Which system of equations has a solution of approximately (–2.7, –1.2)? 4 x minus 5 y = negative 5 and 3 x + 10 y = negative 20
4 x minus 5 y = 5 and 3 x + 10 y = 20
4 x minus 5 y = 5 and 3 x + 10 y = negative 20
4 x minus 5 y = negative 5 and 3 x + 10 y = 20

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv