Answer:
C:40
Step-by-step explanatio:
c²=h²-c²
c²=58²-42²
√c²= √3364- 1764
C=√1600
c=40
-6x +10x= 4x
Step-by-step explanation:
-2x(3 - 5x)
x=20
x - 5 = 15
x +5 = +5
x = 20
