Number 10:
All angles in a triangle =180 degrees
so add the first to and subtract that by 180
166 degrees
180-166=14
so x=14 degrees
Im not sure wym but i think the answer is 20
A = kdv^2 where A = amount oil d = distance and v = speed and k is a constant
so
30 = k*85*42^2
Now solve for k:-
k = 30 / (85*42^2) = 0.00020008
So when d = 26 and v = 54
Amount of oil A = 0.00020008 * 26*54^2
= 15.2 barrels
Answer:

Step-by-step explanation:
Given a box with a square base and an open top which must have a volume of 237276 cubic centimetre. We want to find a formula for the surface area of the box in terms of only x, the length of one side of the square base.
Let the side length of the base =x
Let the height of the box =h
Since the box has a square base
Volume,

Surface Area of the box = Base Area + Area of 4 sides

Substitute h derived above into A(x,h)

Therefore, a formula for the surface area of the box in terms of only x, the length of one side of the square base is:
