Step-by-step explanation:
How to find x:
tan(45)= 5/x
x = 5/tan(45) [Find on calculator]
How to find y:
Pythagoras' theorem:
a² + b² = c²
5² + x² [value found in first part] = y²
Square root the sum of 5² + x² and the y²
The answer of the square root of the sum is the value of y
Answer:
All have exactly one solution
Step-by-step explanation:
a) -13x + 12 = 13x - 13
+13x +13x
-------------------------------
12 = 26x - 13
+13 +13
-------------------
25 = 26x
----- ------
26 26
25/26 = x
b) 12x + 12 = 13x - 12
-12x -12x
-----------------------
12 = x - 12
+12 +12
-----------------
24 = x
c) 12x + 12 = 13x + 12
-12x -12x
-----------------------------
12 = x + 12
0 = x
d) -13x + 12 = 13x + 13
+13x +13x
-----------------------------
12 = 26x + 13
-13 -13
-----------------------
-1 = 26x
--- -----
26 26
-1/26 = x
Well I think it's c+m=152
Answer:
x-(x+5)
Step-by-step explanation: