Answer:
lightning fatalities more frequent today than as they were in the 1950s .
Explanation:
The frequency of lightning has significantly increased after the 1950s . This is because of global warming or the global rise in the temperature . As the temperature is increasing the chances for the formation of a thunderstorm is also increasing . That's why the more the thunderstorm, the more will be the lightening and the more will be the death fatalities.
According to the date, there is a 50% increase in the lightening in the last 30 years.
Answer: If the sin 30° = 0.5, then the cos 60° = 0.5 (same as 1/2)
Answer:
8 cm and 9 cm
Explanation:
To estimate the sides of triangle we must understand that any side of a triangle is greater than the differences between any two sides and also less than the sum of the two sides.
In this problem;
One of the sides is 13cm;
According to our theorem, this sides is less than the sum of the other two sides and greater than difference between the two sides.
8 cm and 9 cm is the correct choice;
if the other two sides are 8cm and 9cm;
9cm - 8cm = 1cm
9cm + 8cm = 17cm
13cm is in between them.
