- How much louder is 70dB city traffic than 110dB front row at a rock concert sound?

Discover Questions

What is the surface area of a cylinder with holes in the side? How can we differentiate between alcohol and ether by chemical tests? The function f is f(x)= (x+4)(x-a), the graph of f is a parabola , a is const. The x coord. is b/w 1 and 3, which is a?
A. -2
B. 1
C. 5
D. 9? What does the sun and a crescent moon together mean? What is the cartesian form for sqrt(e ^ipi/3?