Und 2020 Problem B.4
Pre-Final
You have given an equal sided triangle with side length a. A straight line connects the center
of the bottom side to the border of the triangle with an angle of a. Derive an expression for
the enclosed area A(a) with respect to the angle (see drawing).
A
А A
ernational Youth Math Challenge

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost