How many 44-element subsets containing the letter a can be formed from the set {a, b,c, d,e, f,g}{a, b,c, d,e, f,g}?

Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. one day's discharge at its mouth, 5.6 trillion gallons, could supply all of country a's households for seven months. based on this statement, determine how much water an average household uses each month. assume that there are 100 million households in country a. country a uses approximately nothing gallons per household per month.

Aright triangle includes one angle that measures 30º. what is the measure of the third angle? a. 30º b. 90º c. 60º d. 130º

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1