Answer:
The solution of the equation is 
.
Step-by-step explanation:
The previous equations is for the Ohm's Law, which states that current (
), measured in amperes, is directly proportional to the voltage (
), measured in volts:
The complete formula is:
(1)
Where 
is the electric resistance, measured in ohms.
Solving for means that we need to clear within the formula, a process that will be presented step-by-step:
1) 
Given
2) 
Compatibility with multiplication.
3) 
Commutative and associative properties.
4) 
Existence of multiplicative inverse.
5) 
Modulative property.
6) Definition of division/Symmetric property/Result
The solution of the equation is .
You can just add 7+8=15 and 10 + 30 = 40 and add 40 + 15
Answer:
the square root of 25 is 5
Answer:
Step-by-step explanation:
Given that,
The height of the tree, h = 14 ft
The height of the shadow, b = 16 ft
We need to find the angle of elevation of the sun from the ground. Let the angle be θ. We can use trigonometry to find it. So,
So, the required angle of elevation of the sun is equal to 
.
