Express the area of a rectangle with length 2c^3d^2 and width 9d^7 as a monomial

The expression of the area as a monomial is 18c^7d^9

Step-by-step explanation:

In algebra, when we talk about the term monomial, we are simply referring to an algebraic expression that contains only a single term.

Now in this question, we have the value of the length and the width but we are interested in turning them to a monomial which is a single term.

Mathematically, the area of rectangle can be calculated using the formula L * W , where l is the length and w is the width.

Thus, we have ;

2c^3d^2 * 9d^7

= 18c^7d^(2+7)

= 18c^7d^9

i think it is c, not positive though

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional