:) ned currently has an account balance of $3,634.51. he opened the account 13 years ago with a deposit of $2,564.65. if the interest compounds twice a year, what is the interest rate on the account? a. 4.7% b. 5.4% c. 2.7% d. 1.4% leroy opened a savings account 18 years ago with a deposit of $2,651.43. the account has an interest rate of 2.8% compounded twice a year. how much interest has leroy earned? a. $4,373.68 b. $2,725.67 c. $4,358.69 d. $1,722.25

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.

Find the value of x in the diagram below. select the best answer from the choices provided

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.