1. what is the sum of the first eight terms of the series?

(−600)+(−300)+(−150)+(−75)+(−37.5)+

round the answer to two decimal places.

−1200.50

−1195.31

−1190.63

−1181.25

2. what is the sum of the first 7 terms of the series −3+6−12+24− ?


3. what is the sum of the series?

4+12+36+108++8748

8908

10,204

13,120

17,816

4. a florist sold 15 arrangements in its first month of business. the number of arrangements sold doubled each month.

what was the total number of arrangements the florist sold during the first 9 months?

enter your answer in the box.

5. cassidy dropped a ball from a height of 46 yards. after each bounce, the peak height of the ball is half the peak height of the previous height.

how far does the ball travel from the time cassidy drops the ball until it reaches its peak height after the 4th bounce?

120.75 yd

126.5 yd

129.375 yd

132.25 yd

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4

In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.