Answer:
heat the air
Step-by-step explanation:
Lightning is just a high-intensity amount of electricity. Picture zapping something with electricity: it doesn't get cold, it gets hot.
That's because when a current is passed through something, it has more energy, so the molecules start to vibrate faster and move around much faster than they were before, which causes friction and a buildup of heat.
An equation is a mathematical statement that two things are equal. It consists of two expressions, one on each side of an 'equals' sign.
Answer:
Step-by-step explanation:
1. Subtract 9 from both sides of the equation:
2. Notice that the coefficient of "x" is 7. Then:
3. Add 
to both sides of the equation:
4. Completing the square, you get:
5. To find the solutions, you must square-root both sides of the equation, simplify, and solve for "x". Then, you get:
Answer:
c) 60°
Step-by-step explanation:
We solve this question using trigonometric function of Cosine.
cos θ = Adjacent/Hypotenuse
θ = ???
Adjacent = Base of the ladder is on the ground = 2.5 feet
Hypotenuse = Length of the ladder = 5 feet
cos θ = 2.5/5
θ = arc cos (2.5/5)
θ = 60°
Therefore, the measure of the angle created by the ladder and the ground is 60°
22.86 metres
The two goal lines are 4.0 metres (13.1) from the end boards, and the blue lines are 22.86 metres (75.0 ft) from the end boards
