Answer: undefined
Explanation: the squareroot of a negative number does not exist
Answer:
scale factor = 
Step-by-step explanation:
the scale factor is the ratio of corresponding sides, image to original, so
scale factor =
= 
Answer:
Sprinter #1
Step-by-step explanation:
Sprinter #1 is running at 96/12 feet per second: 8 feet per second
Sprinter #2 is running at 475/60 feet per second: approximately 7.9 feet per second
Sprinter #1 covers more distance per second.
Answer:

Step-by-step explanation:
16 = a^2 + b^2
16 - a^2 =b^2
4^2 - a^2 = b^2

