Answer:
Step-by-step explanation:
To factor this, you must first take out the GCF (Greatest Common Factor), that 
and -147 both have. The terms only have 3 in common, which can be divided with
However, we're still not done since 49 is a perfect square and 
can be split into 2, like so:
If you're unsure about the final answer, you can multiply it all together to see if you got the original expression.
Recall that the slope or gradient of a line segment through two points is the ratio of the change in the <em>y</em> coordinate to the change in the <em>x</em> coordinate.
If the gradient is 1, then
1 = (-3 - 4) / (<em>a</em> - 3<em>a</em>)
Solve for <em>a</em> :
1 = -7 / (-2<em>a</em>)
1 = 7/(2<em>a</em>)
2<em>a</em> = 7
<em>a</em> = 7/2
Sample space َََ َ َ َ َ َ َ َ َ َ
Answer:
60
Step-by-step explanation:
DEF=180
DE=120
180-120=60
i hope this helps
Answer:
-9
Step-by-step explanation:
