Answer: 75
Step-by-step explanation:
when increased in scale,
both sides are multiplied by the factor which is 1.5.
72 =1.5(2L+2W)
Mark me as brainliest
The answer would be 78. C
Answer: C. x-2
Step-by-step explanation:
We have the following expression:

Factoring in the numerator:

Factoring again in the numerator with common factor
:

Simplifying:

Hence, the correct option is C. x-2
Answer:
(b) 1
Step-by-step explanation:
To differentiate
we will need the product rule:
.
We have
, so the following equation is true by the transitive property:

By subtraction property we have:

Since
, then we can divide both sides by
:


This implies
is constant.
So we have that
where
is a real number.
Since
and
, then by transitive property
.
So
.
Checking:


So the following conditions were met.
The equation for the direct variation is y= kx (where k is contant of variation.)
This equation represent that if x will increase then y will also increase because it's k times x.
Where the equation for indirect variation is 
By this equation if x will increase then y will decrease and vice versa.
The given data is :
x: 2 4 8 12
y: 4 2 1 2/3
Notice as x is increasing then y is decreasing. Like x has increased from 2 to 4 then y is decresing from 4 to 2 and so on.
So, the given data represent an indirect variation.