Discover Questions

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? How can we differentiate between alcohol and ether by chemical tests? There are many different types of fossils in our hypothetical rock layers. What do the majority of these fossils have in common? Find the values of p for which the series is convergent. Sigma infinite on top and n=1 on bottom. n(1+n^2)^p? Derivative of sin(x/2)?