Wtrójkącie równoramiennym abc podstawa ab ma długość 10cm. odcinek ad jest wysokością tego trójkąta. wiedząć że |db|=6cm, oblicz obwód trójkąta.

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.