Triunghiurile ABC și DBC sunt dreptunghice, ∢A = ∢D = 90° și E este mijlocul laturii BC. a) Dacă punctele A, E, D nu sunt coliniare, demonstrați că triunghiul triunghiul AED este isoscel. b) Dacă AD⊥ BC, arătați că Δ ABC ≡ Δ DBC. dau corona

Which equation represents the partial sum of the geometric series?

Someone answer asap for ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.