State whether each of the following is in scientific notation. If not, write it in scientific notation. (5.23) x 10^8

48,200

0.00099

36 x 10^5

(8.7) x 10^-12

(0.78) x 10^-3

answer: 414,377,008

step-by-step explanation:

just multiply it

111

step-by-step explanation:

(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.

my dear correct answer is option number 3