Lets solve for t in the height equation:
h = 7 cos (pi/3 t)
cos (pi/3 t) = h/7
pi/3 t = cos^-1 (h/7)
t = (3/pi) <span>cos^-1 (h/7)
then we substitute:
</span>t = (3/pi) <span>cos^-1 (1/7)
</span>t = 78.1 s
t = (3/pi) <span>cos^-1 (3/7)
</span>t= 61.71
t = (3/pi) <span>cos^-1 (5/7)
</span>t = 42.41
those are the times in seconds respectively.
A veriable = 1, use it as with pemdas
The ratio would be 6 tablespoons of sugar for every 21 tablespoons of flour. Hope this helps!
Answer:
60%
Step-by-step explanation:
Fruit = 10+15 = 25
Percent oranges = oranges / fruit
= 15/25 = .6 = 60%
Answer:
2
Step-by-step explanation:
mean = sum of data / no of data
=2+2+2+2+2/5
=10/5
=2