So use pythagorean theorem
a^2+b^2=c^2
a=base
b=height
c=legnth of ladder
a=2
b=c-0.5
subsitute
2^2+(c-0.5)^2=c^2
4+c^2-c+0.25=c^2
add like terms
c^2-c+4.25=c^2
subtract c^2 from both sides
-c+4.25=0
add c to both sides
4.25=c
the legnth of the ladder is 4.25 m
Answer:
the answer is d
Step-by-step explanation:
What does N equal? N equals -5
4 / (1/4 - 5/2)
4 / (1/4 -10/4)
4 / (-9/4)
4 x (-4/9) = -16/9
You can set up a ratio problem
take what you know and set it equal to what you don't know
4/6 = r/15
Cross multiply and get:
60 = 6r
divide by 6
r = 10
