The surface, or rim, of a canyon is at altitude 0. On a hike down into the canyon, a party of
hikers stops for a rest 138 m below the rim.
They then descend another 56 m. What is
their new altitude?
138 m
56 m

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

sorry man i accidentally pressed yes my bad

step-by-step explanation:

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation: