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Posts by veronique

Total # Posts: 6

In how many ways can 8 new teachers be assigned to 14 classes at a school, if each must be in a different class?

If the universal set is {a, b, c, d, e}, A = {a, d} and B = {b, e, d}. Find the following sets: A∩B^c

The balanced reaction equation for the combustion of heptane, C7H16, is given below. If the reaction produced 37.5 g CO2, how many grams of heptane were burned?

Automotive air bags inflate when sodium azide, NaN3, rapidly decomposes to its component elements: 2NaN3(s)→2Na(s)+3N2(g) a)How many moles of N2 are produced by the decomposition of 1.60mol of NaN3? b)How many grams of NaN3 are required to form 14.0g of nitrogen gas? c)...

Which changes temperature more rapidly, land or water?

I am a prime number between 40 and 50. If you add one to me, the sum of the prime factors of that composite number is 11. What number am I?

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