For which values of constants a, b, and c are the matrices in exercises 40 through 50 diagonalizable

What is the rule for reflection across the y axis

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

Pranza plotted point a in the coordinate plane below.