Answer:
Step-by-step explanation:
The angles forming a straight angle are supplementary.
We have angles APC and DPB forming a straight angle with adjacent angle to both (either angle APD or CPB).
It means the correct choice is D.
Answer:
y=-1/2x+7/2
Step-by-step explanation:
two lines are perpendicular if the product of the slopes is equal to -1
the slope for y=2x+4 is 2
2*x=-1
x=-1/2
the formula for the slope is
(y2-y1)/(x2-x1)=m
we know y1 and x1
(y+5)/(x+3)=-1/2
y+5=x+3/2
2y+10=x+3
2y=x-7
y=-1/2x+7/2
8÷1/2 = 4 because you turn the whole number to a fraction like this 8/1 then you do kfc (keep,flip, change) 8/1×2/1 = 4
The answer will be 45 3/4