2x + y = 14
x + 2y = 16

x= −1/2 y+7

Step-by-step explanation:

Let's solve for x.

2x+y=14

Step 1: Add -y to both sides.

2x+y+−y=14+−y

2x=−y+14

Step 2: Divide both sides by 2.

2x

2

=

−y+14

2

x=

−1

2

y+7

it has the same slope and a different y-intercept

hope this : )

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