the mean of a data set is 4.5 and the mean absolute deviation is 0.8. Find the range around the mean that describes the values which fall within the mean absolute deviation.

the answer is d

step-by-step explanation:

y+3=-4(x-2)

y+3=-4x+8

  -3         -3  

y=-4x+5

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°

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

30 feet

step-by-step explanation:

that would be 2 1/2 * 12

= 24 + 6

= 30 feet   (answer)