A because my test said so
(x + 6)² (x - 3)²
(x + 6)(x + 6) (x - 3)(x - 3)
x² + 6x + 6x + 36 x² - 3x - 3x + 9
x² + 12x + 36 x² - 6x + 9
16x² + 10x
Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out
Answer:
90π yd²
Step-by-step explanation:
the surface area of a cylinder is the sum of the lateral area and twice the aera of one end of the cylinder: π·d·l, where l represents the length of the cylinder. Here, the lateral surface area is π·6 yd·12 yd, or 72π yd².
The two ends add the following to the total surface area:
2·π·(d/2)², or 2π·d²/4.
Thus, the total surface area of the cyl. is
A = 2π·(6 yd)²/4 + 72π yd², or
A = 18π yd² + 72π yd² = 90π yd²
Note: Please check your source. L x W + 2pi ·r ^2 is incorrect.
If you are adding the fractions themselves it would be 9/17. If the /'s are for division it's 0.53
