Answer:
The answer to your question is x = 17.32; y = 8.67
Step-by-step explanation:
Process
1.- Use trigonometric functions to find x and y
a) sin Ф = 
Ф = 60°
opposite side = 15
hypotenuse = ?
hypotenuse = 17.32
b) cosФ = 
y = 8.67
Infinitely many, because if you simplified the right side, it would equal the left side.
Given that the concentration has been modeled by the formula:
C(t)=50t/(t^2+25)
where:
t is time in hours.
The concentration after 5 hours will be given by:
t= 5 hours
plugging the value in the equation we get:
C(5)=(50(5))/(5^2+25)
simplifying the above we get:
C(5)=250/(50)=5 mg/dl
Answer: 5 mg/dl
The answer to this question is C. 11. (I am making a joke by mentioning the music disc C418 Music Disc Variation 11 from Minecraft. I hope you play or else you might not get the joke I implied.) Hoped this helped. (Also I am going for 10 Brainliest answers. I would greatly appreciate it if you chose mine as the Brainliest answer. Thank you 100 times in advance. :))
Answer:
x=14
Step-by-step explanation:
2 times x = 2x and 2 time 9 is 18 so the equation is 2x-18=10. then you add 18 to both sides and get 2x=28 then simplify to x=14
