Answer:
Putting the value in x = 2 , y =4 in 2x - 2y we get,
2 × 2 - 4× 2= 4-8 = -4
Putting the value in z = 3 in z - 5 we get,
z - 5 = 3 - 5 = -2
This is the simplest form
.
<h2>Exponent</h2>
Exponential notation is the form of mathematical shorthand which allows us to write complicated expressions more succinctly. An exponent is a number or letter is called the base. It indicates that the base is to raise to a certain power. X is the base and n is the power.
<h3>Simplification</h3>
Simplification is to make something easier to do or understand and to make something less complicated.
Given
is an expression.
<h3>How to make it simple?</h3>

On simplifying, we have

This is the simplest form
.
More about the exponent link is given below.
brainly.com/question/5497425
D
- Harvard university professor
The formula is
A=p e^rt
A future value?
P present value 2500
E constant
R interest rate 0.05
T time 10 years
A=2,500×e^(0.05×10)
A=4,121.80
You can just google volume of a sphere calculator and plug the radius (3 cm) in :)