Cosecant is one of the six trigonometric identities which is equal to the reciprocal of sine function. In this case, theta is equal to sin -1 = 1/2 equal to 30 degrees. Since this is in quadrant II, the angle is 180 - 30 or 150 degrees. cos 150 is equal to -0.866 or -ssqrt 3 over 2.
So, the ration is 17:3, you know that. Therefore, the change from # of students to the 17 is the same change as # teachers to 3. Knowing this, you also know that the total # of people ihas the same change as the total ratio. So 17+3 = 20. 740/20 = 37. So the change is 37. 3x37= 111 17x37=629
You can check to make sure this answer is correct by adding the two final numbers. 111+629 = 740. (Some find it easier to see lined up really pretty)
17 -- 3 total 20
x -- y total 740
Or, if you are visual, look at the picture I drew:
Answer:
19.5
Step-by-step explanation:
Don't need one to smart.
<h3>¡Hola!</h3>
-----48
-----3/4
-----X
Sabiendo los datos
Planteamos ecuación:
==> En este caso debemos hallar el 3/4% de 48.
Usamos la regla de tres simple.
Resolvemos.
Hallamos el decimal de 9/25
Entonces podemos decir que:
En total a Susana le faltan 0.36km para llegar a casa.
#Spj2
