The science of physics, specifically waves and harmonics, goes hand in hand with the mathematics of trigonometry. We need trigonometry to model the path of a wave traveling through the air or water. Describe another connection between a math topic and a non-math topic, where the math topic is needed to explain and model the non-math topic.

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What is the equation of the graph below? y=sec(x)-4

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?