The largest marine animal is the blue whale, with an average mass of about 1.7 times 10 to the 5th power kilogram. the largest land animal ever is thought to be a dinosaur that had a mass of about 8 times 10 to the 4th power kilogram. what is the approximate difference in the mass between these two animals?

answer: add the !

step-by-step explanation: then we will answer

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

52 \43 i don't know this i tried