If you would like to solve 26/57 = 849/5x, you can do this using the following steps:
<span>26/57 = 849/5x /*(5x)
</span>26/57 * (5x) = 849 /*57
26 * 5x = 849 * 57 /26
5x = 48393/26 /5
x = <span>48393/(26*5)
x = 372.25
The correct result would be </span><span>372.25.</span><span>
</span>
1.
Rate of change: 1:5
Equation: x · 5 = y
Is this relationship proportional? Yes
How do you know? I know, because the table never doesn't follow the equation.
2.
Rate of change: 1:1
Equation: x · 1 = y
Is this relationship proportional? Yes
How do you know? I know, because the table never doesn't follow the equation.
Answer:
Measure of the 4th angle = 360-(102+84+77)
= 360-263
= 97°
Hope this helps!
Deductive. Since you're making the assumption from something that is mainly true
Look at the attached figure. We define the unit circle as a circle with center 
in the origin (0,0) and radius 1.
Then, we consider a point P on the circumference. We call 
the angle between the positive half of the x axis and the radius AP.
We define
As you can see, ACD is a right triangle, and so we have
But since we know that AD is the cosine, AC is the sine, and AP is the radius (which is 1, and remains 1 when squared), we have just found out that
