Answer:
The fundamental properties of rectangles are: A rectangle is a quadrilateral The opposite sides are parallel and equal to each other Each interior angle is equal to 90 degrees The sum of all the interior angles is equal to 360 degrees.
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:

Answer:

Step-by-step explanation:
Factor constant terms:

Divide both sides by -2:

Expand trigonometric functions using the fact:

So:

Factor sin(x) and constant terms and multiply both sides by -1:

Split into two equations:

For (1)
Add 1 to both sides and divide both sides by 8:

Take the inverse cosine of both sides:

For (2)
Simply take the inverse sine of both sides

Therefore, the solutions are given by:

A=pR^2-2pr^2, since R=15 and r=7.5
A=225p-112.5p
A=112.5p
A≈353.25 ft^2