Answer:
8/21
I don't think that it can be simplified further....
Answer: (4,3)
Step-by-step explanation:
1. In this method you must solve one of the equation for one of the variables and substitute it into the other equation to find the other variable. Then, substitute the value of that variable into one of the original equation to obtain the value of the other one.
2 You have that:

3. Then, you can substitute it into the other equation and solve for x:

4. Now you can obtain y:


5. The answer is:
(4,3)
Answer:
see below
Step-by-step explanation:
9/10
To get as a fraction over 100, multiply the top and bottom by 10
9*10 90
------ = ------------
10*10 100
9/10 = 90/100
The decimal form for 9/10 is .9 and for 90/100 is .90
The distance between two points (x₁,y1),(x₂,y₂) is d

For the given problem we have
<span>W(1,8),X(7,8),Y(4,5), and Z(1,2)
The length of WY = </span>

= 3√2
The length of WX =

= 6
The length of WZ =

= 6
The length of XY = <span><span>

= 3√2
</span>The length of ZY = </span><span>

= 3√2
∴ WX = WZ ⇒⇒⇒ proved
XY = ZY ⇒⇒⇒ proved
WY = WY ⇒⇒⇒ reflexive property
∴ Δ</span><span>WYZ is congruent to ΔWYX by SSS method</span>
Answer:C. competitive firms' profits are zero.
Step-by-step explanation: Perfect competition is the highest level of competition where the number of buyers and sellers are large,all firms are price takers,no government intervention,the products are homogeneous,no firm makes extraordinary profits, there is free entry and exit for buyers and sellers etc.
IN THE LONG RUN A PERFECTLY COMPETITIVE FIRM MAKES ZERO PROFITS.