Express the number in scientific notation.0.0000004
A. 4 × 10-6
B. 4 × 10-8
C. 4 × 10-7
D. 4 × 10-9
Answer: C
Mathematics
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Multiply by using the rule for the square of a binomial.
2
A. 9x2 - 
x + 
B. 9x2 - 2x - 
C. 9x2 - 2x + 
D. 9x2 - 
Mathematics
Write the equation of the graph after the indicated transformation(s). The graph of y = x2 is shifted 3 units to the left. This graph is then vertically compressed by a factor of 
and reflected across the x-axis. Finally, the graph is shifted 7 units downward.
A. y = - 
(x - 3)2 - 7
B. y = 
(x - 3)2 - 7
C. y = - 
(x + 3)2 - 7
D. y = - 
(x - 3)2 + 7
Mathematics
Solve.12.891 + m = 26.657
A. 11.796 B. 13.759 C. 13.766 D. 13.856
Mathematics
Add or subtract by first simplifying each radical (if needed) and then combining any like radical terms.
+ 
A. 8
B. 7
C. 8
D. 7
+ 3
Mathematics