Volume of cylinder = π.R².h , where R = radius and h = height
Let's replace h by 2h:
V₁= πR².(2h) → V₁ = 2π.R².h
Now let's double R, the radius (and keep h as h)
V₂ = π.(2R)².h → V₂ = 4.π.R².h
Compare V₁ to V₂→ (V₁ = 2π.R².h and V₂ = 4.π.R².h).
It's obvious that V₂ = 2.V₁
Answer:
Step-by-step explanation:
Hence, the result will be
you can put the scalar in to get
One triangle has 180°
33°+57°=90°
180°-90°=90
So Z is 90°
so it's a right triangle.
Answer:
9x - 9y + 8
Step-by-step explanation:
Simplify means to solve, but in this context it means to "shorten" it by adding the like terms together:
7x - 9y + 15 + 2x - 7
rearrange to make it easier, optional
7x + 2x - 9y + 15 - 7
add like terms
9x - 9y + 8
