4. A particle moves along the x - axis so that at any time t> 0 its velocity is given by the function v(t) = 12 In(t + 2). What is the acceleration of the particle at time t= 6?
A. 1.500
B. 20.453
C. 29.453
D. 74.860
E. 133.417

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

What is the value of x? enter your answer in the box. (cm)

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais