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4 years ago

If you add all the numbers you get 81 81 / 8 = 10.1 So what do I put

Mathematics

1 answer:

Alecsey [184]4 years ago

4 0

If you add ALL the numbers you get 92

92/8 = 11.5

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What differentiable functions have an arc length on the interval [a, b] given by the following integrals? Note that the answers

Dafna1 [17]

Answer:

a) $\pm 8\frac{x^{5}}{5}+C$

b) $\pm 4 sin(2x) + C$

Step-by-step explanation:

Given integrals are:

$a) \int\limits^a_b {\sqrt{{1+64x^{8}} } \, dx$ ---(1)

$b) \int\limits^a_b {\sqrt{1+64cos^{2}(2x)} } \, dx$ ---- (2)

Standard form

$L= \int\limits^a_b {\sqrt{1+(f'(x))^{2}} } \, dx$

compare (1) with standard form

$[f'(x)]^{2} = 64x^{8}\\f'(x)=\pm 8x^{4}\\f(x)= \pm8\frac{x^{5}}{5}+C$

Compare (2) with standard form

$[f'(x)]^{2}=64cos^{2}(2x)\\f'(x)= \pm 8cos(2x)\\f(x)=\pm 8\frac{sin(2x)}{2}+C\\f(x)= \pm 4sin(2x)+C$

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3 years ago

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Evaluate 8j -k+14 when j = 0.25 and k =1

Amiraneli [1.4K]

Substitute
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Step-by-step explanation:

D. Or c.

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3 years ago

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Answer: 3 ÷ 11 or 3 divided by 11

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