What type of triangle is formed by joining the points D (17,3), E (18, 1), and
R (4,-1)?

I’m really confused and need your assist me with this question i’ve never been taught

In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points

If cos(θ)=2853 with θin q iv, what is sin(θ)?