Answer:
12.1244 cm
Step-by-step explanation:
14²-7²=147
Square root of 174
Answer: it will take 7 seconds
Step-by-step explanation: 9 x 7 = 63
Area of trapeze= (B+b):2×h
Therefore : (7+10):2×4=34
Good luck!
0.4 x + 3.9 = 5.7
hope 0.4 x = 5.78 - 3.9
0.4x = 1.88
x = 1.88/0.4
x = 4.7
