Simplify negative 7 and 1 over 8 − negative 9 and 1 over 2.

The answer is 2 and 3/8.

To find this we need to look at the entire equation.

-7 1/8 - -9 1/2

When we have two negatives like this, we need to turn it into an addition sign.

-7 1/8 + 9 1/2

Now we need to give them common denominators

-7 1/8 + 9 4/8

Now we can simply add the two parts

2 3/8

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

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°