Step-by-step explanation:

where n is an element of Integer
* the values of sinx intersects the x-axis when sinx=0
for example:
sin0°=sin180°=sin360°=0
Okay. The question is m/9 - 17 = 21. First off, we will add 17 to both sides. -17 + 17 cancels out. 21 + 17 is 38. That leaves m/9 = 38. Multiply each side by 9 to isolate the m, because m is the numerator and 9 is the denominator. m/9 * 9/1 cancels out. 38 * 9 is 342. Let's check this. 342/9 is 38. 38 - 17 is 21. 21 = 21. There. x = 342.
Answer:

Step-by-step explanation:
First, extract the greatest common factor of the numerical as well as the variable parts:
the GCF of 5 and 80 is "5", and the GCF between
and
is
, then:

Now, we can re-write the binomial in parenthesis as a difference o squares to be able to factor out even further:

we now repeat the process for the binomial difference:

So finally the complete factorization is:

The answer is 7/10
the 7 is in the tenth place making the denominator a 10 and no same number goes into both 7 and 10.
35*7
= (30+5)*7
= 210+ 35
= 245
The final answer is 245~