Answer:
a.12/13
Step-by-step explanation:
- FORMULA: sine of an angle in a triangle is given by,  
- here, in the given triangle PQR, for angle 'p'
opposite side= QR
adjacent side= PQ
hypotenuse=PR
-  Therefore, sine of angle p=  
- Thus, by using the above given formula, the sine of angle p in the triangle PQR is 12/13.
- hence, the trigonometric formulas as mentioned above should be remembered for sure to solve these type of problems
 
        
             
        
        
        
Step-by-step explanation:
3x + 2y = 12
2y = 12 - 3x
y = 6 - 3/2 x
so, it is a regular line, not horizontal, not vertical.
the easiest way to graph it is to find the 2 intercepts at the x- and at the y-axis (setting x = 0 gives us the y value for the y-axis intercept, setting y = 0 gives us the x value for the x-axis intercept).
then use a ruler and draw a line through both points and well beyond these 2 points.
x = 0
3×0 + 2y = 12
2y = 12
y = 6
point (0, 6)
y = 0
3x + 2×0 = 12
3x = 12
x = 4
point (4, 0)
 
        
             
        
        
        
Answer:
   310°
Step-by-step explanation:
The sum of arcs around a circle is 360°.
   MPN +MN = 360°
   MPN = 360° -MN . . . . . . . . subtract MN
   MPN = 360° -50° = 310° . . . fill in the given value
The measure of major arc MPN is 310°.
 
        
             
        
        
        
The answer is D $126,if three cost $54 that means one costs $18 and just multiply it with seven