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3 years ago

PLZ HELP IM TERRIBLE AT MATH

Mathematics

1 answer:

Lena [83]3 years ago

5 0

Answer:

120.9

Step-by-step explanation:

I dunno if this is right or wrong but this is what a calculated somehow please tell me if this is wrong or not

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Name this triangle Acute, Scalene Obtuse, Scalene Right, Isosceles Acute, Equilateral

katrin [286]

Answer:

Scalene

Step-by-step explanation:

The reason is because all the sides are different.

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3 years ago

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What is the answer to this question

horsena [70]

Answer:

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Step-by-step explanation:

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2 years ago

Use Simpson's Rule with n = 10 to estimate the arc length of the curve. Compare your answer with the value of the integral produ

SOVA2 [1]

$y=\ln(6+x^3)\implies y'=\dfrac{3x^2}{6+x^3}$

The arc length of the curve is

$\displaystyle\int_0^5\sqrt{1+\frac{9x^4}{(6+x^3)^2}}\,\mathrm dx$

which has a value of about 5.99086.

Let $f(x)=\sqrt{1+\frac{9x^4}{(6+x^3)^2}}$ . Split up the interval of integration into 10 subintervals,

[0, 1/2], [1/2, 1], [1, 3/2], ..., [9/2, 5]

The left and right endpoints are given respectively by the sequences,

$\ell_i=\dfrac{i-1}2$

$r_i=\dfrac i2$

with $1\le i\le10$ .

These subintervals have midpoints given by

$m_i=\dfrac{\ell_i+r_i}2=\dfrac{2i-1}4$

Over each subinterval, we approximate $f(x)$ with the quadratic polynomial

$p_i(x)=f(\ell_i)\dfrac{(x-m_i)(x-r_i)}{(\ell_i-m_i)(\ell_i-r_i)}+f(m_i)\dfrac{(x-\ell_i)(x-r_i)}{(m_i-\ell_i)(m_i-r_i)}+f(r_i)\dfrac{(x-\ell_i)(x-m_i)}{(r_i-\ell_i)(r_i-m_i)}$

so that the integral we want to find can be estimated as

$\displaystyle\sum_{i=1}^{10}\int_{\ell_i}^{r_i}p_i(x)\,\mathrm dx$

It turns out that

$\displaystyle\int_{\ell_i}^{r_i}p_i(x)\,\mathrm dx=\frac{f(\ell_i)+4f(m_i)+f(r_i)}6$

so that the arc length is approximately

$\displaystyle\sum_{i=1}^{10}\frac{f(\ell_i)+4f(m_i)+f(r_i)}6\approx5.99086$

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3 years ago

0.04 is 1/10 0f what

PSYCHO15rus [73]

0.04, or 4 hundredths is 10 percent of 0.40
10 times 0.04 gives you 0.40

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4 years ago

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The present shown below is a cube.

Law Incorporation [45]

Answer:

1350 cm^2

Step-by-step explanation:

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3 years ago

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**PLZ HELP IM TERRIBLE AT MATH**

PLZ HELP IM TERRIBLE AT MATH