Thể tích của một vật thể V giới hạn bởi mặt cong kín S được tính theo công
thức nào sau đây?

The distance around the lake is 2 kilometers. ifelena wants to run 14 kilometers this week, howmany laps must she run around the lake

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

Find the quotient. 50a2 – 98b2 -5a +7b