Answer:
its A!
Step-by-step explanation:
KE=0.5xmxv2
=0.5x 1.2x10^3x (3.4x10^3)^2=6936000000
Answer:
$22.5
Step-by-step explanation:
25% of $90
25% x 90
0.25 x 90
$22.5
Answer:
<h3>1/8</h3>
Step-by-step explanation:
Given the expression

Using the following laws of indices;

The expression becomes;
Step 1: Multiplication rule

Using the division rule of exponent (Quotient of powers);

Hence the result of the expression is 1/8
Answer:
The Video recorders are inferior goods.
Step-by-step explanation:
As 
where;
The price of the recorders films are increasing by a term 1.07 which gives that the Price is increasing by a little. Also adding the Price of video recorder is increasing by a factor 2.1 and the Revenue or income is increasing by a term 5 (Which is high) so, revenue and price are increasing leaving the quality of the voice recorder decreasing by a large margin for maintaining the balance.
As

So, in conclusion the quality decreases and thus the video recorders are inferior goods.