- 6-7.1: Studio Problem: A contractor plans to build an artists studio with ...
- 6-7.2: Detour Problem: Suppose that you are the pilot of an airliner. You ...
- 6-7.3: Pumpkin Sale Problem: Scorpion Gulch Shelter is having a pumpkin sa...
- 6-7.4: Underwater Research Lab Problem: A ship is sailing on a path that w...
- 6-7.5: Truss Problem: A builder has specifications for a triangular truss ...
- 6-7.6: Mountain Height Problem: A surveying crew has the job of measuring ...
- 6-7.7: Rocket Problem: An observer 2 km from the launching pad observes a ...
- 6-7.8: Grand Piano 2: The lid on a grand piano is held open by a 28-in. pr...
- 6-7.9: Airplane Velocity Problem: A plane is flying through the air at a s...
- 6-7.10: Canal Barge Problem: In the past, it was common to pull a barge wit...
- 6-7.11: Airplane Lift Problem: When an airplane is in flight, the air press...
- 6-7.12: Ships Velocity Problem: A ship is sailing through the water in the ...
- 6-7.13: Wind Velocity Problem: A navigator on an airplane knows that the pl...
- 6-7.14: Space Station 1: Ivan is in a space station orbiting Earth. He has ...
- 6-7.15: Visibility Problem: Suppose that you are aboard a plane destined fo...
- 6-7.16: Hinged Rulers Problem: Figure 6-7k shows a meterstick (100-cm ruler...
- 6-7.17: Surveying 2: A surveyor measures the three sides of a triangular fi...
- 6-7.18: Surveying 3: A field has the shape of a quadrilateral that is not a...
- 6-7.19: Surveying 4: Surveyors find the area of an irregularly shaped tract...
Solutions for Chapter 6-7: Real-World Triangle Problems
Full solutions for Precalculus with Trigonometry: Concepts and Applications | 1st Edition
Additive inverse of a real number
The opposite of b , or -b
A flaw in the design of a sampling process that systematically causes the sample to differ from the population with respect to the statistic being measured. Undercoverage bias results when the sample systematically excludes one or more segments of the population. Voluntary response bias results when a sample consists only of those who volunteer their responses. Response bias results when the sampling design intentionally or unintentionally influences the responses
The numbers in Pascal’s triangle: nCr = anrb = n!r!1n - r2!
The function y = csc x
Two angles having the same initial side and the same terminal side
The number found when the corresponding components of two vectors are multiplied and then summed
Vectors with the same magnitude and direction.
Extracting square roots
A method for solving equations in the form x 2 = k.
Matrix, m x n
A rectangular array of m rows and n columns of real numbers
Multiplication property of inequality
If u < v and c > 0, then uc < vc. If u < and c < 0, then uc > vc
Multiplicative inverse of a matrix
See Inverse of a matrix
The multiplicity of a zero c of a polynomial ƒ(x) of degree n > 0 is the number of times the factor (x - c) (x - z 2) Á (x - z n)
A set of n objects.
Product of functions
(ƒg)(x) = ƒ(x)g(x)
See Viewing window.
Rectangular coordinate system
See Cartesian coordinate system.
A finite or infinite sum of terms.
Solution of a system in two variables
An ordered pair of real numbers that satisfies all of the equations or inequalities in the system
A procedure used to divide a polynomial by a linear factor, x - a
Vector equation for a line in space
The line through P0(x 0, y0, z0) in the direction of the nonzero vector V = <a, b, c> has vector equation r = r0 + tv , where r = <x,y,z>.