Cho đoạn thẳng AB=7cm. Trên tia AB lấy điểm C sao cho AC= 4cm a)Tính độ dài đoạn thẳng BC b)Trên tia đối của tia BC lấy điểm D sao cho BD=3cm. Tính độ dài đoạn thẳng CD c)Điểm B có là trung điểm của đoạn thẳng CD không?

Our goal is to collect email addresses from 60% of customers who purchase a product." so that means if i talk to 95 customers, i need to persuade to provide an email address?

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?