Line 1 = 0
Line 2 = undefined
Explanation:
Line 1 = rise/run = 0
Line 2 = rise/run = 0/0 = undefined
Answer: option A and D results in 3 significant figures.
Step-by-step explanation:
A. 
The number 17.6 has three significant figures.
B. 
The number 119.25 has 5 significant figures
C. 
The number of 19.83 has 4 significant figures.
D. 
The number of 25.5 has 3 significant figures.
Hence, option A and D results in 3 significant figures.
Answer:
4r + 15 = -1
Step-by-step explanation:
20 -- 55
1/8 -- x
(1/8)*55/20=55/160≈0.34 feet
210=2*3*5*7
none of them
if you meant 2¹⁰ then the answer is A because 2¹⁰=2*2*2*2*2*2*2*2*2*2=(2⁶)(2⁴)
A