Answer:
It is not true. 19 - 10 = 9.
:) Hope this helps
C
Opposite / hypotenuse
Sin 45 degrees= 7/x
Answer:

Step-by-step explanation:
Sinse in this case you are dealing with direct variation, all you are doing is taking the <em>multiplicative</em><em> </em><em>inverse</em><em> </em>of 4, which is ¼:

This option is not an answer choise. Perhaps there was a typographical errour.
I am joyous to assist you at any time.
Answer:
f(x) = y
Step-by-step explanation:
f(x) always equals y, so the equation would be y = 7. therefore, I am pretty sure that x = y, but you may want to wait to ask your teacher. If there is more detail, message me!
The fraction of boys to total students would be 5/8
The fraction of boys to girls would be 5/3