Gavin is working two summer jobs, making $20 per hour lifeguarding and making $6 per hour walking dogs. In a given week, he can work no more than 10 total hours and
must earn at least $90. If x represents the number of hours lifeguarding and y
represents the number of hours walking dogs, write and solve a system of inequalities
graphically and determine one possible solution.
Inequality 1: y 24
plot
switch shade

chiken

step-by-step explanation:

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.

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

the answer is -1 for this question

step-by-step explanation: