Mathematics, 28.01.2020 00:31, blessing03
Hannah and heather are sisters. hannah's age is four less than twice heather's age. the sum of their ages is 30. which system of equations can be used to determine hannah's age, x, and heather's age, y?
a.
x + 30 = y
x = 2 - 4y
b.
x + y = 30
x - 2y = 4
c.
x + y = 30
x = 2y - 4
d.
x + y = 4
y = 30 - 2x
Answers: 2
Mathematics, 22.06.2019 01:40, christinavelez26
Suppose we have a set of small wooden blocks showing the 26 letters of the english alphabet, one letter per block. (think of scrabble tiles.) our set includes 10 copies of each letter. we place them into a bag and draw out one block at a time. (a) if we line up the letters on a rack as we draw them, how different ways coukl we fill a rack of 5 letters? (b) now suppose we just toss our chosen blocks into a pile, and whenever we draw a letter we already have, we put it back in the bag and draw again. how many different piles of 5 blocks could result? possible? piles will contain at least one repeated letter? (c) if we draw out 5 blocks wit hout looking at them, how many different piles are (d) if we draw out 5 blocks without looking at them, how many of the possible 2. (4) consider the following formula. 12 give two different proofs, one using the factorial formulas and the other combina torial.
Answers: 3
Mathematics, 22.06.2019 06:00, myparentsrock17
Sarah is collecting recyclables for a science project. on the first day she collected 35 recyclable objects. on the second day she had a total of 52 recyclables. on the third day she had a total of 69 recyclables. determine if the scenario describes an arithmetic or a geometric sequence. then, write the recursive formula for the sequence described.
Answers: 1
Mathematics, 22.06.2019 06:10, basketking333
The amount charged by colleges and vocational schools for courses is referred to as tuition fee interest none of the above asap
Answers: 2
Hannah and heather are sisters. hannah's age is four less than twice heather's age. the sum of their...
Chemistry, 03.11.2020 06:50
Physics, 03.11.2020 06:50
Mathematics, 03.11.2020 06:50
History, 03.11.2020 06:50
Arts, 03.11.2020 06:50
Mathematics, 03.11.2020 06:50
Social Studies, 03.11.2020 06:50