What is the vertex of the graph of y = -4(x + 2)^2 + 5? a(2,5) b(-2,5) c(5,-2) d(5,2)

If a =6, what is the value of 2a(3b + 5c)?

Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers