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Andre45 [30]
4 years ago
5

WhAt is the volume of the right circular cone with the radius of 4cm and a height of 12cm

Mathematics
1 answer:
aivan3 [116]4 years ago
5 0
201.06 It is easy.  You can search it up on google.
You might be interested in
Find each difference. Write in simplest form 7/8-5/8=
Ivanshal [37]
7/8-5/8= 2/8 and if you reduce 2/8 by 2 it becomes 1/4. So 1/4 is your answer. Hope This Helps :D
5 0
4 years ago
Dado dos ángulos complementarios, uno mide (2x + 10) y el otro (x + 20),
rusak2 [61]

Answer:

El valor de <em>x</em> es igual a 20 o <em>x</em> = 20.

Step-by-step explanation:

Lo primero que se debe saber es que <em>dos ángulos complementarios suman un ángulo recto o 90º</em>.

Supongamos que el valor de un ángulo \\ \alpha y un ángulo \\ \beta valen:

\\ \alpha = 2x + 10 [1]

\\ \beta = x + 20 [2]

Como la suma de  \\ \alpha + \beta = 90 [3]

Entonces

\\ \alpha + \beta = (2x + 10) + (x + 20) = 90

Sumamos los factores comunes entre si:

\\ (2x + x) + (10 + 20) = 90

Para la primera expresión debemos recordar que se suman sólo los coeficientes. Así:

\\ (2 + 1)x + (10 + 20) = 90

\\ 3x + 30 = 90

Para despejar la incógnita <em>x</em>, debemos tener en cuenta que <em>una igualdad no se altera si se suma, se resta, se multiplica o divide un mismo valor a cada lado de ella</em>. Por esta razón, para despejar 3x, lo primero que podemos hacer es sumar -30 a cada lado de la expresión (lo que es igual a restar 30 a cada lado de la misma). Así tenemos:

\\ 3x + 30 - 30 = 90 - 30

\\ 3x + 0 = 90 - 30

\\ 3x = 60

Ahora dividimos cada miembro de la igualdad entre 3 (o multiplicamos cada lado de la igualdad por \\ \frac{1}{3} ):

\\ \frac{3}{3}x = \frac{60}{3}

Como sabemos que:

\\ \frac{3}{3} = 1

Entonces:

\\ 1*x = \frac{60}{3}

\\ x = \frac{60}{3}

\\ x = 20

De esta manera, el valor de <em>x</em> es igual a 20 o x = 20.

Lo anterior lo podemos comprobar considerando las ecuaciones [1], [2] y [3]. Así tenemos que:

\\ \alpha = 2x + 10 [1]

Sustituimos x por el valor de 20:

\\ \alpha = 2*20 + 10 = 40 + 10 = 50

\\ \beta = x + 20 [2]

Hacemos lo mismo para [2]:

\\ \beta = 20 + 20

\\ \beta = 40

De esta manera:

\\ \alpha + \beta = 90 [3]

\\ 50 + 40 = 90

4 0
3 years ago
Greg wants to estimate the percentage of people who lease a car. He surveys 340 individuals and finds out that 90lease a car
Fittoniya [83]

Answer:

26.47%

Step-by-step explanation:

Total individual =340

Individual who lease car=90

Now,

90 out of 340 people lease car.

Fraction of people leasing car=90/340 =9/34

Percent of people leasing car=fraction *100%

=9/34 *100%

=26.47%

6 0
3 years ago
Pls answer both!!!!!! PLEASEEEEEEEEEEEEEE
Tasya [4]
The first one is k=2

and the second one is 7 cups of flour will make 14 batches of cookies
8 0
3 years ago
I need help with this math problem for delta math and im not good at it
shutvik [7]

Answer:

<h2>hope it helps.</h2><h2>stay safe healthy and happy.</h2>

6 0
3 years ago
Read 2 more answers
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