What is the vertex of the graph of this equation y= -4x^2-16x-12 a. (2,-4)
b. (-2,-4)
c. (-2.4)
d. (2,4)

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f

If a is a nonzero real number then the reciprocal of a is