Answer:
Slope is -2.
Step-by-step explanation:
Slope m = 
Answer:
10 or -10
Step-by-step explanation:
Answer:
10000
Step-by-step explanation:
10 has 1 zero. 1000 has 3 zeros. Put these zeroes together to get 0000. Add one to the left, and you get 10000.
No. 4^2 + 8^2 or 16 + 64 is 80, and the hypotenuse, 12 (144) is not 80.