Is x^2+2bx-v^2 a perfect square trinomial?​

Abuyer pays a deposit to the seller in advance before completing the transaction. which term best defines this? a. down payment b. earnest money c. mortgage application fee

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )