Answer:
The medium is what the ray is traveling through.
Explanation:
"Medium" is just another word for the space surrounding the ray. For example, if a ray of light is traveling through water, water would be the medium the light ray is traveling through.
Weigh the negatives and positives and think if it's worth it or not
Answer:
Explanation:
Let the highest and lowest score be a and b respectively .
a - b = 10
a = 10 + b
The numbers in descending order are a , 98 , 98 , b .
mean = 100 , so
4 x 100 = a + 98 + 98 + b = 10 + b + 98 + 98 + b = 206 + 2b
400 = 206 + 2b
2b = 194
b = 97
a = 107
So the scores were as follows
107 , 98 , 98 , 97
The continent located 40n and 100w is North America
