Tan (x) = -8.9. What is cot (90° - x)?

cot(90° - x) = -8.9

Step-by-step explanation:

recall that one of the co-function identities is

tan θ = cot (90° - θ)

if this is the case, then

cot(90° - x) = tan x, which is given as -8.9

hence,  cot(90° - x) = -8.9

step-by-step explanation:

goog be able to you with that maybe

(a) {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …}

(b) $59 398

step-by-step explanation:

(a) the annual sequence of profits

aₙ = a₁rⁿ⁻¹

the model for the sequence of profits is {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …} .

(b) profit after 15 yr

  a₁ = $ 30 000

  r = 1.05

a₁₅ = 30 000 × 1.05¹⁴

a₁₅ = 30 000 × 1.979 93

a₁₅ = $59 398

the profit in year 15 will be $59 398.