(password counting) each of the following cases contain rules for setting a password. analyze the number of valid password combinations for each case : (a) passwords of lengths 6 to 8 characters long, where each character is either a lower case letter (a-z) or a digit (0-9) (b) passwords of lengths 6 to 8 characters long containing at least 1 digit, where each character is either a lower case letter (a-z) or a digit (0-9).
(c) passwords of length 8 which contain at least one vowel in them, where each character is a lower case letter. (d) passwords of length 8 which contain only digits (0-9), but no digit can be repeated.

rounding to the nearest thousandth would be 452,000

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

positive

step-by-step explanation:

the quadrant is facing upwards

care to share were the trapezoid shown is ?