Answer:
To evaluate an algebraic expression means to find the value of the expression when the variable is replaced by a given number. To evaluate an expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations.
Step-by-step explanation:
hope this helps
Answer with Step-by-step explanation:
Let the volume be represented by 'V'
Since it is given that Volume varies with height 'h' and square of the girth 'g' we can write
where 'k' is a constant of proportionality
Now it is given that volume is 288 cubic meters for h= 40 meters and g =1.5 meters we can write

Thus the volume of the timber as a relation is

Part b)
Volume of 50 trees with height 75 meters and girth 2 meters is

Answer:
180 sq ft
Step-by-step explanation:
12 x 15 = 180
Answer:
(2x - 2) (4x +4)
= 2x*4x + 2x*4 - 2*4x - 2*4
= 8x^2 + 8x - 8x - 8
= 8x^2 - 8
Your answer is correct. Great.