B I think please give me brainliest
So hmm notice the picture below
you're simply being asked to, approximate the area, by using 4 rectangles, like in the graph, it doesn't have to be an exact value, just an approximation, based on the width and height of the rectangles, and getting their area by that
those rectangles are 0.39 radian long, since if you split π/2 in 4 pieces, you get around that much, the last rectangle there is a bit smaller than 0.39.... but they don't have to be 4 rectangles of equal length
so, get the area of the rectangles, based on their width and height, and sum them up
total cost = membership +cost per class* number of classes
y = 275+5*x
Choice C
Hello!
The sin of D would be the opposite side divided by the hypotenuse. As we have no hypotenuse length, neither A or D would work, as the cosine also involves the hypotenuse.
The tangent is the opposite divided by the adjacent. This would be, in terms of D, 24/31. This does not match our option.
In terms of K, the tangent is 31/24.
Therefore, our answer is C) tanK= 31/24
I hope this helps!