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Nina [5.8K]
3 years ago
8

Can a house be designed without mathematics

Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
6 0
It could but it would be very wonky and dangerous to build
KengaRu [80]3 years ago
5 0
Depends on your definition of "house".
Technically it is possible to build a type of "shelter"
But to build a real house, even a small shed, it is necessary to use at the very least basic math. Even if you were building and planning on the go, it would require some math. You need math to calculate how large of materials you would need, how much money, the length and width of the house, how much supplies you need etc.
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What percent of 126 is 22?​
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Answer:

17.5%

Step-by-step explanation:

=22÷126

=0.1746 or 0.175

to convert into percentages= 0.175x100℅

=17.5%

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3 years ago
Write −0.9 as a fraction in simplest form.
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Use a surface integral to find the surface area of the portion of the sphere xUse a surface integral to find the surface area of t
brilliants [131]

Parameterize this surface (call it S) by

\vec r(u,v)=\cos u\sin v\,\vec\imath+\sin u\sin v\,\vec\jmath+\cos v\,\vec k

with 0\le u\le2\pi and 0\le v\le\dfrac\pi4. The limits on u should be obvious. We find the upper limit for v by solving for v where the sphere and cone intersect:

\begin{cases}x^2+y^2+z^2=1\\z=\sqrt{x^2+y^2}\end{cases}\implies x^2+y^2=\dfrac12

\implies(\cos u\sin v)^2+(\sin u\sin v)^2=\dfrac12

\implies\sin^2v=\dfrac12

\implies\sin v=\dfrac1{\sqrt2}\implies v=\dfrac\pi4

Take the normal vector to S to be

\vec r_u\times\vec r_v=-\cos u\sin^2v\,\vec\imath-\sin u\sin^2v\,\vec\jmath-\cos v\sin v\,\vec k

(orientation does not matter here)

Then the area of S is

\displaystyle\iint_S\mathrm dA=\iint_S\|\vec r_u\times\vec r_v\|\,\mathrm du\,\mathrm dv

=\displaystyle\int_0^{\pi/4}\int_0^{2\pi}\sin v\,\mathrm du\,\mathrm dv

=\displaystyle2\pi\int_0^{\pi/4}\sin v\,\mathrm dv=\boxed{(2-\sqrt2)\pi}

4 0
3 years ago
A gym charges $8.75 for each swimming class and a one time registration fee of $12.50. A student paid a total of $56.25. Write a
Elena-2011 [213]

Answer:

12.50 + 8.75x = 56.25

12.50 + 8.75 (5) = 56.23

12.50 + 43.75 = 56.23

Step-by-step explanation:

5 0
4 years ago
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