For a right triangle with legs legnth a and b and hyptonuse c
a^2+b^2=c^2
9 feet from base, that's one leg
wire is hypotnuse, it's 1 more than height on tree
c=b+1
so
9^2+b^2=(b+1)^2
81+b^2=b^2+2b+1
minus b^2+1 from both sides
80=2b
divide both sides by 2
40=b
c=b+1
c=40+1
c=41
legnth of wire is 41ft
Ok so the answer should be answer choice D.
Work: by combining all the like terms, the sum would be Answer choice D.
Hope this helps!
Answer:
-4r
Step-by-step explanation:
r + -5r
Factor out r
r( 1-5)
r(-4)
-4r
Answer:
Step-by-step explanation:
Simplify to the answer.
Hope this helped!
Answer:
i think its A tell me if i am wrong
Step-by-step explanation:
