Answer:
x is 70°
Step-by-step explanation:
80 + 55= 135
180-135 = 45
45 +45 =90
180-90=90
80+80= 160
180-160= 20
20 +90= 110
180-110 = 70
x is 70
Answer:
16
Step-by-step explanation:
=3+25−9÷3(4)
=28−9÷3(4)
=28−(3)(4)
=28−12
=16
I hope this helps. Have a good day!!
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).
Answer: 70
V = 15.14/3 = 5.14 = 70 (in³)
Step-by-step explanation:
Answer:
We only need to calculate the 15% of 44.99 and 49.99 and sum them, for that, we have to multiply each number by 0.15:
44.99 * 0.15 + 49.99 * 0.15 = 14.27
He saved 14.25 (you should put the unit it's).
We could also have done a rule of three (which is what we have really did before)
44.99 - 100%
x - 15%
x =
=. 6.75
49.99 - 100%
x - 15%
x =
= 7.5
6.75 + 7.5 = 14.25