Answer: V = 1,436.03 cubic meters
Step-by-step explanation:
V = (4/3)(3.14)(r^3)
V = (4/3)(3.14)(7^3)
V = (4/3)(3.14)(343)
V = 1,436.03
2 because there are 4 quarts in a gallon
To solve problems like this you can either graph or solve mathematically. To do the ladder we need to solve for one variable at a time. So lets cancel one variable out.
Multiply equation 1 by 2
This will give 4x-2y=14
Now we can get rid of y by subtracting 2 from 1
This will give x=9
Plug back in to either equation, i will use equation 2
3(9)-2y=5 simplify
-2y=-22 solve
Y=11
Recall that the reciprocal of the csc function is the sin function, which is an odd function. The angle -pi/6 has its terminal side in Quadrant 4, for which the opposite side is negative, important in determining the sign of csc(-pi/6).
sin(-pi/6) = - sin(pi/6) = -1/2.
Thus, csc(-pi/6) = -1 / (-1/2), or +2 (answer)
