3 years ago

Find the square root of 3721 by least common multiple method

Mathematics

2 answers:

dezoksy [38]3 years ago

5 0

Answer:

Step-by-step explanation:

maw [93]3 years ago

5 0

Answer:

Step-by-step explanation:

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If Nancy uses 1 74 tablespoons of coffee to make 10 cups of coffee, how

Anna [14]

Answer:

if you mean 17/4 tablespoons then it would take .425 tablespoons to make one cup of coffee, because 17/4 is 4.25 as a decimal.

Step-by-step explanation:

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3 years ago

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Suppose that surface σ is parameterized by r(u,v)=⟨ucos(3v),usin(3v),v⟩, 0≤u≤7 and 0≤v≤2π3 and f(x,y,z)=x2+y2+z2. Set up the sur

Bad White [126]

Looks like you have most of the details already, but you're missing one crucial piece.

$\sigma$ is parameterized by

$\vec r(u,v)=\langle u\cos3v,u\sin3v,v\rangle$

for $0\le u\le7$ and $0\le v\le\frac{2\pi}3$ , and a normal vector to this surface is

$\dfrac{\partial\vec r}{\partial u}\times\dfrac{\partial\vec r}{\partial v}=\left\langle\sin3v,-\cos3v,3u\right\rangle$

with norm

$\left\|\dfrac{\partial\vec r}{\partial u}\times\dfrac{\partial\vec r}{\partial v}\right\|=\sqrt{\sin^23v+(-\cos3v)^2+(3u)^2}=\sqrt{9u^2+1}$

So the integral of $f(x,y,z)=x^2+y^2+z^2$ is

$\displaystyle\iint_\sigma f(x,y,z)\,\mathrm dA=\boxed{\int_0^{2\pi/3}\int_0^7(u^2+v^2)\sqrt{9u^2+1}\,\mathrm du\,\mathrm dv}$

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3 years ago

An architect's scale drawing of a new school is 8.4 inches long. The scale used in the drawing is 2 inches = 8 feet.

Brut [27]

Answer:

33.6f eet

Step-by-step explanation:

2=8 then

8.4x8= 67.2/2= 33.6 feet

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3 years ago

Two sides of a triangle have lengths 4 and 7. Which of the following can NOT be the length of the third side?

Elanso [62]

Answer:

It has to be 4-7

Step-by-step explanation:

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Sandra saves 10% of her salary for retirement. This year her salary was $1,000 more than in the previous

baherus [9]

Answer:

x = 25500

Step-by-step explanation:

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3 years ago