kitty<3

78.4 = 4.9t

Divide ambos ladosd con 4.9:

78.4 / 4.9 = 4.9t / 4.9

$${\frac{{\mathtt{78.4}}}{{\mathtt{4.9}}}} = {\mathtt{16}}$$

16 = t

El seno 30 es:

$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{30}}^\circ\right)} = {\frac{{\mathtt{1}}}{{\mathtt{2}}}} = {\mathtt{0.5}}$$

You would use the arctan of 0.9063 (it is the inverse of the tangent, so it finds the angle's measurement):

$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{tan}}^{\!\!\mathtt{-1}}{\left({\mathtt{0.906\: \!3}}\right)} = {\mathtt{42.186\: \!016\: \!222\: \!452^{\circ}}}$$

So angle A is about 42 degrees.

Usa la Propiedad Distributiva:

(4a + 7b) (5a + 3b)

= 4a*5a + 7b*5a + 4a*3b + 7b*3b

= 20a^2 + 35ab + 12ab + 21b^2

= 20a^2 + 47ab + 21b^2

El porcentaje de la perdida es 144/4800:

$${\frac{{\mathtt{144}}}{{\mathtt{4\,800}}}} = {\frac{{\mathtt{3}}}{{\mathtt{100}}}} = {\mathtt{0.03}}$$

 0.03 es el mismo que 3%

Entonces, es 3%.

 There are 3 pieces: The second piece is three times as long as the first piece, and the third piece is two feet more than five times the length of the first piece.

So if x = the length of the first piece, the total length would equal: x + 3x + (5x + 2)

First set up the equation:

47 = x + 3x + 5x + 2

Simplify: 

47 = 9x + 2

Subtract 2:

45 = 9x

Divide by 9:

x = 5

So now you know the length of the first piece is 5 feet. The longest piece will be "two feet more than five times the length of the first piece" so it is : 2 + 5 * 5

= 2 + 25

= 27 feet long.

Hola Particio,

Esta calculadora tiene botón de grados y radianes. Le encuentras en la esquina inferior derecha:)

Para minutos y segundos, puedes multiplicar el numero con (1/60) para minutos, y (1/3600) para segundos.

Por ejemplo,

40 grados, 20 minutos, 50 segundos:

= (40) + [20 * (1/60)] * [50 * (1/3600)] grados

= (40) + (1/3) + (1/72) grados

~ $${\mathtt{40}}{\mathtt{\,\small\textbf+\,}}\left({\frac{{\mathtt{1}}}{{\mathtt{3}}}}\right){\mathtt{\,\small\textbf+\,}}\left({\frac{{\mathtt{1}}}{{\mathtt{72}}}}\right) = {\frac{{\mathtt{2\,905}}}{{\mathtt{72}}}} = {\mathtt{40.347\: \!222\: \!222\: \!222\: \!222\: \!2}}$$

~ 40.347 grados

si f(2)=8 , G(2)=4

2f(2)-3G(2) :

= 2*(8) - 3*(4)

= 16 - 12

= 4

m = (x-3) ,  n= (x-2)

m* n : 

= (x-3) * (x-2)

=x² - 3x -2x + 6

=x² - 5x + 6

$${\mathtt{3}}{\mathtt{\,\times\,}}{\sqrt{{\mathtt{2}}}} = {\mathtt{4.242\: \!640\: \!687\: \!119\: \!285\: \!1}}$$

~4.24