12w+15r=18.30 /*2
15w+10r=16.75 /*3
24w+30r=36.60, subtract this equation from the other one
45w+30r=50.25
21w=13.65
w=13.65/21
w=0.65 is a cost per pound for wheat flour
From the first equation we have
r=(18.30-12w)/15
r=(18.30-12*0.65)/15
r=0.70 is a cost per pound for rye flour
Okay, So What We Need To Do Is Make A Fraction. 1/4 Is The Fraction. So, Now We Must Multiply It.
1/4*1/4*1/4.
1/4*1/4 = 1/16.
1/16*1/4 = 1/64.
That Means That It Is A 1/64 Chance That It Will Always Be A One Three Times In A Row.
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➷ cos38 = 79/x
x = 79/cos38
x = 100.2524
The correct option would be 100.25
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N/D =(x²+4x+4)/(x² - 4)
N= x²+4x+4 = (x+2)²
D = x²-4 =(x-2)(x+2)
N/D = (x+2)²/(x-2)(x+2); simplify by (x+2)
N/D = (x+2)/(x-2)
Domain of x ={x∈R≠3} ; in short x =( -2) should be excluded
Sure, what is the question.