If you need more than 60% of the students surveyed to like your product how many out of 500 would you have to survey

if you use photomath right away it will give you the answer not like this app that you have to wait for people.

d 600 because 15*10*2=300

300+300=600

step-by-step explanation:

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