Answer:
15 ft
Step-by-step explanation:
Hi, the illustration for the problem is a right triangle with:
hypotenuse (C)= the length of the ladder = L
horizontal side(A) = distance from bottom of the ladder to the building = L - 6
vertical side(B) = distance from the top of the ladder to the bottom of the building = L - 3
So, we can use Pythagoras formula:
A2 +B2= C2
(L – 6 )² + (L-3)² = L²
L²-12L+36+L²-6L+9 =L²
L2 -18L+45 =0
APPLYING QUADRATIC FORMULA WE OBTAIN:
L =15 OR L=3
If L=3
Vertical side = L-3 = 0 (Length can´t be 0)
So L=15
Answer:
Triangle
Step-by-step explanation:
all of them have parallel sides except triangle
Answer:
a
Step-by-step explanation:
Answer:
so first you could combine common factors which are x2 and 6x. Subtract them and you get 4x. So your final answer would be 4x - 72 because you cant simplify anymore. 4x and 72 arent like terms so your final answer is 4x - 72.
Step-by-step explanation:
2x - 6x- 72
2x - 6x = 4x
4x - 72
Answer:
495 cm^2
Step-by-step explanation:
basically find the area of each shape,
rectangles: base x height
triangles: (base x height)/2
then add all the areas together
