2. Clara conducted a survey among 200 teenagers and 100 adults to study their consumer habits. It was found that 21% of teenagers and 45% of adults check reviews of products online before
purchasing a product. Which group is in!uenced more by online reviews?
I need this Pls help

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step-by-step explanation:

just for that im not answering

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