He started with 3.
3 X 3 = 9.
9 - 5 = 4.
4 X 4 = 16.
16 - 7 = 9.
9 divided by 3 = 3.
3 + 6 = 9.
Answer:
depending on what your using these are the answers to what I got:
Addition: 2 1/2
Multiplication: 135/256
Division: 2 2/5
Step-by-step explanation:
1 1/8 + 3/4 + 5/8 = 5
/2 = 2 1/2 = 2.5
or
1 1/8 x 3/4 x 5/8 = 135/256 = 0.527
or
1 1/8 ÷ 3/4 ÷ 5/8 = 12/5 = 2 2/5 = 2.4
= -x^2 - (3x - 12x^2 + 7x ) - (2 - 2x - 2)
= -x^2 - 3x + 12x^2 - 7x - 2 + 2x + 2
= 11x^2 - 8x
Answer
11x^2 - 8x
Answer:
f(x) = 2π (11 + sin x) √(1 + cos²x)
Step-by-step explanation:
Surface area of a curve rotated about y = a is:
S = ∫ 2π (y − a) ds,
where ds = √(1 + (dy/dx)²) dx.
y = 6 + sin x, and a = -5. dy/dx = cos x. Plugging in:
S = ∫₀²ᵖⁱ 2π (6 + sin x − -5) √(1 + cos²x) dx
S = ∫₀²ᵖⁱ 2π (11 + sin x) √(1 + cos²x) dx
Therefore, f(x) = 2π (11 + sin x) √(1 + cos²x).
