Answer:
217
Step-by-step explanation:
124%=x
36%=63
=>![x=\dfrac{63\times 124}{36}=217](https://tex.z-dn.net/?f=x%3D%5Cdfrac%7B63%5Ctimes%20124%7D%7B36%7D%3D217)
We have the rational expression
![\frac{2x^{5}-6x^{2}+4x4y}{2x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2x%5E%7B5%7D-6x%5E%7B2%7D%2B4x4y%7D%7B2x%7D%20)
; to simplify it, we are going to try to find a common factor in the numerator, and, if we are luckily, that common factor will get rid of the denominator
![2x](https://tex.z-dn.net/?f=2x)
.
Notice that in the denominator all the numbers are divisible by two, so 2 is part of our common factor; also, all the terms have the variable
![x](https://tex.z-dn.net/?f=x)
, and the least exponent of that variable is 1, so
![x](https://tex.z-dn.net/?f=x)
will be the other part of our common factor. Lets put the two parts of our common factor together to get
![2x](https://tex.z-dn.net/?f=2x)
.
Now that we have our common factor, we can rewrite our numerator as follows:
![\frac{2x(x^{5}-6x+2(2y)}{2x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2x%28x%5E%7B5%7D-6x%2B2%282y%29%7D%7B2x%7D%20)
We are luckily, we have
![2x](https://tex.z-dn.net/?f=2x)
in both numerator and denominator, so we can cancel those out:
![x^{5}-6x+2(2y)](https://tex.z-dn.net/?f=x%5E%7B5%7D-6x%2B2%282y%29)
![x^5-6x+4y](https://tex.z-dn.net/?f=x%5E5-6x%2B4y)
We can conclude that the simplified version of our rational function is
![x^{5}-6x+4y](https://tex.z-dn.net/?f=x%5E%7B5%7D-6x%2B4y)
.
For 4 4 to 5 16 to 20 24 to 30
Answer:
a. 90º
Explanation:
The chords ST and RA intesect at Y, so that SY is now perpendicular to RY and they form an angle 90 degrees at that point. However angles mSA and mRT are both at the circumference of the circle(a chord is a line from point of a circle's circumference to the other) and are both 90 degrees because angle at the circumference is half of angle at the centre in same arc.