3 1
12. IfA=
and f(x) = x² - 5x+7, find f(A).
, A
-12

if the value of A is -12, then the answer to that is 211

Step-by-step explanation:

f(A)=(-12)^2-5(-12)+7=211

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°

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.