To divide fractions, we do Keep, Change, Flip. Keep means that we keep the first fraction the same ( which is 8/1). Then for Change, we change the division sign to a multiplication sign. After that we Flip the second fraction itś reciprocal (or multiplicative inverse).
So your equation would be:
8/1 x 3/1 which equals 24
The given function is
The inverse function is
To get the inverse, we swap each x and y coordinate.
The rule is
So that's why the point (0,1) becomes (1,0) for instance.
To solve the quadratic equation given by 0=x^2-9x-20, we use the quadratic formula given by:
x=[-b+\- sqrt(b^2-4ac)]/(2a)
where,
a=1,b=-9,c=-20
thus substituting the above values into our formula we get:
x=[9+\-sqrt(9^2-4(-20*1))/(2*1)
x=[9+\-sqrt(161)]/2
x=[9+sqrt161]/2 or x=[9-sqrt161]/2
Answer:
5/13
Step-by-step explanation:
Cos = opp/hyp
5 is opposite of angle R and 13 is the hypotenuse.