Answer + to start the proof of the law of cosines, an altitude is constructed. which of the following is formed due to the construction of the altitude in a non-right triangle? a. one right triangle b. one acute triangle c. two right triangles d. two acute triangles

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?