You will use many different types of equations and inequalities in your study of mathematics and algebra. What are some of the types of equations you’ve encountered? Have you encountered situations that would require multiple equations to model? Describe a situation that would require more than one equation to properly model.

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)