Answer:
20°
Step-by-step explanation:
A triangle = 180°
∴ 180° -120°-40°
=20°
Answer:
the expanded form for (x - 7)² is:
x² - 14x + 49
Answer: y= -8x+3
Step-by-step explanation:
If it's perpendicular the slope is the negative reciprocal, so from 1/8 it would be -8/1, which is just -8. To find b plug in (1,-5) into y=mx+b which is slope intercept form, to get b=3.
Answer:
32 ft
Step-by-step explanation:
The perimeter is basically the area of the outside of a shape. To calculate this, you would add up all the sides together and get the answer.
8 + 8 + 8 + 8=32 or you can just do 8*4 which is also 32
So, the answer is 32