5) Nick purchased a rookie card in the year 2010 for $100. Experts estimate that its value will decrease by 20% each year. Write a function f(t) to model
the situation, where f(t) represents the value of the card and t represents
the time in years since 2010.
PLEASE HELP!

2÷6+1/2 to the second power plus one

Which statement is true 1.the pythagorean theorem can be used to find the missing side of any triangle 2.the pythagorean theorem can be used to find the missing side of any polygon 3. the pythagorean theorem can be used to find the missing side of any right triangle 4.the pythagorean theorem can be used to find the missing side of any isosceles triangle

Find the cosine function that is represented in the graph.