meters by 5 meters and the 108 cubic meters of added volume, you can figure out what the
added depth is:
That’s on top of the pre-existing 12.5 meters. The new water level is 12.5 + 7.2 = 19.7 meters.
30 . C
The equation for a circle centered at (3,2) and with radius r = 5 is
(x − 3)^2 + (y − 2)^2 = 25
To find where the graph of this equation intersects the x-axis, set y = 0 and solve for x:
31 . E
Between 0 and π, tangent is defined for anything but . Sine is defined for all values of x,
but since the sine is in the denominator here, the expression will be undefined when
sin x = 0 , which is when x = 0 or π. So the expression is defined when
32 . C
Use the given volume = 50 to get h in terms of x: