Solve using matrices.9x + 2y = -13x - 3z = -64y - 3z = 6
A. 
B. 
C. 
D. 
Answer: B
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Graph the radical function. Compare the graph to that of the square root function or cube root function.H(x) = -3
A. It looks like the graph of the square root
function, but it is stretched by a factor of 3
and reflected over the x-axis.
B. It looks like the graph of the square root
function, but it is stretched by a factor of 3
and reflected over the x-axis.
C. It looks like the graph of the square root
function, but it is stretched by a factor of 3.
D. It looks like the graph of the cube root
function, but it is stretched by a factor of 3.
Simplify the expression. If necessary, express the result that is not a rational number as a decimal rounded to two decimal places.-9
- 
A. - 
B. 
C. - 
D. 
Identify the figure and name it using the labels shown.
A. point W
B. ?W
C. ray W, or 
D. line W, or 
Solve. Write results using scientific notation.Assume that the volume of the earth is 4.2 x 1014 cubic meters and the volume of a bacterium is 3.4 x 10-16 cubic meters. If the earth could be filled with bacteria, how many would it contain?
A. 1.24 x 1030 bacteria B. 1.24 x 10-30 bacteria C. 1.24 x 1031 bacteria D. 1.24 x 10-31 bacteria