Answer:
After 12.2 miles
Step-by-step explanation:
You can check this by graphing y = 0.85+16.75 and y = 0.40 + 22.25 and looking for the solution (the point where they intersect).
You can also use the elimination or substitution method.
Answer:
I believe this is the answer you are looking for:
x3-6x2-7x
Step-by-step explanation:
I think it is negative five
Answer:
The length of the sloping section of the ramp is 20.12 m
Step-by-step explanation:
Given;
the total height of the bank, h = 2.8 m
The slope of the ramp must be 8° to the horizontal, i.e, θ = 8°
Let the length of the sloping section = L
let the horizontal distance between the height of the bank and sloping section = b
Thus, h, L and b forms three sides of a right angled-triangle, with L as the hypotenuse side, h (height of the triangle) as the opposite side and b (base of the triangle) as the adjacent side.
We determine L by applying the following formula;
Sinθ = opposite / hypotenuse
Sin θ = h / L
L = h / Sin θ
L = 2.8 / Sin 8
L = 2.8 / 0.13917
L = 20.12 m
Therefore, the length of the sloping section of the ramp is 20.12 m
