Answer:
Picture 1: b
Picture 2: d
Picture 3: c
Step-by-step explanation:
Hi there,
For Picture 1, to solve for an inverse function, just simply solve for x. Since the closest you can get is arccos(πx)=2y+6, you just
solve for cosine as a function: cos(2y+6)=πx and solving for x:
x= (1/π)cos(2y+6) but since variable choice is arbitrary, you can now redefine y and x:
y= (1/π)cos(2x+6)
For Picture 2, tanx is equivalent to sinx/cosx and cscx is just the reciprocal of sinx. So, it becomes:
We have already been giving the cosine value of 2, and its inverse is thus 1/2.
For Picture 3, I would recommend revisiting polar coordinates.
Polar coordinates are in the form (r, θ).
and θ . Recognize there are two possible radii, depending on what side of the circle you start from!
thanks,
(-9/8)x - 7 = -25
(-9/8)x - 7 + 7 = -25 + 7
(-9/8)x = -18
((-9/8)x)/(-9/8) = -18/(-9/8)
x = 18 × (8/9)
x = 16
Answer:
Step-by-step explanation:
Answer:
1/151200
Step-by-step explanation:
The number of ways to pick an exact order of any 6 different numbers from 10
=
= 10×9×8×7×6×5 = 151200 ways
which means the first one can be any of 10 numbers
The second one can be any of 9 numbers
The 3rd one can be any of 8 numbers and so on
Now the 6th one can be any of 5 numbers
Thus there are 10×9×8×7×6×5 = 151200 ways to choose the number
so the required probability is 1/151200