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The ABC Toy Company is creating two similar pieces for a board game, as shown. How could the toy maker confirm that the pieces are similar using a transformation?

triangles ABC and DEF

Verify ∠A ≅ ∠D and ∠B ≅ ∠E by translation.
Verify segment AB ≅ segment DE and segment BC ≅ segment EF by translation.
Verify ∠A ≅ ∠D and ∠B ≅ ∠E by reflection.
Verify segment AB ≅ segment DE and segment BC ≅ segment EF by reflection.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Indicate the formula for the following conditions: p^c(n,r)=

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0