Answer:
a. rectangle
Step-by-step explanation:
i just used desmos so i have no idea how to explain it
Answer:
This may not be entirely satisfied proof but you should get the idea.
Proof: Start with 1 = -1.
Then we know that if a= b then a + c = b + c and also a / c = b / c.
So we can add 1 to both sides.
We have 1 + 1 = -1 + 1 ⇒ 2 = 0.
Now divide both sides by 2 and we would have 1 = 0.
Now add both sides by 1. This yields 2 = 1.
Therefore if 1 = -1 then 2 = 1.
QED
Try plugging them in, might seem tedious, but it's the best way to practice. if you plug in a pair and the left side of the equation is less than or equal to 6, it's the right answer.
Answer:
20 ft²
Step-by-step explanation:
the area (A) of a triangle is calculated using the formula
A = 
bh ( b is the base and h the height )
here b = 5 and h = 8
A = × 5 × 8 = 20 ft²
Answer:
angle C and angle D
Step-by-step explanation:
when those two angles are added together, they are to give a total angle of 180°
