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vladimir1956 [14]
3 years ago
9

Find the radius of the circle using 3.14 as pi c= 12cm

Mathematics
1 answer:
mr_godi [17]3 years ago
5 0

Answer:

The radius:

r  = 1.95491

Rounding, it would be:

r  = 1.95

Step-by-step explanation:

\pi = 3.14 \\ c  = \pi\: {r}^{2}  \\  \\ 12 = (3.14) {r}^{2}  \\  {r}^{2}  =3.821656051 \\ r  = 1.95491

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Un alumno multiplica un número por 32 en lugar de multiplicarlo por 23, obteniendo un producto mayor en 54 al producto original.
romanna [79]

Answer:

La suma de cifras del producto original es igual a 12.

Step-by-step explanation:

De acuerdo a la información proporcionada, si multiplicas un número "x" por 32 su resultado sería igual al producto original "y" más 54 dado que dice que se obtiene un producto mayor en 54 al producto original, lo que se puede expresar de la siguiente forma:

32x=y+54

Además, se puede inferir a partir del enunciado que si el número x se hubiera multiplicado por 23 el resultado habría sido el producto original que lo denominamos como "y", por lo que puedes decir que:

y=23x

Ahora puedes reemplazar y=23x en 32x=y+54 y despejar x:

32x=23x+54

32x-23x=54

9x=54

x=54/9

x=6

Finalmente, puedes reemplazar el valor de x en y=23x:

y=23x

y=23*6

y=138

Suma de cifras: 1+3+8 = 12

De acuerdo a esto, la respuesta es que la suma de cifras es igual a 12.

5 0
3 years ago
A rectangular lamina of uniform density is situated with opposite corners at (0,0) and (15,4). calculate its radii of gyration a
Sphinxa [80]
First, you have to find the moment of inertia along the x and y axes. Constant density is denoted as k.


I_{x}= \int\limits^15_0\int\limits^4_0 {k y^{2} } \, dx  dy= \frac{1}{3}k (15-4)^4=4880.33k

I_{y}= \int\limits^15_0\int\limits^4_0 {k x^{2} } \, dx  dy= \frac{1}{3}k (15-4)^4=4880.33k

Then, the radii of gyration for

x = √[I_x/m]
y = [I_y/m]

where m = k(15-4)² = 121k. Then,

x = y = [4880.33k/121k] = 40.33

I hope I was able to help you. Have a good day.
7 0
3 years ago
What’s 18/1 as a mixed number
Alina [70]

Answer:

18

Step-by-step explanation:

18 over 1 is still 18. It shouldn't be a mixed number

3 0
3 years ago
Read 2 more answers
What is the difference between<br> a terminating decimal and a repeating<br> decimal?
yan [13]

Answer:

Terminating means to add. Repeating goes on forever and ever and ever.

Step-by-step explanation:

Example of terminating: 3.256

Example of repeating: 3.256934103...

A good repeating decimal would be pi.

7 0
3 years ago
The coefficient of the ab term is
Jlenok [28]

Answer:

A coefficient is an integer that is written along with a variable or it is multiplied by the variable. For example, in the term 2x, 2 is the co-efficient.

Those variables which do not carry any number along with them, have a coefficient 1. For example, the term y has coefficient 1.

Step-by-step explanation:

5 0
3 years ago
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