Mathematics, 13.11.2019 00:31 preciadogabriel40

What is meant by the term "two radians" ? ?

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Radians are another way to measure angles.

There are 2*pi radians in a full turn so 360 degrees = 2*pi radians
180 degress = pi radians
90 degrees = pi/2 radians etc

Quite often we talk about measures of radians in terms of multiples (or fractions) of pi.

To convert from degrees to radians you divide by 180 and multiply by pi.
To convert from radians to degrees you do the reverse and divide by pi and multiply by 360.

The term "two radians" therefore is the size of an angle. We can think of it in degrees if that makes more sense by converting it as described above.

2/pi*180 = about 114.6 degrees.

If you are doing any calculus you should always make sure you use radians for your angles.

Answer from: Quest

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.

Answer from: Quest

la parábola es el lugar

geométrico en el cual los puntos tienen una distancia idéntica, equidistantes,

de un punto denominado foco, f, y una recta denominada directriz

el radio vector de una

parábola es el segmento que existe entre un punto cualquiera y el foco.

por la ecuación se observa

que la parábola abre hacia la derecha, por lo cual podemos usar las siguientes fórmulas

la ecuación ordinaria de la

parábola es y^2 = 4px, donde p es la longitud desde el vértice de la parábola al

foco.

la fórmula de la directriz

es x + p = 0

resolviendo:

y^2-9x = 0

y^2 = 9x

4p = 9, entonces p = 9/4

entonces el foco tendrá la

coordenada f(9/4,0)

la directriz vendrá

expresada por

x + p = 0

x = -p

x = -9/4

el problema indica que la

ordenada es igual a 6, entonces

(6)^2=9x

x = 36/9

x = 4

entonces el punto al cual

hay que obtener la distancia será p(4,6)

calculando se tendrá: pf =

pf = 6,25 u

ver más en -

step-by-step explanation:

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