Holly took 2/8 of a pan of brownies. Ivan took 5/8 of a pan of brownies. How much more of the pan of brownies did Ivan take than Holly?

3/8

Step-by-step explanation:

We'll simply subtract the number of pan of brownies Holly took from that which Ivan took

This gives;

5/8 - 2/8

=

= 3/8

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

55 degrees because 55+55=110 degrees