Answer:
the 3rd one
Step-by-step explanation:
We have that
<span>y = –x + 8
and
4x + 4y = 12
we know that
if two lines are perpendicular
so
m1*m2=-1
step 1
find the slope of the lines
</span>y = –x + 8 -------> m1=-1
4x + 4y = 12-----> x+y=3 (divided by 4 all expression)
y=3-x
m2=-1
therefore
m1=m2
the lines are parallel
the answer is<span>
No; their slopes are not opposite reciprocals.
</span>
see the attached figure
Answer:
-45/7
Step-by-step explanation:
1. make -7 into fraction form. -7/1
2. find a common denominator. there isn't one, so just use 7. multiply -7/1 x 7/7.
3. you should get -49/7. add 4/7 to it and you get -45/7
The answer should be <u>38.99</u>