Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Two marbles are drawn from a bag in which there are 4 red marble and 2 blue marble. The number of blue marbles is counted.

A.

B.

C.

D.


Answer: D

Mathematics

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Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.

A. function domain: all real numbers range: {y|y = 2 or y = -6} intercept: (0, -6) symmetry: none B. function domain: all real numbers range: all real numbers intercept: (0, -6) symmetry: none C. function domain: {x|x = 2 or x = -6} range: all real numbers intercept: (-6, 0) symmetry: x-axis D. not a function

Mathematics

Decompose into partial fractions.

A.  + 
B.  + 
C.  + 
D.  + 

Mathematics

Write decimal as a percent.2

A. 0.2% B. 100% C. 200% D. 0.02%

Mathematics

The power, in watts, dissipated as heat in a resistor varies jointly with the resistance, in ohms, and the square of the current, in amperes. A 15-ohm resistor carrying a current of 1 ampere dissipates 15 watts. How much power is dissipated in a 30-ohm resistor carrying a current of 5 amperes? ? __________ watts

Fill in the blank(s) with the appropriate word(s).

Mathematics