The sides of a triangle are represented by the expressions, (2x +3), (x - 1), and (-5 + 3x). What is the simplified expression that represented the perimeter of the triangle.

6x-3

Step-by-step explanation:

the perimeter of triangle =

(2x +3)+ (x - 1)+ (-5 + 3x) =

2x +3+x - 1 -5 + 3x =

6x -3

answer: it's upside down and i can't read it

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west