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a set of 10 flags 5 red 3 blue and 2 yellow are to be arranged in a line along a balcony if flags of the same colour
abecause an exact outer boundary cannot be measured or even calculated for an atom how are atomic radii determinedb
a moseleys experiments on x-rays emitted from atoms led to the concept of atomic numbers where exactly do these x-rays
a school had a very unusual tradition involving its 1000 students and its 1000 lockers on opening day after the head of
the prefix ekacomes from the sanskrit word for one mendeleev used this prefix to indicate that the unknown element was
for each new employee a company gives a five-digit identification card each digit can be 0 1 2 or 3 if repetitions are
the coach of the morton valley softball team has 6 good hitters and 8 poor hitters he chooses 3 hitters at randoma in
if the number of permutations of n objects taken r at a time is six times the number of combinations of n objects taken
an element x reacts with f2g to form the molecular product shown herea write a balanced equation for this reaction do
in a specific sequence to createa1 has the elements x1 and y1a2 has the elements x2 and y2a3 has the elements x3 and
in the chemical process called electron transfer an electron is transferred from one atom or molecule to another a
a concert to raise money for an economics prize is to consist of 5 works 2 overtures 2 sonatas and a piano concertoa in
an anthropologist discovers an isolated tribe who has written an alphabet that contains only six letters call the
make a simple sketch of the shape of the main part of the periodic table as showna ignoring h and he write a single
car license plates in california take the form of 1rty345 if zero cannot be used in the first position and repeats are
1 how many ways are there to choose 5 items with repetition from among 7 varieties explain as precisely as possible why
1 this week we were introduced to new terminology and symbols please interpret the symbol pba and explain what is meant
use the information provided to determine the correct answersu151015202530a11015b1102025c51530a a u bb c b the is
1 in how many ways can a man divide 7 gifts among his 3 children if the eldest is to receive 3 gifts and the others 2
eight people are attending a seminar in a room with eight chairs in the middle of the seminar there is a break and
a place the following gases in order of increasing average molecular speed at 300 k co sf6 h2s cl2 hbrb calculate and
there is a lottery in which 2000 individuals enter and of these a set of 120 names will be randomly selected assume
please show all work for specefic questions for complete understanding1find the following weighted voting system 8
trying to prove the following a set a is called a well ordered set if there is a relation r on a such that r is
1you dream of someday winning the lottery dont we all you found out about a new lottery where the winning numbers are