Let's actually find the solution of
<span>2x - 6y = 8
-x + 3y = 10
Let's use the addition/subtraction method. Multiply the 2nd equation by 2, obtaining
</span> 2x - 6y = 8
-2x + 6y = 20
--------------------
0 + 0 = 28
Since this can never be true, the system of linear equations
2x - 6y = 8
-x + 3y = 10
has no solution.
Answer:
We can find the sum of all the coefficients by substituting all the variables in the expansion with one.
a. u=1,v=1
sum==
b.u=1,v=1
sum==1
c.u=1,v=1
sum==-1
d.u=1,v=1
sum==-
e.i=1
sum==
f.i=1
sum==0
g.i=1
sum==
h.i=1
sum==
Subtract 4h on both sides-- 19 = 1 - 9h
then subtract 1 on both sides-- 18 = -9h
divide and h = -2
When we say Wendy's pay depends on the hours she works, that means pay is the dependent quantity and hours are the independent quantity.
The ordered quadruple
(independent; dependent; hours; pay)
is
(hours worked; weekly pay; 30 to 35 hours; $360 to $420)
this corresponds to the 2nd selection
Answer:
Empirical formula
0.34
0.33
0.33
A^c = event B or event C
Step-by-step explanation:
A = roommate A wins the game
P(A) = (Rock A and Scissors B) + (Scissors A and paper B) + (paper A and rock B)
P(A) = (0.36*0.53) + (0.32*0.25) + (0.32*0.22) = 0.3412
C = game ends in a tie :
P(C) = (RockA and rockB) + (ScissorsA and ScissorsB) + (ScissorsA and ScissorsB)
P(C) = (0.36*0.22) + (0.32*0.53) + (0.32*0.25) = 0.3288
P(B) = 1 - P(A) - P(C)
P(B) = 1 - 0.3412 - 0.3288
P(B) = 0.33
Complement of event A =event B or event C