Answer:
<h2>
</h2>
Step-by-step explanation:
Steps:
Subtract 4 from both sides:
Simplify:
Divide both sides by 12:
Simplify:
Answer:
Step-by-step explanation:
For this question, you count backwards from 0545hrs which is 5:45 am until 7hrs is reached.
5:45 am Thursday
↓
4:45 am Thursday
↓
3:45 am Thursday
↓
2:45 am Thursday
↓
1:45 am Thursday
↓
12:45 am Thursday
↓
11:45pm Wednesday
↓
10:45 pm Wednesday
Therefore, Madaraka express left Nairobi at 10:45 pm on Wednesday
Answer:
7
Step-by-step explanation:
σ = 4 ; μ =?
8.52 to the left of X
.
P(X < 8.52) = 64.8%
P(X < 8.52) = 0.648
Using the Z relation :
(x - μ) / σ
P(Z < (8.52 - μ) / 4)) = 0.648
The Z value of 0.648 of the lower tail is equal to 0.38 (Z probability calculator)
Z = 8.52 - μ / 4
0.38 = 8.52 - μ / 4
0.38 * 4 = 8.52 - μ
1.52 = 8.52 - μ
μ = 8.52 - 1.52
μ = 7
So it decreases by 11% which means by the next year it's worth 89% of the original price, write 89% like a decimal. then put it to the power of 4 (4 years) and multiply by the original number
.89 ^ 4 * 12250 = 7685.92
