Each of the following functions f is continuous on the given set d. determine whether f is uniformly continuous on d. justify your answer by providing a brief explanation (just a sentence or two, no formal proofs).
#7(a) f(x)= 4^x/x^4 d = [1/9, 9]
#7(b) f(x)= 4^x/x^4 d = (0, 9]
#7 (c) f(x)= (x^2 + 5x) /2x + 10 d = (−5 , 5)
#7 (d) f(x)= x sin(3/x^3 ) d = (0, 1)

eve and marks ratios are equivalent

step-by-step explanation:

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°

answer: 5

step-by-step explanation:

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.