Answer:
(4,1)
Step-by-step explanation:
x+y=5
x- y=3
Add the equations together to eliminate y
x+y=5
x- y=3
--------------------
2x = 8
Divide each side by 2
2x/2 = 8/2
x = 4
Now we can find y
x+y = 5
4+y = 5
Subtract 4 from each side
4+y-4 = 5-4
y =1
 
        
             
        
        
        
Answer:
Its the third one
Step-by-step explanation:
Plot all of the points onto the graph, and draw a line through all of the points. It most closely resembles the third one
 
        
             
        
        
        
Answer:
Step-by-step explanation:
a) 310cos25 = 281 N
b) (620 - 281) / cos-18 = 356 N
 
        
             
        
        
        
Answer:
a   10 yd   2ft  7 in
b 10 yd  1 ft  2 in
c  99 yd
d.  4840 sq  yd  7 sq ft  119 sq in   
Step-by-step explanation:
a.      2 ft. 5 in. + 
9 yd. 3 ft. 2 in.
---------------------
9 yd   5ft   7 in
but 3 ft = 1yd
9 yd   5ft   7 in
+1yd   - 3ft
---------------------------
10 yd   2ft  7 in
b. 4 yd. 8 in 
+ 6 yd. 6 in.
----------------------
10 yd   14 in
but 12 in = 1ft
10 yd       14 in
      + 1ft   - 12 in
---------------------
10 yd  1 ft  2 in
c. 29 yd. 2 ft. 11 in. 
   55 yd. 1 ft. 10 in. 
 + 13 yd. 1 ft. 3 in.  
--------------------------
97 yd   4 ft   24 in
12 in = 1ft
24 in = 2ft
97 yd   4 ft   24 in
            +2ft    - 24 in
--------------------------------
97 yd   6ft
3 ft = 1yd
6f = 2yd
97 yd   6ft
+2yd   - 6ft
---------------------
99 yd
d. 4,839 sq. yd. 8 sq. ft. 139 sq. in. 
                       + 7 sq. ft. 124 sq. in.
--------------------------------------------------
   4839  sq yd  15 sq ft   263 sq in
12*12 = 144 sq in = 1 sq ft
  4839  sq yd  15 sq ft   263 sq in
                        + 1 sq ft  - 144 sq in
--------------------------------------------------
4839  sq yd  16 sq ft  119 sq in
3ft * 3 ft = 9 sq ft = 1 sq yd
4839  sq yd  16 sq ft  119 sq in
       +1 sq yd  - 9 sq ft
----------------------------------------------
4840 sq  yd  7 sq ft  119 sq in              
 
        
                    
             
        
        
        
I'm assuming that the lower case c and the upper case C are the same variables.
6C^2 + 2.5D - D + 2C^2 - 3D = 8C^2 - 1.5D