In Exercises
Given: 

Find: 

To find:
The value of
Given:
And,
Figure
Calculation:
Sum of acute angles in a right triangle is equal to
Equate the sum of acute angles in a right triangle to
Substitute
Elementary Technical Mathematics
Intermediate Algebra
Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach
Probability and Statistics for Engineering and the Sciences
Understanding Basic Statistics
Finite Mathematics
Calculus: An Applied Approach (MindTap Course List)
Essentials Of Statistics
Finite Mathematics and Applied Calculus (MindTap Course List)
Statistics for The Behavioral Sciences (MindTap Course List)
Calculus: Early Transcendentals
Single Variable Calculus
Calculus: Early Transcendental Functions
Single Variable Calculus: Early Transcendentals, Volume I
Mathematical Applications for the Management, Life, and Social Sciences
Calculus (MindTap Course List)
Mathematical Excursions (MindTap Course List)
Multivariable Calculus
Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
Precalculus: Mathematics for Calculus (Standalone Book)
Calculus of a Single Variable
Elements Of Modern Algebra
Single Variable Calculus: Early Transcendentals
Contemporary Mathematics for Business & Consumers
Trigonometry (MindTap Course List)
Finite Mathematics for the Managerial, Life, and Social Sciences
Calculus: Early Transcendental Functions (MindTap Course List)
Study Guide for Stewart's Multivariable Calculus, 8th
Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th
Research Methods for the Behavioral Sciences (MindTap Course List)
Mathematics For Machine Technology
College Algebra (MindTap Course List)
Research Methods for the Behavioral Sciences (MindTap Course List)
Calculus (MindTap Course List)
STATISTICS F/BUSINESS+ECONOMICSTEXT
Statistics for Business & Economics, Revised (MindTap Course List)
Multivariable Calculus
Introduction To Statistics And Data Analysis