Answer:
3999
Step-by-step explanation:
Answer:
She has 12 dolls
There are four 2's in the number eight, so 3 x 4 = 12.
The general solution of tan(b·x) = 2, given that the smallest positive solution is x = 0.3, is presented as follows;

The given smallest positive solution of tan (b·x) = 2 is x = 0.3
The general solution of tan (b·x + c) = m, is given as follows;

α = arctan(m) = x₀
The minimum positive value of the general solution is therefore presented as follows;


In the given function, tan (b·x), we therefore, have;
c = 0, m = 2, 
The general solution of tan(b·x) = 2, is therefore;

Learn more about the general solution of a sine function here:
https://brainly.in/question/1549935
Answer:
x = 7
Step-by-step explanation:
y = 14
14 x 2 = 28
Therefore:
3.5 x 2 = 7
Answer: The ratios are both identical. (Choice A)
Why does this answer work?
Well let's refer to the diagram below.
Angle x has side 12 opposite it and the hypotenuse is 13.
This means sin(x) = opposite/hypotenuse = 12/13
Also, angle y has side 12 adjacent to it, meaning,
cos(y) = adjacent/hypotenuse = 12/13
Both trig ratios result in 12/13 and we can say sin(x) = cos(y)
One last thing to notice is that x+y = 90
In other words, if x+y = 90, then sin(x) = cos(y)
Phrased a slightly different way: if x+y = 90, then sin(y) = cos(x)