Give the numerical coefficient of the term.11k2
A. 121
B. 2
C. 11
D. 22
Answer: C
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Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the hydrogen ion concentration if the
A. 3.98 x 10-9 B. 2.51 x 10-9 C. 2.51 x 10-8 D. 3.98 x 10-8
Perform the indicated operation. Write the answer without exponents.(4 × 102) × (8 × 104)
A. 320,000,000 B. 32,000,000 C. 3,200,000,000 D. 3,200,000
Graph the system of inequalities.x - 2y ? 2 x + y ? 0
A.
B.
C.
D.
Answer the question.Describe how the graph of y = (x + 4)2 may be obtained from the graph of y = x2.
A. Shift 4 units to the right. B. Shift 4 units to the left. C. Shift 4 units up. D. Shift 4 units down.