A welder is welding a part of a structures base that needs to be perpendicular to each other. The legs are laid out using this equation 3(4x + 2) = 2y - 4. While the base is laid out using this equation 6(y + 5) + 3 = -x + 3.
Are the legs perpendicular to the base yes or no? Explain your answer and provide your work to support your
answer.

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Hello, i need compare km^2 and km. what's difference in this?

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm2. what is the area of the second triangle?