Answer:
24
Step-by-step explanation:
if we observe carefully we can see that the difference in the number of dots from the first picture to the second picture is 5
and the difference in the number of dots from the second picture to the third picture is 7
so there might be a chance that the difference between the 3rd figure and 4th figure may be 9
so my answer is the number of dots in the 3rd picture + 9
15+9= 24
Cos(2x) = cos^2(x) - sin^2(x) - cos(x)
but sin^2(x) = 1 - cos^2(x)
cos(2x) - cos(x) = cos^2(x) - (1 - cos^2(x) ) - cos(x)
cos(2x) - cos(x) = cos^2(x) - 1 + cos^2(x) - cos(x)
cos(2x) - cos(x) = 2cos^2(x) - 1 - cos(x)
cos(2x) - cos(x) = (2cos(x) + 1)(cos(x) - 1)
I think this is what you have asked for.
Answer:
y=350x+125
Step-by-step explanation:
y=350x+125
