From my research the answer for this question is 5
<span>a=first term
r=common ratio
n=the term
a(5)=5*3(5-1)
a(5)=5*81
a(5)=405
The answer is B)</span>
Answer:
She consumes 30 blue ray disk and 60 DVD respectively.
Step-by-step explanation:
Consider the provided information.

Calculate marginal utility of good
Differentiate with respect of x and y.


Her consumption of Blu-ray disks (X) with a price of $40 and Y is her consumption of DVDs with a price of $10.
The ratio of marginal utility of good x to y is equal to the price ratio:

Substitute the respective values.




She has $1800 with which to spend on the two goods.
Her consumption of Blu-ray disks (X) with a price of $40 and Y is her consumption of DVDs with a price of $10. She has $1800 with which to spend on the two goods.
Therefore, 

Substitute the value of y in above equation.



Thus, 
She consumes 30 blue ray disk and 60 DVD respectively.
Answer:
The solution is (-2,-11)
Step-by-step explanation:
The given system is

and

Make y the subject in the first equation to get;

Put
into the second equation.

Group similar terms;


Put
into
.
This implies that;



The solution is (-2,-11)
9514 1404 393
Answer:
- 5 feet
- 22.4%
- 22 m
Step-by-step explanation:
1. The product of force and distance must be the same for each force. If the distance from the greater force is d, then it is 14-d for the lesser force.
135d = 75(14-d)
210d = 1050
d = 1050/210 = 5
The fulcrum must be placed 5 feet from the greater force.
__
2. The percentage change is ...
(772.80/996 -1) × 100% ≈ -22.4%
The TV was marked down about 22.4%.
__
3. The product of the two dimensions must be 220 m². We note that 10 and 22 are factors of 220, and that 22 is 2 more than double 10.
The sides are 22 meters long. (The width is 10 m.)