Góc lượng giác có số đo  (rad) thì mọi góc lượng giác có cùng tia đầu và tia cuối với nó có số đo bằng.

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal

Vinny is interviewing for a job.he wants his take home pay to be at least $42,000.what is the least salary he can earn if he pays 25% income tax?