Which of the following choices is the explicit formula for the following geometric sequence?
-0.1,0.04,-0.016, 0.0064,-0.00256, ...
A. a, n= 0.1(-0.4)n-1
B. an = 0.1(0.4)"
C. an= -0.1(0.4)n-1
D. an = 0.4(-0.4)n-1
E. an = -0.1(-0.4) 1

i have no clue at all sorry

step-by-step explanation:

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b