Which statement about √x-5-√x=5 is true?
A) x = –3 is a true solution.
B) x = –3 is an extraneous solution.
C) x = 9 is a true solution.
D) x = 9 is an extraneous solution.

D) x = 9 is an extraneous solution.

Step-by-step explanation:

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step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right

(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.