3 years ago

Can someone help me solve this

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

3 0

Answer:

∠ 6 = 38°

Step-by-step explanation:

∠6 and 38° are vertical and congruent, thus

∠ 6 = 38°

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Answer:

Step-by-step explanation:

Given that

$r(t) = (t,t,e^t)$

To find tangent, normal and binormal vectors at (0,0,1)

i) Tangent vector

$r'(t) = (1,1,e^t)\\$

At the particular point, r'(t) = (1,1,e)

Tangent vector = $\frac{r'(t)}{||r'(t)||} \\=\frac{(1,1,e)}{\sqrt{1+1+e^2} } \\=\frac{(1,1,e)}{\sqrt{2+e^2} }$

ii) Normal vector

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At that point T'(t) = (0,0,e)/e = (0,0,1)

iii) Binormal

B(t) = TX N

= $\left[\begin{array}{ccc}i&j&k\\1&1&e^t\\0&0&e^t\end{array}\right] \\= e^t(i-j)$

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4 years ago

A regular hexagon is to be cut out of a circular sheet of metal that has a radius of 6

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The correct answer to your problem would be “d”

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3 years ago

−np − 90 < 30 for n

skelet666 [1.2K]

-np-90+90<30+90
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4 years ago

X-1 / x-1 = 1<br> What is x?

lions [1.4K]

Answer:

$\large\boxed{x\in\mathbb{R}-\{1\}}\to\text{any real number except 1}$

Step-by-step explanation:

$\dfrac{x-1}{x-1}=1\\\\\text{Domain:}\ x-1\neq0\qquad\text{add 1 to both sides}\\\\x\neq1\\\\\text{We know:}\ \dfrac{a}{a}=1\ \text{for any real number except 0}.\\\\\text{Therefore}\ x\ \text{is any real number except 1}.$

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3 years ago

2a + 9 = 4 then a = _______

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Answer:

$a=\frac{-5}{2}$

Step-by-step explanation:

$2a+9=4$

$2a=4-9$

$2a=-5$

$a=\frac{-5}{2}$

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3 years ago