Which transformation will always map a onto itself? a. a 90 degree rotation about its center. b. a reflection across one of its diagonals. c. a 180 degree rotation about its center. d. a reflection across a line joining the midpoints of opposite sides

Evan went to the park and saw for animals each animal was either a duck or dog if he saw a total of 14 legs how many of each animal did he see

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.

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