5v-u=-2 and –v+9u=18, then the simultaneous solution of the given equation is:

a. u=3, v=9
b. u=2, v=0
c. u=1, v=-9
d. u=-2, v=-36
e. u=3, v=-15

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

Graph each quadratic function and identify its key characteristics. f(x) = x^2 - 2x - 3

Arectangle has a perimeter of 20 cm. the length, x cm, of one side of this rectangle is uniformly distributed between 1 cm and 7 cm. find the probability that the length of the longer side of the rectangle is more than 6 cm long.