EP MATHEMATICS FOR THE TRADES
11th Edition
ISBN: 9780134758817
Author: SAUNDERS
Publisher: PEARSON CO
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Chapter 10.3, Problem 23DE
To determine
The number of panels needed to fit along the 20-m side.
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4.
The revenue (in thousands of dollars) from producing x units of an item is R(x)=8x-0.015 x².
a) Find the average rate of change of revenue when the production is increased from 1000 to 1001 units.
MATH 122
WORKSHEET 3
February 5, 2025
. Solve the following problems on a separate sheet. Justify your answers to earn full credit.
1. Let f(x) = x² - 2x + 1.
(a) Find the slope of the graph of y = f (x) at the point P = (0,1) by directly
evaluating the limit:
f'(0) = lim (
f(Ax) - f(0)
Ax
Ax→0
(b) Find the equation of the tangent line 1 to the graph of ƒ at P.
What are the x and y intercepts of 1 ?
(c) Find the equation of the line, n, through P that is perpendicular to the tangent line l.
(Line n is called the normal line to the graph of f at P.)
(d) Sketch a careful graph that displays: the graph of y = f (x), its vertex point, its
tangent and normal lines at point P, and the x and y intercepts of these lines.
Bonus: Find the coordinates of the second point, Q, (QP), at which the normal
line n intersects the graph of f.
2. A rock is thrown vertically upward with an initial velocity of 20 m/s
from the edge of a bridge that is 25 meters above a river bed. Based
on Newton's Laws of…
1
If ye y = sin x, find dy/dx and dy/dx²
at (0, 0).
Chapter 10 Solutions
EP MATHEMATICS FOR THE TRADES
Ch. 10.1 - True or false: There cannot be an obtuse angle in...Ch. 10.1 - What is the sum of the angles in any triangle?Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Prob. 7AECh. 10.1 - Label the shaded angles as acute, obtuse, right,...
Ch. 10.1 - Prob. 9AECh. 10.1 - Prob. 10AECh. 10.1 - Write the following angles in degrees and minutes....Ch. 10.1 - Write the following angles in degrees and minutes....Ch. 10.1 - Prob. 3BECh. 10.1 - Prob. 4BECh. 10.1 - Write the following angles in degrees and minutes....Ch. 10.1 - Write the following angles in degrees and minutes....Ch. 10.1 - Prob. 7BECh. 10.1 - Write the following angles in degrees and minutes....Ch. 10.1 - Prob. 9BECh. 10.1 - Prob. 10BECh. 10.1 - Prob. 11BECh. 10.1 - Write the following angles in decimal degrees....Ch. 10.1 - Prob. 13BECh. 10.1 - Prob. 14BECh. 10.1 - Write the following angles in decimal degrees....Ch. 10.1 - Prob. 16BECh. 10.1 - Write the following angles in radians. (Round to...Ch. 10.1 - Write the following angles in radians. (Round to...Ch. 10.1 - Write the following angles in radians. (Round to...Ch. 10.1 - Write the following angles in radians. (Round to...Ch. 10.1 - Write the following angles in degrees. (Round to...Ch. 10.1 - Write the following angles in degrees. (Round to...Ch. 10.1 - Write the following angles in degrees. (Round to...Ch. 10.1 - Write the following angles in degrees. (Round to...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - Prob. 4CECh. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - Prob. 14CECh. 10.1 - Prob. 15CECh. 10.1 - Prob. 16CECh. 10.1 - Prob. 17CECh. 10.1 - C. Solve the following problems involving...Ch. 10.1 - Prob. 19CECh. 10.1 - Prob. 20CECh. 10.1 - Prob. 21CECh. 10.1 - Calculate the arc length S and area A for each of...Ch. 10.1 - Prob. 23CECh. 10.1 - Prob. 24CECh. 10.1 - Calculate the arc length S and area A for each of...Ch. 10.1 - Calculate the arc length S and area A for each of...Ch. 10.1 - Calculate the arc length S and area A for each of...Ch. 10.1 - Calculate the arc length S and area A for each of...Ch. 10.1 - Sheet Metal Trades A transition duct is...Ch. 10.1 - Prob. 2DECh. 10.1 - Landscaping In problem 2, if shrubs are planted...Ch. 10.1 - Construction The outfield fencing for a Little...Ch. 10.1 - Construction In problem 4, topsoil must be bought...Ch. 10.1 - Life Skills If a car travels 725 miles in 12.5...Ch. 10.1 - Prob. 7DECh. 10.1 - Prob. 8DECh. 10.1 - Prob. 9DECh. 10.1 - Prob. 10DECh. 10.1 - Prob. 11DECh. 10.1 - Plumbing For the connection shown here, calculate...Ch. 10.1 - Prob. 13DECh. 10.1 - Prob. 14DECh. 10.1 - Agriculture A grain conveyor 70 feet long is...Ch. 10.1 - Machine Trades Find the dimension a on the metal...Ch. 10.1 - Metalworking Find the depth d of the V-slot shown...Ch. 10.1 - Metalworking Find the length w in the casting...Ch. 10.1 - Roofing Find the length L of the rafter in the...Ch. 10.1 - Carpentry A carpenter is building a shelf for a...Ch. 10.2 - If one acute angle of a right triangle measures...Ch. 10.2 - Prob. 2LCCh. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Prob. 9BECh. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Prob. 11BECh. 10.2 - Prob. 12BECh. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Prob. 15BECh. 10.2 - Prob. 16BECh. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Prob. 18BECh. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Prob. 8CECh. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angel A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.3 - Solve for x:0.5=x16Ch. 10.3 - Which of the following numbers has the most number...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - Prob. 6AECh. 10.3 - Prob. 7AECh. 10.3 - Prob. 8AECh. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - Prob. 4BECh. 10.3 - Prob. 5BECh. 10.3 - Prob. 6BECh. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each problem, use the given information to...Ch. 10.3 - For each problem, use the given information to...Ch. 10.3 - Prob. 3CECh. 10.3 - For each problem, use the given information to...Ch. 10.3 - For each problem, use the given information to...Ch. 10.3 - For each problem, use the given information to...Ch. 10.3 - Prob. 7CECh. 10.3 - Prob. 8CECh. 10.3 - Prob. 9CECh. 10.3 - Manufacturing The most efficient operating angle...Ch. 10.3 - Metalworking Find the angle m in the casting...Ch. 10.3 - Plumbing A pipe fitter must connect a pipeline to...Ch. 10.3 - Aviation A helicopter, flying directly over a...Ch. 10.3 - Metalworking Find the angle of taper on the steel...Ch. 10.3 - Prob. 6DECh. 10.3 - Roofing Find the length of the rafter shown....Ch. 10.3 - Prob. 8DECh. 10.3 - Machine Trades Find the depth of cut x needed for...Ch. 10.3 - General Trades A 20-ft ladder leans against a...Ch. 10.3 - Prob. 11DECh. 10.3 - Drafting Find angle a in the figure. (Express your...Ch. 10.3 - Construction A road has a slope of 225. Find the...Ch. 10.3 - Machine Trades Find the missing dimension d in the...Ch. 10.3 - Prob. 15DECh. 10.3 - Machine Trades Find the included angle m of the...Ch. 10.3 - Machine Trades Ten holes are spaced equally around...Ch. 10.3 - Prob. 18DECh. 10.3 - Construction The Santa Teresa municipal building...Ch. 10.3 - Construction A gable roof is to be constructed...Ch. 10.3 - Prob. 21DECh. 10.3 - Prob. 22DECh. 10.3 - Prob. 23DECh. 10.3 - Surveying A surveyor wants to estimate the width...Ch. 10.3 - Prob. 25DECh. 10.3 - Agriculture A grain conveyor is set at an angle of...Ch. 10.4 - True or false: A triangle can have more than one...Ch. 10.4 - Solve for x:6x=38Ch. 10.4 - Solve each triangle. a = 6.5 ft, A = 43, B = 62Ch. 10.4 - Solve each triangle. b = 17.2 in., C = 44.0, B =...Ch. 10.4 - Prob. 3AECh. 10.4 - Solve each triangle. c = 2300 yd, C = 120, B = 35Ch. 10.4 - Solve each triangle. a = 96.0 in., b = 58.0 in., B...Ch. 10.4 - Solve each triangle. b = 265 ft, c = 172 ft, C =...Ch. 10.4 - Prob. 7AECh. 10.4 - Prob. 8AECh. 10.4 - Solve each triangle. a = 625 ft, c = 189 ft, B =...Ch. 10.4 - Solve each triangle. b = 1150 yd, c = 3110 yd, A =...Ch. 10.4 - Solve each triangle. a = 27.2 in., b = 33.4 in., c...Ch. 10.4 - Prob. 12AECh. 10.4 - Prob. 13AECh. 10.4 - Prob. 14AECh. 10.4 - Prob. 15AECh. 10.4 - Prob. 16AECh. 10.4 - Construction In the channel shown in the figure,...Ch. 10.4 - Construction In the channel shown in the figure,...Ch. 10.4 - Construction A triangular traffic island has sides...Ch. 10.4 - Construction The lot shown in the figure is split...Ch. 10.4 - Carpentry Two sides of the sloped ceiling shown in...Ch. 10.4 - Machine Trades For the crankshaft shown in the...Ch. 10.4 - Prob. 7BECh. 10 - Convert angles between decimal degrees and degrees...Ch. 10 - Find the values of trig ratios. (a) sin 26 (b) cos...Ch. 10 - Use the special right triangle relationships to...Ch. 10 - Prob. 4PCh. 10 - Find the angle when given the value of a trig...Ch. 10 - Round sides to the nearest tenth and angles to the...Ch. 10 - Prob. 7PCh. 10 - Prob. 1APSCh. 10 - Convert the following angles as indicated. Express...Ch. 10 - Convert the following angles as indicated. Express...Ch. 10 - Prob. 4APSCh. 10 - Prob. 5APSCh. 10 - Prob. 6APSCh. 10 - Prob. 7APSCh. 10 - Prob. 8APSCh. 10 - Prob. 9APSCh. 10 - Prob. 10APSCh. 10 - Convert the following angles as indicated. Express...Ch. 10 - Convert the following angles as indicated. Express...Ch. 10 - Convert the following angles as indicated. Express...Ch. 10 - Prob. 14APSCh. 10 - Prob. 15APSCh. 10 - Convert the following angles as indicated. Express...Ch. 10 - Calculate the arc length S and area A for each of...Ch. 10 - Calculate the arc length S and area A for each of...Ch. 10 - Calculate the arc length S and area A for each of...Ch. 10 - Calculate the arc length S and area A for each of...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Prob. 7CPSCh. 10 - Prob. 8CPSCh. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Prob. 12CPSCh. 10 - Prob. 13CPSCh. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use the special right triangle relationships to...Ch. 10 - Use the special right triangle relationships to...Ch. 10 - Use the special right triangle relationships to...Ch. 10 - Use the special right triangle relationships to...Ch. 10 - For each problem, use the given information to...Ch. 10 - For each problem, use the given information to...Ch. 10 - For each problem, use the given information to...Ch. 10 - For each problem, use the given information to...Ch. 10 - Prob. 9DPSCh. 10 - For each problem, use the given information to...Ch. 10 - For each problem, use the given information to...Ch. 10 - Prob. 12DPSCh. 10 - Solve the following oblique triangles. a = 17.9...Ch. 10 - Prob. 2EPSCh. 10 - Solve the following oblique triangles....Ch. 10 - Solve each triangle. b = 87.5 in., c = 23.4 in., A...Ch. 10 - Prob. 5EPSCh. 10 - Solve the following oblique triangles....Ch. 10 - Solve the following oblique triangles....Ch. 10 - Solve the following oblique triangles....Ch. 10 - Machine Trades What height of gauge blocks is...Ch. 10 - Aviation The destination of an airplane is due...Ch. 10 - Carpentry Six holes are spaced evenly around a...Ch. 10 - Machine Trades Find the angle of taper of the...Ch. 10 - Electrical Trades A TV technician installs an...Ch. 10 - Construction A bridge approach shown in the figure...Ch. 10 - Machine Trades The helix angle of a screw is the...Ch. 10 - Construction Find the lengths x and y of the beams...Ch. 10 - Prob. 9FPSCh. 10 - Machine Trades Find the head angle a of the screw...Ch. 10 - Machine Trades A machinist makes a cut 13.8 cm...Ch. 10 - Drafting Determine the center-to-center...Ch. 10 - Machine Trades If a lathe makes 286 revolutions in...Ch. 10 - Automotive Trades The wheels on a car have a...Ch. 10 - Construction An amphitheater is in the shape of a...Ch. 10 - Prob. 16FPSCh. 10 - Agriculture Barley has an angle of repose R of 28...
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- 3. Use the graph for problem #35, p175 to answer the questions. The average price (in cents) per gallon of unleaded gasoline in the United States for the years 2010 to 2019 is shown in this chart. Find the average rate of change per year in the average price per gallon for each time period. Source: U.S. Energy Information Administration. a) 2010 to 2013 b) 2012 to 2018 c) 2014 to 2019arrow_forward4. Researchers at Iowa State University and the University of Arkansas have developed a piecewise function that can be used to estimate the body weight (in grams) of a male broiler during the first 56 days of life according to W(t)=48+3.64t+0.6363²+0.00963 t³ if 1St≤28, -1004+65.8t if 28arrow_forward3. Given the function h(x)=(x²+x-12 if x≤1 3-x if x>1' a) Graph the function h(x). Make the graph big enough to be easily read using the space below. Be sure to label all important aspects of the graph. b) Find all values of x where the function is discontinuous. c) Find the limit from the left and from the right at any values of x found in part b.arrow_forward2. Find the instantaneous rate of change for each function f(x)=2x²-x+3 at x=0..arrow_forward4x-3 2. Determine the interval over which the function is continuous. x+4arrow_forward1. Find the average rate of change for the following functions over the given intervals. a) f(x)=4x-2x²+3x between x=-1 and x=4 b) y lnx between x=1 and x=4arrow_forward1. Find all values x=a where the function is discontinuous, determine if the discontinuity is removable or non- removable. For each value of x, give the limit of the function as x approaches a. Be sure to note when the limit doesn't exist and explain how you know. a) f(x)= 2-x x²(x+5) b) f(x)= x²-9x x²+3x c) p(x)=-3x²+2x²+5x-8arrow_forwardTask Description: Read the following case study and answer the questions that follow. Ella is a 9-year-old third-grade student in an inclusive classroom. She has been diagnosed with Emotional and Behavioural Disorder (EBD). She has been struggling academically and socially due to challenges related to self-regulation, impulsivity, and emotional outbursts. Ella's behaviour includes frequent tantrums, defiance toward authority figures, and difficulty forming positive relationships with peers. Despite her challenges, Ella shows an interest in art and creative activities and demonstrates strong verbal skills when calm. Describe 2 strategies that could be implemented that could help Ella regulate her emotions in class (4 marks) Explain 2 strategies that could improve Ella’s social skills (4 marks) Identify 2 accommodations that could be implemented to support Ella academic progress and provide a rationale for your recommendation.(6 marks) Provide a detailed explanation of 2 ways…arrow_forward1. Iodine-131 is tone of the most commonly used radioactive isotopes of iodine. It is used to treat hyper- thyroidism and some kinds of thyroid cancer. (a) Iodine-131 has a half-life of about 8 days. Find an expression for I(t), the mass of Iodine-131 remaining after t days, in terms of t and Io, the initial mass of Iodine-131 present at time t = 0. (b) If a dose of 0.9 mg of Iodine-131 is administered, how much is still present after 24 hours? (c) How much Iodine-131 is present after one week? Does your answer make sense?arrow_forwardQuestion 2: When John started his first job, his first end-of-year salary was $82,500. In the following years, he received salary raises as shown in the following table. Fill the Table: Fill the following table showing his end-of-year salary for each year. I have already provided the end-of-year salaries for the first three years. Calculate the end-of-year salaries for the remaining years using Excel. (If you Excel answer for the top 3 cells is not the same as the one in the following table, your formula / approach is incorrect) (2 points) Geometric Mean of Salary Raises: Calculate the geometric mean of the salary raises using the percentage figures provided in the second column named “% Raise”. (The geometric mean for this calculation should be nearly identical to the arithmetic mean. If your answer deviates significantly from the mean, it's likely incorrect. 2 points) Starting salary % Raise Raise Salary after raise 75000 10% 7500 82500 82500 4% 3300…arrow_forwardd₁ ≥ ≥ dn ≥ 0 with di even. di≤k(k − 1) + + min{k, di} vi=k+1 T2.5: Let d1, d2,...,d be integers such that n - 1 Prove the equivalence of the Erdos-Gallai conditions: for each k = 1, 2, ………, n and the Edge-Count Criterion: Σier di + Σjeл(n − 1 − d;) ≥ |I||J| for all I, JC [n] with In J = 0.arrow_forwardT2.4: Let d₁arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_iosRecommended textbooks for you
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