Step-by-step explanation:
If we convert
to a Cartesian equation,
So we have a circle with center (-5,0), with a diameter of 10.
We have
<span>y=cos x/(x</span>²+x+2) <span>on the closed interval [-1, 3]
</span><span>
we know that
</span>The average value of f(x) on the interval [a, b] is given by:
<span>F(avg) = 1/(b - a) ∫ f(x) dx (from x=a to b).
(b-a)=(3+1)------> 4
</span>= 1/4 ∫ cos(x)/(x² + x + 2) dx (from x=-1 to 3).
Note that [cos(x)/(x² + x + 2)] does not have an elementary anti-derivative.
By approximating techniques:
1/4 ∫ cos(x)/(x^2 + x + 2) dx (from x=-1 to 3) ≈ 0.182951
the answer is
<span>the average value of y = cos(x)/(x</span>²<span> + x + 2) on [-1, 3] is approximately 0.182951</span>
2 dvds = 3cds($13.20 a piece)
2dvds = 39.60
2x = 39.60 Divide by 2 on both sides
x = 19.80 (the price of one dvd)
To simplify 2sin2x cos2, you need to use (1 - cos(4x))/4. The correct
answer between all the choices given is the first choice or letter A. I am
hoping that this answer has satisfied your query about and it will be able to
help you.
<span>2 3/4 = 2.75
so
</span>2 3/4 = 2.75%
