The answer is A: 1 coil in a spring that is 7 inches long
i am not sure so correct me if i am wrong
hope this helps
Answer:
16x^2+36x-10
Step-by-step explanation:
2 (4x - 1)(2x + 5)
=2(8x^2-2x+20x-5)
=2(8x^2+18x-5)
=16x^2+36x-10
Answer:
7.4cm
Step-by-step explanation:
diameter =2radius
=2×4.7
=7.4cm