You read 50 pages in an hour. your sister reads 40 pages in an hour. explain how to find out how many more pages you read than your sister reads in 1/2 hour?
a. i know that 50 • 40 = 2,000, so i read 1,000 more pages than my sister reads in 1/2 hour.
b. i know that 50 ÷ 40 = 5454, 5 ÷ 4 = 1 1/4, so i read 1 1/4 more pages than my sister reads in 1/2 hour.
c. because i read 10 more pages than my sister reads in 1 hour, i read 5 more pages in 1/2 hour.
d. since 5 • 4 = 20, i read 20 more pages than my sister reads in 1/2 one half hour.

Candice uses the function f(t)=t+100−−−−−−√ to model the number of students in her after-school program. the variable t represents days and f(t) represents the number of students. how many days does it take for there to be 15 students in her program? a. 225 days b. 125 days c. 325 days d. 115 days

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.

Find the degree 3 taylor polynomial p3(x) of function f(x)=(-3x+15)^(3/2) at a=2