Answer:
n = -2
Step-by-step explanation:
4n + 12 = 4
Subtract 12 from both sides.
4n = -8
Divide both sides by 4.
n = -2
Answer:
a) 2.5% b) 84% c) 95% d) D. The more unusual day is if the stock closed below $185 because it has the largest absolute z-score.
Step-by-step explanation:
For a) b) and c) we will use the empirical rule, so, we can observe the image shown below
a) 211.23 is exactly two standard deviation above the mean, so, the probability that on a randomly selected day in this period the stock price closed above 211.23 is 2.35% + 0.15% = 2.5%
b) 204.11 represents exactly one standard deviation above the mean, so, the probability of being below 204.11 is 50% + 34% = 84%
c) The probability of getting a value between 182.75 and 211.23 is 95%, this because 182.75 is exactly two standard deviations below the mean and 211.23 is exactly two standard deviations above the mean.
d) The z-score related to 208 is
= (208-196.99)/7.12 = 1.5 and the z-score related to 185 is
= (185-196.99)/7.12 = -1.7, therefore, the more unusual day is if the stock closed below $185 because it has the largest absolute z-score.
Answer:
a)
2(x+1) +3 (x+2)
2x +2 + 3x +6
5x + 8
b)
4(x+3) +2(x +7)
4x+12 + 2x +14
6x+26
c)
5(x+3) +2(x+7)
5x+15 +2x+14
7x +29
d)
8(x+10) +2(x+4)
8x+80 +2x+8
10x+88
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
If m was 1, then it would be
4 +8 = 36, which is not true.
If m was 7, then it would be
28 + 8 = 36, which is true.
If m was 11, then it would be
44 + 8 = 36, which is not true.
If m was 36, then it would be
144 + 8 = 36, which is not true.
Hope that helps!
Answer:
Had the same question, the answer was d
Step-by-step explanation:
Hope it helps!