If cos ⁡θ=−8/17 and 180°θ < 270°, what is sin θ?

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Sera sells t-shirts at the beach. she believes the price of a t-shirt and the number of t-shirts sold are related. she has been experimenting with different prices for the t-shirts. she has collected a data set with five pairs of data; each consists of the price of a t-shirt and the number of shirts sold. the independent variable, which will go on the x-axis, is . the dependent variable, which will go on the y-axis, is the

Me because i don't understand how to do it.: )