Answer:
Step-by-step explanation:
so the least common denominator is 12, so:
multiply 3/4ab by three, which equals: 9/12ab
9/12ab-5/12ab = 4/12ab, or 1/3ab
Answer:
Step-by-step explanation:
Given
equation of circle 
Equation of tangent passing through (1,1)
Slope of tangent is given by differentiating equation of circle


at 

Equation of line with slope


This is a standard relationship/systems of equations question. Here is how you attack it. Firstly, set up equations to represent the relationships. Ed = 4*Kim That shows that Ed has four times as many pins as Kim. Next, we see that the two have 25 together. So: Ed + Kim = 25 Now we have our two equations. In order to solve, we need to get one of the equations down to one variable. We can achieve this via substitution. The first equation tells us that we can substitute 4*Kim for Ed (in the second equation). So, let's do just that: 4*Kim + Kim = 255*Kim = 25Kim = 5 Using the first equation again, we can solve for Ed: Ed = 4*KimEd = 4*(5)<span>Ed = 20</span>
Answer:
<em>(a)
(b)
(c)
(d)
</em>
Step-by-step explanation:
For each expression, <u>we need to factor out the GCF(Greatest common factor)</u>
a) 
Here, the GCF is
. So, we will get.....

b) 
Here, the GCF is
. So, we will get......

c) 
Here, the GCF is
. So, we will get.......

d) 
Here, the GCF is
. So, we will get.......
