The owner of a landscape company gave a survey to customers asking them to rate the quality of the work of the crew that did their landscaping. Each respondent rated the quality as high, medium, or low.
The data were compiled and reported in the table, which shows the relative frequency of each rating
by row. A total of 70 people responded about the quality of the work of Crew B. How many of these
people gave Crew B a rating of "high"?

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

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

your answer is c. 97 (don't delete this again)

step-by-step explanation: