Answer:
see explanation
Step-by-step explanation:
note that 3.28 = 2 × 1.64
This could be a geometric sequence with common ratio r = 2
To obtain the next term multiply the previous term by 2
3.28 × 2 = 6.56
6.56 × 2 = 13.12
1.64, 3.28, 6.56, 13.56 ← first 4 terms in sequence
Since the geometric series is not long we can pair up the number
20 + 29 = 49
21 + 28 = 49
22 + 27 = 49
23 + 26 = 49
24 + 25 = 49
Since we made 5 pairs of 49, the answer is 245. (49 x 5)
Answer:
620
Step-by-step explanation:
9.87 is about 10 and 0.509 is about 0.5
(31 * 10) / 0.5 = about 620
Answer: 0.375
I believe this is the answer let me know if i am wrong or if u have anymore questions
Answer:
D
Step-by-step explanation:
BRAINLIEST PLS