Cho hình chóp tứ giác đều SABCD có cạnh đáy bằng a, góc giữa mặt bên và đáy bằng 60. Gọi I là tâm của mặt cầu ngoại tiếp hình chóp S. ABCD. Tính khoảng cách từ I đến mặt phẳng (SAB)

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? 1. define a variable for the situation. 2. write an inequality that represents the situation. 3.solve the inequality to find out how many months he needs to keep the website for site a to be less expensive than site b. 4. using words, describe how many months he needs to keep the website for site a to be less expensive than site b.

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup