10
QuizMultiple Choice

Summation Notation — Quiz

Question 10 • Precalculus

Becky is offered the two deals. Deal 1 : She will get a quarter on the first day of the week. Each day thereafter for one week, she will receive double what she received on the previous day. Deal 2 : She will get 4 dollars each day for 1 week. Which statement is true in every aspect regarding these two deals?

Answer
A
She should go with deal 1 because the sum from n is equal to 0 to 6 of 0 point 2 5 is greater than the sum from n is equal to 1 to 7 of 4 by 3 point 7 5 dollars .
B
She should go with deal 2 because the sum from n is equal to 1 to 7 of 4 is greater than the sum from n is equal to 1 to 7 of 0 point 2 5 by 48 point 5 0 dollars .
C
She should go with deal 2 because the sum from n is equal to 1 to 7 of 4 is greater than the sum from n is equal to 1 to 7 of 2 by 27 point 3 3 dollars .
D
She should go with deal 1 because the sum from n is equal to 1 to 7 of 0 point 2 5 is greater than the sum from n is equal to 1 to 7 of 4 by 35 point 5 0 dollars .