Answer:
x = 15
Step-by-step explanation:
84 = 5x + 9
Subtract 9
75 = 5x
Divide by 5
x = 15
Answer:
72
Step-by-step explanation:
because if you add 18, 4 times or 18 x 4 it will give your 72
hope this helps
Answer:
sqrt(464)
Step-by-step explanation:
|| 4v|| = || 4* (2i - 5j) ||
=|| 8i -20j||
We need to find the magnitude
|| 4v|| = sqrt( 8^2 + (-20)^2))
= sqrt(64+ 400)
= sqrt(464)
Answer:
the ladder reaches 8 feet up
Step-by-step explanation:
:D