB = 59°, find the size of ∠BAC as highlighted in the diagram.

Answers

The required angle ∠BAC is equal to 31

What is the angle sum property of a triangle?

The angle sum property of a triangle states that the sum of interior angles of a triangle is 180°

Given here:  ∠ACB = 59° and the diameter of the circle as AC

Now since AC is diameter , When two angles are subtended by the same arc, the angle at the centre of a circle is twice the angle at the circumference.

Thus ∠ABC= 1/2 × 180

                   =90

Thus ∠BAC= 180-90-59

                    = 31

Hence, The required angle ∠BAC is equal to 31

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Can someone please help me with this? I’m having a hard time understanding. Part a and part b show work please

Answers

Answer:

see bleow

Step-by-step explanation:

supplementary simply means angle 1+ which angle =180

so angle 2 & 4 are supplementary.

if angle 1 = 124, then angle 4 = angle 2 = 180-124 =56

angle 3 = angle 1 =124

use implicit differentiation to find an equation of the tangent line to the graph of the equation at the given point.1 ln 7xy = e7x − y, (1/7, 1)

Answers

The equation of the tangent line to the graph of the equation at the given point (1/7, 1) is [tex]y = 7x - 6/7 + 1.[/tex]

[tex]y' = (7e7x + 7x - 1)/7xy[/tex]

1. Use implicit differentiation to differentiate both sides of the equation with respect to x:

[tex]ln 7xy = e7x − y ln 7xy + (7xy) (y') = (7e7x) + (e7x)(7)[/tex]

2. Solve for y':

[tex]y' = (7e7x + 7x - 1)/7xy[/tex]

3. Plug in the given point to find the slope at that point:

[tex]y' = (7e(1/7) + (1/7) - 1)/(7*(1/7)*1) = (7 + 1 - 1)/1 = 7[/tex]

4. Use the point-slope form of a line to find the equation of the tangent line:

[tex]y - 1 = 7(x - 1/7)y = 7x - 6/7 + 1[/tex]

The equation of the tangent line to the graph of the equation at the given point (1/7, 1) is[tex]y = 7x - 6/7 + 1.[/tex]

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A rectangle,l unit long and b unit wide has an area of A square unit where A=lb. the area of a picture is 3•125m and it's width is 1•25m.Find it's length​

Answers

The length of the picture is 30 meters

How to determine the length of teh picture

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

Area = lb

Also, we have

Area = 3 * 125

Where

Width = 1.25 meters

Substitute the known values in the above equation, so, we have the following representation

3 * 125 = Length * 1.25

Divide both sides by 1.25

Length = 30

Hence, the length is 30 meters

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