9514 1404 393
Answer:
(a) an = -4·2^(n-1)
Step-by-step explanation:
The form for the general term is ...
an = a1·r^(n-1) . . . . . a1 is the first term; r is the common ratio
For a1=-4 and r=-8/-4 = 2, the rule will be ...
an = -4·2^(n-1)
Answer:
55.5
Step-by-step explanation:
find the median - in this case it's 60
then group the upper and lower halves of the data:
(11, 19, 35, 42) 60 (72, 80, 85, 88)
now we find the medians of those sets:
35 + 19/2 = 54/2 =27
80 + 85/2 = 165/2 = 82.5
then subtract those two medians to find the interquartile:
82.5 - 27 = 55.5
Answer:
18/25 = 72%
Step-by-step explanation:
P(B ∪ F) = P(B) + P(F) - P(B ∩ F)
= 12/25 + 11/25 - 5/25
= 18/25
The probability a randomly chosen student plays either sport is 18/25 = 72%.
Answer:don't go by my answer random answer a i just need POINTS SORRY
Step-by-step explanation:
Answer:
see attachment
Step-by-step explanation:
y-int = 4, x-int. = 24
