What is lim(x->0) of (1-cosx)/sinx without lhopital rule?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.