A: Foil
(b+2)(b+2)=b²+2b+2b+4=b²+4b+4
B: Again, Foil
(x+3)(x-3)=x²+3x-3x-9=x²-9
Answer:
150 ft²
Step-by-step explanation:
If you take that triangle and place it on the other side you get a normal rectangle and can just multiply 15 By 10
Technically yes they can be, but you won't get a whole number for all of them. To get a whole number only 3, 5, and 9 would be used.
Answer:
Step-by-step explanation:
15 ≤ x-2
The radius of the cylinder's base is 8, so the volume of the cylinder is
![\pi8^218\approx3617.28](https://tex.z-dn.net/?f=%5Cpi8%5E218%5Capprox3617.28)
(using the approximation of
![\pi\approx3.14](https://tex.z-dn.net/?f=%5Cpi%5Capprox3.14)
).
The sphere has radius 6, so the volume of the sphere is
![\dfrac43\pi6^3\approx904.32](https://tex.z-dn.net/?f=%5Cdfrac43%5Cpi6%5E3%5Capprox904.32)
.
The volume of the shaded region is the difference between the two: 3617.28 - 904.32 = 2712.96. Rounded to the nearest integer gives an answer of 2713.