Answer:
initial speed: 240 m/h
Step-by-step explanation:
48 m/h is the current speed which is the 20% of X
x (20 / 100) = 48
20x = 4800
x = 4800/20
x = 240 m/h
Answer:
6.4 cm
Step-by-step explanation:
Area of triangle = 17.28 cm²

Answer:
B.
Step-by-step explanation:
The absolute value of 0 is 0 so 0 = 0 is true.
Answer:
19
Step-by-step explanation:
-8+8=0
0+19=19
Hope it helps.
Answer:
Step-by-step explanation:
-2x²=-8x+8 means : -2x²+8x-8
the discrinant of the quadratic equation is : delta = b²-4ac
when a=-2 and b=8 and c= -8
calculate delta = (8)²-4(-2)(-8) ......continu