A = 2πrh + 2πr^2 is the formula. Where A = surface area, r = radius, and h = height. So all we need to know is the outer radius, which is 3.5. Hope this helps you.
The answer is choice A) y = 2^x - 1
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Explanation:
Note how the curve goes through (0,0). So this means that plugging in x = 0 should lead to y = 0. Let's see which choices do that for us
choice A) y = 2^x - 1 = 2^0 - 1 = 1-1 = 0
choice B) y = 2^(x - 1) = 2^(0 - 1) = 2^(-1) = 0.5
choice C) y = 2^x + 1 = 2^0 + 1 = 1+1 = 2
choice D) y = 2^(x + 1) = 2^(0 + 1) = 2^1 = 2
Only choice A has x = 0 lead to y = 0, which is why choice A is the answer
A(n,s)=(ns^2)/(4tan(180/n)), n=number of sides, s=side length
A(8,4.6)=(8*4.6^2)/(4tan22.5)
A(8,4.6)=42.32/tan22.5 m (exact)
A(8, 4.6)≈102.17 m^2 (to nearest hundredth of a square meter)
You know that the standard form for linear equation is Ax+By=C
Rearrange the equation as follows;
6x+8y=-4
Hope I helped :)
2, 3 . 4, 6 . 8, 12 . 16, 24 . 32, 48 . 62, 96 . 124, 192 .
