Which system of inequalities represents the graph?

The solid line is described by the equation

... 3x +5y = 10

The shaded portion of the graph is below that line, so you expect something like

... 3x +5y ≤ 10

This matches the 1st and 3rd selections.

The steepest line has an equation like

... 5x +y = 6

The line is dashed and the shading is to the right of it, so you expect something like

... 5x +y > 6.

This matches the 2nd and 3rd selections.

The appropriate selection is the 3rd selection.

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values

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