0.14 * 55,000= 7,700
7,700 acres of the forest was destroyed
55,000-7,700=47,300
47,300 acres of the forest was not destroyed
The answer is 55° because 75° + 50° = 125°, 180°-125°= 55°
Answer:

<u>D</u><u>.</u><u> </u><u>no</u><u> </u><u>solution</u>
Answer: D) 2
Step-by-step explanation:
The standard deviation of the difference between the means of the two populations is given by:-

where
= sample size of population 1
= sample size of population 2
= variance of population 1
= variance of population 2
As per given,

Hence, the correct option is D) 2.