Answer:
.
Step-by-step explanation:
The given function is
.
We want to find a rule for
.
Let
.
Interchange x and y.
.
Solve for y.
.
Expand
.
Group y-terms
.
Factor
.
.
.
Answer:
ez
Step-by-step explanation:
For a all you have to do is multiply by 3 so the answer would be -15
For b all you have to do is subtract 12 then divide by -1 so the answer would be -0.5
for c all you have to do is divide by -10 so the answer would be -0.1/-10 or 0.1/10
Answer:
Solution given
Cos I=adjacent/hypotenuse=16/34
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The answer is

. I've demonstrated the 'split and combine' method in the image attached.
This principal is based on the fact that you can multiply and divide radicals as you would with regular integers, but you remember that the answers remain as radicals unless the number you're dealing with is a square (e.g. 9, 16, 25).
Subtract 3 from both sides so that the equation becomes -2x^2 + 5x - 13 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
x = [ -b ± √(b^2 - 4ac) ] / (2a)
x = [ -5 ± √((5)^2 - 4(-2)(-13)) ] / ( 2(-2) )
x = [-5 ± √(25 - (104) ) ] / ( -4 )
x = [-5 ± √(-79) ] / ( -4)
Since √-79 is nonreal, the answer to this question is that there are no real solutions.