I WILL GIVE BRAINLIEST PLS HELP ME The mass of a piece of iron pyrite or "fools gold" is 52.7 g.. The volume is 11 cm3. What is the density?

a
5.2 g/cm3

b
10.4 g/cm3

c
20.8 g/cm3

d
2.6 g/cm3

AND NO DUMB AWNSERS I NEED A ACTUAL AWNSER

Given (1+cosx)/(sinx) + (sinx)/(1+cosx) =4, find a numerical value of one trigonometric function of x. a. tanx=2 b. sinx=2 c. tanx=1/2 d. sinx=1/2

What is the value of x in the figure below? if necessary, round your answer to the nearest tenth of a unit. 12 d 4 b оа. 3.1 ов. 6.9 ос. 4 od. 12

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?