The correct answer to this question is <span>d.) integral from 1 to 2 of (2/(x+1))
</span>To solve this:
Since Δx = 1/n.
lim (n→∞) Δx [1/(1+Δx) + 1/(1+2Δx)+ ... + 1/(1+nΔx)]
= lim (n→∞) Σ(k = 1 to n) [1/(1 + kΔx)] Δx.
x <---> a + kΔx
a = 0, then b = 1, so that Δx = (b - a)/n = 1/n
Since (1 + kΔx) combination, a = 1 so that b = 2.
Then, f(1 + kΔx) <-----> f(x) ==> f(x) = 1/x.
This sum represents the integral
∫(x = 1 to 2) (1/x) dx, so the correct answer is <span>d.) integral from 1 to 2 of (2/(x+1))
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The bottom tier is 18+12+8 = 38
the middle tier is 12+8+6 = 26
the top tier is 4x3 = 12
the total is 76
The formula for doing this is Length plus Width plus Height.
Just subsitute 10 for Q
pemdas
(Q*5)=(10 times 5)=50
(50)+20=70
the answer is 70
The general formula of the circle is (x-h)^2 + (y-k)^2 = r^2
where (h,k) the center of the circle and r is the radius
so , the equation is (x-5)^2 + (y-6)^2 = 9
since the original price was ninety we have to multiply 5/6 by 90
90/1(5/6)
=450/6
=75
