Mathematics - Calculus
Not what you're looking for?
A surveyor needs to determine the distance across a lake. The surveyor selects two points A and B, on one side of the lake, and one point, C, on the other side of the lake forming a triangle. the distance between points A and B is 50 ft. Angle A measures 70 degrees, and angle B measures 65 degrees. A bridge will be built between points A and C.
How long will the bridge be, rounded to the nearest foot?
What is the exact solution for cos^2 x + 4cos x +4 = 4 on the interval [0,2pi]?
Purchase this Solution
Solution Summary
A Complete, Neat and Step-by-step Solution is provided.
Solution Preview
(1) In triangle ABC, AB = 50, C = 180 - (A + B) = 180 - (70 + 65) = 45 deg
By Sine Rule, AB sin C = AC sin ...
Purchase this Solution
Free BrainMass Quizzes
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.
Probability Quiz
Some questions on probability