Answer:
its D if not im so sorry i found the answer on a website
Step-by-step explanation:
The formula for the area of a sector in radians is

, where theta is the angle in radians. For us, the formula looks like this:

. Doing all the multiplication on that gives us

. Multiplying in pi and rounding to the nearest tenth gives us an area of 76.3 meters squared. You can use the formula for the area of a sector with the angle in degrees as well. Just replace the 360 degrees with 2pi and it works the exact same way.
Swap x and y's positions
f(x) is another way of saying y, so basically tha initial function is y = 1-2x^3.
Change it up to x = 1-2y^3 and solve for y
X - 1 = - 2y^3
(X - 1)/-2 = y^3
So the cube root of ((x-1)/2) = y
Answer:
the answer it $5.18
Step-by-step explanation:
$4.50 + ($4.50 x .15)
$4.50 + $0.68 = $5.18