for problem 6, you will want to subtract both sides by 5.
n^2 + 7n + 10 = 0
then factor:
(n + 5) (n + 2) = 0
n+ 5 = 0, n +2 = 0
n = -5, n = -2
----------------------------
for problem 7, add - 12 and - 6 together
n^2 + 3n - 18
<em>(you can put </em>= 0 <em>next to the equation since that can make it easier to solve, I guess)</em>
n^2 + 3n - 18 = 0
then factor:
(n + 6) (n - 3) = 0
n + 6 = 0, n - 3 = 0
n = -6, n = 3
Answer:
B) the u.s., china, japan
Step-by-step explanation:
With economy of around $17.4 trillion, United States holds a 22.53 percent share of global GDP in nominal terms. GDP of United states is $7039 billion more than second ranked China.
-1 is the y-intercept ; slope is 2/3
Answer: b and d
Step-by-step explanation:
Since the roots are x=2 and x=6, we can write the equation as
Substituting in the coordinates of the vertex,
So, the equation is 
.
On expanding, we get 
4 x 6 = 24.
Double the dimensions.
8 x 12 = 96
If the dimensions were to double, the area would quadruple.
