Answer:
Step-by-step explanation:
2x+5= -25 .........(1)
and -3m-6= 40........(2)
Considering (1): 2x+5= -25
2x = -25 - 5
2x = -30
x = -30/2
x = -15
Considering (2): -3m-6= 40
-3m = 40 + 6
-3m = 46
m = -46/3
Product of x and m = (-15) × (-46/3)
= -5 × -46
= 230
Answer:
np > 10, and n(1 – p) > 10.
Step-by-step explanation:
The normal approximation is used when np>10 and n(1-p)>10.
Here, sample size=n=100 and p=0.42.
So,
np=100*0.42=42>10
n(1-p)=100(1-0.42)=100*0.58=58 >10
As, np>10 and n(1-p)>10 so, the normal distribution can be use to approximate the probability that more than 38 of the sampled people had their most recent eye examination in the previous year.
The triangles are proportionate to each other because they have the same angles. Multiply 66 by 3. 198 is the answer.
After 7 years the price should be 11000.
Hope this helps
The correct answer should be C.
