Consider the following two statements and choose the correct answer. (i) If f(x)f(x) is continuous at x=ax=a, then f(x)f(x) is differentiable at x=ax=a.

(ii) For every fixed constant cc, the (natural) domain of f(x)=3x+ln(x−c)f(x)=3x+ln⁡(x−c) is [c,∞)[c,∞).

d

step-by-step explanation:

addition

step-by-step explanation:

80 the answer is 80

step-by-step explanation:

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet