The GCF we factor out is 4a
8ab = 4a*2b
16ac = 4a*4c
12a = 4a*3
Each term has been factored so that 4a is a factor
Using those factorizations, we can use the distributive property in reverse
8ab - 16ac + 12a = 4a*2b - 4a*4c + 4a*3
8ab - 16ac + 12a = 4a*(2b - 4c + 3)
Answer is choice A<span />
The answer is 20 since 1/5 of 20 is 4, and 20 + 4 = 24.
Answer:
a) 
, 
, b) , , c) 
, 
.
Step-by-step explanation:
The equation of the circle is:
After some algebraic and trigonometric handling:
Where:
Finally,
a) , .
b) , .
c) 
, 
Where:
The solution is 
The parametric equations are:
Let x = the amount that Seini earned
Then x + 25 = the amount that Gavin
The amount Gavin earned would also = 425 - x (your directions asked you to have 2 equations.)
Together they earned 425:
x + (x + 25) = 425
2x + 25 = 425
2x = 400
Now divide both sides by 2 to find x.
Use all of this data to satisfy the directions.
