Multiply
-9w(-3w^8)
Simplify

3^2w^9

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 0 -  (9w • (0 -  3w8))

Step  2  :

Multiplying exponential expressions :

2.1    w1 multiplied by w8 = w(1 + 8) = w9

Multiplying exponents :

2.2    32  multiplied by  31   = 3(2 + 1) = 33

Equation at the end of step  2  :

 0 -   -33w9

Step  3  :

Final result :

 33w9

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°