Answer:
17
Step-by-step explanation:
c = a^2 + b^2 = 15^2 + 8^2 = 17
Answer:
Perpendicular.
Step-by-step explanation:
4x - 7y = 9 ---> 7y = 4x - 9 ---> y = 4/7 x - 9/7, slope= 4/7
7x + 4y = 5 ---> 4y = - 7x + 5 ---> y = - 7/4 x + 5/4, slope = - 7/4
lopes are negative-reciprocal , so these lines are perpendicular.
Answer:
c
Step-by-step explanation:
Look at (3,1) (5,9) (4,5)
90 feet/5 minutes = 18 feet per minute
