It form a right triangle
legnth of ladder is hypotonuse
bottom of ladder from wall distance is one leg
distance up wall is other leg
a^2+b^2=c^2
c=hypotonuse and a and b are legs
4^2+b^2=20^2
16+b^2=400
minus 16 both sides
b^2=384
sqrt both sides
b=8√6 ft
aprox
b=19.59ft from ground
X=15
expand the brackets and collect like terms so 6x+15=7x
then -6x to get x=15
Because you can just simplify to have 1-2 terms only. Eg:
13+2y+4y (this is a trinomial as it has 3 terms) can be simplified to just give 13+6y
Answer:
The answer is
B.
Step-by-step explanation:
just multiply 4.5 by 8 and you get 36
The overall temperature would be 3.6°F as this is how much it was changed by
Answer=3.6°F
