Answer: B 3/10
When you add all the coins together, you get a sum of 90. To find the probability of the copper coin, you get 27/90. once simplified you get the answer 3/10.
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STEP BY STEP: a+b(x)=6
Parallel lines have the same slope.
We have the general form of line. Transform to the slope-intercept form:
m - slope, b - y-intercept
<em>subtract 2x from both sides</em>
<em>add 10 to both sides</em>
<em>divide both sides by 7</em>
Therefore we have: 
.
The line passes through the point (2, 2). Substitute the coordinates of the point to the equation of a line:
<em>add 
to both sides</em>
<em>multiply both sides by 7</em>
<em>subtract 7y from both sides</em>
<em>change the signs</em>
<h3>Answer:</h3>
slope-intercept form
general form
Answer:
X^2 +Y^2 - 2X-4Y= 0
Step-by-step explanation:
From the circle eqn.
(x-a) ^2 +(y-b) ^2 =r^2
a=1, b= 2. r= 3
(x-1)^2 +(y-2)^2 =3^2
(x-1)(x-1)+(y-2)(y-2)=3^2
X^2 - 2x+1+y^2 -4y+4=9
X^2 +Y^2 - 2x-4y+5=9
X^2 +Y^2 - 2x-4y-4=0
33/3030x4/3030=132/9180900
9180900-132=9180768
9,180,768 selections will contain no defective calculators. Hope this helps.
