What are the explicit equation and domain for a geometric sequence with a first term of 5 and a second term of −10?

The standard form of a geometric sequence is . We are told that the first number in the sequence is 5 and the second number is -10. Geometric sequences rely on that r to be a common ratio which is a muliplier. So to get from 5 to -10 we have to multiply by -2. That means that r = -2. Our formula then is and any value could be subbed in for n to find that specific number in the sequence. A geometric sequence may be thought of as an exponential function whose domain is the set of natural numbers.

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %