A surveyor plays a crucial role in land surveying and mapping, using various tools and techniques to accurately measure and analyze land features.
Trigonometric functions are fundamental mathematical tools that surveyors rely on to solve problems involving angles, distances, and elevations. By employing trigonometry, surveyors can determine the precise locations of points, measure distances between objects, and calculate elevations with accuracy and efficiency. This essay will explore how surveyors utilize trigonometric functions in their work, highlighting key vocabulary words and providing three detailed examples.
One of the primary applications of trigonometry in surveying is angle measurement. Surveyors use the concept of trigonometric ratios, such as sine, cosine, and tangent, to determine angles between reference points. By measuring the lengths of sides in a triangle formed by the surveyor's position and the target point, trigonometric functions enable them to calculate the unknown angles. For instance, when surveying a land boundary, a surveyor may use the tangent function to determine the angle of deflection between two adjacent lines, helping establish accurate boundary lines.
Another crucial application of trigonometry in surveying is distance measurement. By utilizing trigonometric principles, surveyors can measure distances that are difficult or impractical to physically traverse. For instance, when faced with measuring the width of a river or the height of a tall structure, a surveyor can employ trigonometry along with the concept of similar triangles. By measuring the angles of elevation or depression from the surveyor's position to the target point and knowing the distance between two reference points, they can calculate the unknown distance using trigonometric functions like sine or tangent.
Elevation determination is yet another area where surveyors rely on trigonometric functions. By combining angle measurements and distance measurements, surveyors can determine the elevation of a specific point above a reference level. For example, when conducting a topographic survey to create a contour map, surveyors measure the angles of elevation or depression to various points on the terrain. By applying trigonometry, they can calculate the differences in elevations between these points and establish contour lines representing the shape and relief of the land.
In conclusion, trigonometric functions are indispensable tools for surveyors in their day-to-day work. Angle measurement, distance measurement, and elevation determination are just a few examples of how surveyors employ trigonometry to accomplish accurate and precise land surveying. By understanding trigonometric concepts and utilizing key vocabulary words such as sine, cosine, tangent, angles of deflection, and angles of elevation, surveyors can confidently carry out their tasks, ensuring reliable measurements and mapping of land features. Trigonometry empowers surveyors to overcome challenges in measuring angles, distances, and elevations, contributing to the accurate representation of the physical world and supporting various engineering and construction projects.
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Use the data to answer questions 1-8.
8-iron, distance to hole (vards) 20 12 12 8 6 11 7 7 10 12 8 10 11 20
1) Organize the data from least to greatest.
6,7,7,8,8,10,10,11,11,12,12,12,20,20
2) Use the data to create a histogram.
Frequency
5 10 15 20 25 30
Distance to Hole (yds)
3) What is the mean (average) of the data? Round your answer to the nearest tenth.
4) Make a box plot of the data.
5 10 15 20 25 30
Distance to Hole (yds)
5) What is the median of the data?
6) What is the First Quartile(Q1)?
7) What is the Third Quartile(Q3)?
CODIO
Can somebody help with the whole thing?? All besides number 1
200 People all speak at least one language, 73% speak german 62 % speak italian, how many speaks both languages ?
Answer:
70 people speak both languages-----------------
Use formula:
Total = German speakers + Italian speakers - BothWe are given:
Total number of people = 200 German speakers = 73% of 200 = 0.73 * 200 = 146 Italian speakers = 62% of 200 = 0.62 * 200 = 124 Both = xSubstitute given and solve for x:
200 = 146 + 124 - x 200 = 270 - x x = 270 - 200 x = 70So, 70 people speak both German and Italian.
Estimate 94.44 + 65.392 by first rounding each number to the nearest whole number.
Six packs of cola are on sale for $1.50. If a customer buys a 24 pack
Find the area of each figure. Round to the nearest tenth, if necessary
Answer:
Solution is in the attached photo.
Step-by-step explanation:
This question tests on the concept of shapes, this shape can be separated into 2 basic shapes, triangle and rectangle.
The table shows the mass of four packages. What is the total mass of the packages?
The total mass of the four packages is given as follows:
37.67 kg.
How to obtain the total mass of the four packages?The total mass of the four packages is obtained adding the masses of each package given on the table for this problem.
From the table given in this problem, the mass for each package is given as follows:
Package 1: 3.94 kg.Package 2: 14.81 kg.Package 3: 11.27 kg.Package 4: 7.65 kg.Hence, adding these amounts, the total mass of the package is obtained as follows:
3.94 + 14.81 + 11.27 + 7.65 = 37.67 kg.
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Find the value of x.
The calculated value of x in the circle is 7
How to find the value of x.From the question, we have the following parameters that can be used in our computation:
The circle
From the circle, we have
Center = H
Also, we have
LIne GH bisects the chord FD
Using the above as a guide, we have the following:
DG = FG
So, we have
5x + 2 = 7x - 12
This gives
2x = 14
So, we have
x = 7
Hence, the value of x is 7
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Colin walks two times around at one and 1 7/8 mile trail there are park benches everywhere 1/4 mile long trail but there are no benches at the store or another trail how many park benches are there in the trail
Answer:
15
Step-by-step explanation:
2 x 1 and 7/8 = 3 and 6/8 miles
= 3.75 miles
Since there are park benches every 1/4 mile on the trail, we can find the number of benches by dividing the total length of the trail by the distance between the benches:
Number of benches = (3.75 miles) / (1/4 mile per bench)
Number of benches = 15
Can I have help finding the area
Answer: For Area A, 60
For Area B, 16
For Area C, 16
For the entire shape, 92
Step-by-step explanation:
If you look at the top of the entire shape, it says the width is 10 cm, that means 10 cm's for the entire width and not just shape A.
If you look at shape B, it says the width is 4 cm, that means 4 out of those 10 cm's are for B and not A but we dont need the width of shape B, so we subtract that 4 bc it isnt necessary since its not in shape A
if you look at the left of shape A, it says 10 cm for the height, when finding area for a rectangle, always do width x height. We have both the width and the height so now we just multiply them, 10 x 6 = 60
Answer:
A = 60cm^2
Step-by-step explanation:
Given:
Length of figure: A = 10cm
Width of figure: B = 10 - 4 = 6cm
Figure A is rectangular in nature.
So, the Area of the figure: A = 1 x b = 10 x 6 = 60cm^2
nathan makes $10 an hour delivering pizzas and $5 an hour babysitting his sister. he wants to make atleast $40, and his mom said he has to work for less than six hours a week. put this into a system of inequalities equation
Step-by-step explanation:
Let's denote the number of hours Nathan works delivering pizzas as "x" and the number of hours he works babysitting as "y." We can set up the following system of inequalities:
Nathan's total earnings should be at least $40:
10x + 5y ≥ 40
Nathan's total working hours should be less than six hours a week:
x + y < 6
These two inequalities represent the given conditions that Nathan wants to make at least $40 and work for less than six hours a week.
Do you know Squidward? According to a survey by Nickelodeon TV, 82% of children under 13 in Germany recognized a picture of the cartoon character SpongeBob SquarePants. Assume that among those children, 83% also recognized SpongeBob's cranky neighbor Squidward Tentacles. What is the probability that a German child recognized both SpongeBob and Squidward? Write your answer as a fraction or a decimal, rounded to four decimal places.
Luna has 8 pints of juice. Michael has 2% times as many
pints of juice as Luna.a) How many pints of juice does Michael have?b) How many more pints of juice does Michael have than
Luna?Give your answers as whole numbers or as fractions in their simplest form.
Answer: 0.16
Step-by-step explanation:
Suppose a random sample of size 48 is selected from a population
The caluclated values are:
1.241.30 1.30 How to solve for the valuesN = 500:
SEM = 9 * √[(500 - 48) / (500 - 1)] / √(48)
= 1.24 (rounded to 2 decimals)
N = 5000:
SEM = 9 * √t[(5000 - 48) / (5000 - 1)] / √(48)
= 1.30 (rounded to 2 decimals)
N = 50000:
SEM = 9 * √[(50000 - 48) / (50000 - 1)] / √(48)
= 1.30 (rounded to 2 decimals)
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i need help with this problem
The value of x is 40 degree.
We have,
Far Arc = 130 degree
Near Arc = 50 degree
According to "Angle-Arc Theorem." It states that the angle formed by the intersection of two tangents, two secants, or one tangent and one secant outside a circle is equal to half the difference of the intercepted arcs.
In other words, The angle formed outside of the circle is always equal to the the far arc minus the near arc divided by 2.
Using Angle = (Far Arc - Near Arc) /2
So, x= (130- 50)/2
x = 80/2
x= 40
Thus, the value of x is 40 degree.
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The data set below represents the number of books checked out at the library each day. 21, 12, 15, 17, 6, 3, 19 Choose the correct answer from each drop-down menu to complete the statements. The range is books checked out. The median is books checked out.
The median and the range for the data-set are given as follows:
Median of 15 books checked out.Range of 18 books checked out.How to obtain the median and the range of a data-set?The median of a data-set is the middle value of a data-set, the value of which 50% of the measures are less than and 50% of the measures are greater than. Hence, the median also represents the 50th percentile of a data-set.
The ordered data-set is given as follows:
3, 6, 12, 15, 17, 19, 21.
The middle value is of 15, hence it represents the median of the data-set.
The range of a data-set is defined as the difference between the largest and the smallest value in the data-set, hence:
21 - 3 = 18.
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two numbers have a sum of 10. find the minimum value that the sum of their cubes could be
Let [tex]x[/tex] be one of the numbers. Then the other one is [tex]10-x[/tex].
Therefore, the sum of their cubes is:
[tex]x^3+(10-x)^3=x^3+1000-300x+30x^2-x^3=30x^2-300x+1000[/tex]
Now we need to find the minimum value of the resulting function.
[tex](30x^2-300x+1000)'=60x-300[/tex]
[tex]60x-300=0\\60x=300\\x=5[/tex]
The derivative is negative to the left of [tex]5[/tex] and positive to the right of it, therefore, at [tex]5[/tex] there exists the minimum.
[tex]5^3+(10-5)^3=125+125=250[/tex]
Therefore, the minimum value is 250.
A relationship is represented by the equation y = x - 12 which of the following tables best represent the equation
A table that best represent the equation include the following: H. table H.
How to determine the table that best represent the equation?In order to determine the table that best represent the equation, we would have to substitute each of the values of x (x-values) into the linear function and then evaluate as follows;
When the value of x = 1 in table F, the linear function is given by;
y = x - 12
y = 1 - 12
y = -11 (False).
When the value of x = 0 in table G, the linear function is given by;
y = x - 12
y = 0 - 12
y = -12 (True).
When the value of x = 2 in table G, the linear function is given by;
y = x - 12
y = 2 - 12
y = -10 (False).
When the value of x = 0 in table H, the linear function is given by;
y = x - 12
y = 2 - 12
y = -10 (True).
When the value of x = 4 in table H, the linear function is given by;
y = x - 12
y = 4 - 12
y = -8 (True).
When the value of x = 6 in table H, the linear function is given by;
y = x - 12
y = 6 - 12
y = -6 (True).
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
II. Record in a university shows that 60% of students here get a job within 2 months after graduation. Past records indicate that for students in the school who get a job within 2 months after graduation, 70% gets scholarship at least one time during university. For those who can not get a job within 2 months, 25% get at least one university scholarship. Randomly select 1 student. Answer the following question:
a. What is the probability that the selected student does not get a scholarship, given that he cannot
get a job within 2 months after graduation?
b. What is the probability that the selected student gets no university scholarship?
To answer the given questions, let's use conditional probability based on the information provided:
a. To find the probability that the selected student does not get a scholarship, given that they cannot get a job within 2 months after graduation, we can use Bayes' theorem. Let's denote the events as follows:
A: Not getting a scholarship
B: Not getting a job within 2 months after graduation
We want to find P(A|B), which is the probability of not getting a scholarship given that the student cannot get a job within 2 months. According to the given information, 25% of students who cannot get a job within 2 months get at least one university scholarship.
Using Bayes' theorem:
P(A|B) = (P(B|A) * P(A)) / P(B)
P(B|A) is the probability of not getting a job within 2 months given that the student does not get a scholarship. Since this information is not provided, we cannot determine this probability.
b. To find the probability that the selected student gets no university scholarship, we can use the law of total probability. Let's denote the events as follows:
A: Not getting a scholarship
B: Getting a job within 2 months after graduation
C: Not getting a job within 2 months after graduation
We want to find P(A), the probability of not getting a university scholarship. According to the given information, 60% of students get a job within 2 months after graduation, and among those students, 70% get at least one university scholarship. For students who cannot get a job within 2 months, 25% get at least one university scholarship.
Using the law of total probability:
P(A) = P(A|B) * P(B) + P(A|C) * P(C)
We don't have the values for P(A|B) or P(B) and P(A|C) or P(C), so we cannot calculate the exact probability of not getting a university scholarship.
Therefore, without additional information or values for conditional probabilities, we cannot provide specific numerical answers to these questions.
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2. Janice polled her friends on social media and asked them to rate four flavors of ice cream (C= (1 point)
chocolate, V = vanilla, S = strawberry, P=pistachio). The preference schedule created from
their replies is shown. In order to be the majority winner, how many votes would an ice cream
need to accumulate?
number of votes 3 5 7 9
1st
2nd
3rd
4th
SSCV
CVVC
VPSS
PCPP
O An ice cream would need more than 12 votes from anywhere in the preference schedule.
O An ice cream would need 12 votes from anywhere in the preference schedule.
O An ice cream would need more than 12 votes from the first-place line in the preference schedule.
O An ice cream would need 12 votes from the first-place line in the preference schedule.
The correct statement would be: An ice cream would need more than 9 votes from the first-place line in the preference schedule.
To determine the number of votes an ice cream would need to accumulate in order to be the majority winner, we should analyze the preference schedule provided.
Looking at the preference schedule, we can see that there are four ice cream flavors:
Chocolate (C), vanilla (V), strawberry (S), and pistachio (P).
Each row represents the rankings given by Janice's friends.
To be the majority winner, an ice cream flavor would need to accumulate more votes than any other flavor.
In this case, we can determine the highest number of votes an ice cream flavor can receive by considering the first-place line in the preference schedule.
From the first-place line, we can see that the maximum number of votes any flavor has received is 9.
Therefore, an ice cream flavor would need more than 9 votes from the first-place line to be the majority winner.
Based on the given options, the correct statement would be: An ice cream would need more than 9 votes from the first-place line in the preference schedule.
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Pls help me and find out which 2 I got wrong I need it for my corrections pls help I don’t know which 2 I got wrong
The value of ascending order of numbers are,
⇒ (- 1/2)², 30%, 5/8, 5⁰ , |2|
We have to given that,
All the numbers are,
⇒ 5⁰
⇒ |2|
⇒ (- 1/2)²
⇒ 5/8
⇒ 30%
Now, We can simplify each as,
⇒ 5⁰
⇒ 1
⇒ |2|
⇒ 2
⇒ (- 1/2)²
⇒ 1/4
⇒ 0.25
⇒ 5/8
⇒ 0.625
⇒ 30%
⇒ 30/100
⇒ 0.3
Hence, Ascending order is,
0.25, 0.3, 0.625, 1 , 2
Or,
⇒ (- 1/2)², 30%, 5/8, 5⁰ , |2|
Thus, The value of ascending order of numbers are,
⇒ (- 1/2)², 30%, 5/8, 5⁰ , |2|
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68 65 62 72 70 79 66 72 68 63 70 68 MeanMedianMode(s)Range
The mean, median, mode and range of the data are 68.58, 68, 68 and 17 respectively.
What are measures of central tendency?A measure of central tendency is a single value that attempts to describe a set of data by identifying the central position within that set of data.
1. The mean of the data is;
mean = 62 + 63 + 65 + 66 + 68 + 68 + 68 + 70 + 70 + 72 + 72 + 79 / 12
mean = 68.58
2. The median of the data = 68
3. The mode of the data = 68
4. The range of the data = 17
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please help! thank uu ~ :)
Answer:
d. Certain
Andres will always roll a number greater than or equal to 1 since 1 is the lowest number on the die. Therefore, the probability of rolling a number greater than or equal to 1 is certain.
As a salesperson at Scrapbooks and
Treasures, Alysse receives a monthly
base pay plus commission on all that she
sells. If she sells $500 worth of
merchandise in one month, she is paid
$515. If she sells $900 of merchandise in
one month, she is paid $607.
Find Alysse's total salary function, s(x), when
she sells x dollars of merchandise.
s(x)=
Answer:
s(x) = 0.23x + 400
Step-by-step explanation:
Let x = cost of merchandise sold
We start by finding the slope which is the percent of commission Alysse receives.
Let's start with doing 607 - 515. This is because we are subtracting the commissions, which also can be y2 - y1. Then, we do 900-500=400 (x2-x1). This is how to find the slope of the function. [tex]\frac{y2-y1}{x2-x1}=\frac{92}{400} =0.23[/tex], 0.23 being the slope.
s(x) = b+0.23x, now substitute values making the money received as s(x).
515 = b+0.23(500)
515=b+115
-115 -115
400 = b
607 = 400+0.23(900)
607 = 400 + 207
607 = 607
So, s(x) = 0.23x + 400
Problema 1
En una calculadora se tecleó 35 X 100, pero se
cometió un error ya que se quería multiplicar
por 50. ¿Cómo se corrige sin borrar lo que ya
está?
The way to correct the entry on the calculator without deleting what is already there is by multiplying by 2.
Why would this correct the entry ?Consider the scenario at hand, where an inadvertent error was committed during a calculator operation. The initial intention was to multiply by 100, yet the input mistakenly resulted in a multiplication by 50.
Seeing as this is multiplication, and the number that was to be multiplied is larger than the number given, you can find the quotient of the larger number from the smaller number to be :
= 100 / 50
= 2
Then multiply the entry by 2 as this would then lead to the correct result of 3, 500.
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A plug is removed from a trough to drain the water. The volume, in gallons, in the trough after it has been unplugged can be modeled by the expression 10x2 − 11x + 3, where x is the time in minutes. Choose the appropriate form of the expression that would reveal the time, in minutes, when the trough is empty. (1 point)
10(0)2 − 11(0) + 3
(5x − 3)(2x − 1)
10(x − 3)2 − 1
10(x − 1)2 − 3
When A plug is removed from a trough to drain the water, The appropriate form of the expression is 10(x - 1)² - 3. Option D
How to determine the appropriate form of expressionThe appropriate form of the expression that would reveal the time, in minutes, when the trough is empty is: 10(x - 1)² - 3.
This expression represents the volume of the trough after the plug is removed, with x representing the time in minutes. When the volume of the trough is equal to zero, it means the trough is empty.
Therefore, setting the expression equal to zero and solving for x will give us the time when the trough is empty.
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50 Points! Multiple choice algebra question. Photo attached. Thank you!
Answer:
C
Step-by-step explanation:
using the sine ratio in the right triangle
sin P = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{QR}{PQ}[/tex] = [tex]\frac{12}{13}[/tex] , then
∠ P = [tex]sin^{-1}[/tex] ( [tex]\frac{12}{13}[/tex] ) ≈ 67° ( to the nearest degree )
100 Points! Algebra question. Photo attached. Will give Brainliest! Please show as much work as possible. Thank you!
Answer:
6.6, 22/73,
Step-by-step explanation:
Alright, here we go.
A: The mean is all of the values divided by the number of values, which is equal to 1,927.5 or:
0.5 * 5 + 1 * 16 + 2 * 28 + 3 * 22 + 4 * 17 + 5 * 98 + 8 * 13 + 10 * 73 + 12 * 5 + 15 * 2 + 20 * 4 + 25 * 9.
There are 292 or 5 + 16 + 28 + 22 + 17 + 98 + 13 + 73 + 5 + 2 + 4 + 9 packages. 1,927.5 / 292 = 6.6
B: The packages that weigh less than five pounds are 5 + 16 + 28 + 22 + 17 or 88 / 292 = 22 / 73
C and D: Manager original mean result not given.
In AOPQ, 0 = 180 cm, p = 280 cm and ZQ=84°. Find the area of AOPQ, to the
nearest square centimeter.
The area of the triangle is 25061.6 cm²
What is area of triangle?A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices. A triangle is also a polygon.
The area of a triangle is expressed as;
A = 1/2bh where b is the base a d h is the height. This formula only works for right angled triangle.
Another formula for area of triangle is 1/2 absinC
a = 180cm
b = 280cm
C = 84°
A = 1/2 × 180 × 280 × sin84
A = 50123.9/2
A = 25061.6 cm²
Therefore the area of triangle OPQ is 25061.6 cm².
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considering the unit price per ib of jelly beans, how much would a 25-pound shipment cost? i need answers ASAP
With the unit price of $5 per pound, the 25-pound shipment would cost $125.
We have,
To determine the cost of a 25-pound shipment of jelly beans, you would need the unit price per pound of jelly beans.
Without that information, it's not possible to calculate the total cost accurately.
Once you have the unit price per pound, you can simply multiply it by the weight of the shipment.
For example, if the unit price per pound is $5, then the cost of a 25-pound shipment would be:
Cost = Unit Price per Pound × Weight of Shipment
= $5/pound × 25 pounds
= $125
Thus,
With the unit price of $5 per pound, the 25-pound shipment would cost $125.
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Fine the coordinates of the hole
The coordinates of the hole of the rational function are (-3, -3).
How to find the coordinates of the hole?Here we have the following rational function:
[tex]f(x) = \frac{x^2 + 3x}{x + 3}[/tex]
The hole is when the denominator becomes zero, that is at x = -3
Now, we can rewrite the numerator as:
x² + 3x = x*(x + 3)
Then we can rewrite the function as:
[tex]f(x) = \frac{x^2 + 3x}{x + 3} = \frac{x*(x + 3)}{x + 3} = x[/tex]
Evaluating that in x = -3 we get f(x) = -3, then the coordinates of the hole aer (-3, -3).
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