Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula , as needed.Find the [H3O+] if the pH = 2.3.

A. 2.7 × 101
B. 5.0 × 10-3
C. 2.0 × 102
D. 3.6 × 10-1


Answer: B

Mathematics

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Integrate the given expression. dx

A.  -  + C
B. -  +  + C
C. -  -  + C
D.  +  + C

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Solve the problem.The appliance store where the Scott family shops offers a 7% discount for paying cash. The Scott family received a discount of $50. What was their total bill before the discount?

A. $714.29 B. $7.14 C. $3.50 D. $350.00

Mathematics

Solve the problem.In a science experiment, Stephen collected data which formed the sequence: 0.0435, 0.0465, 0.0495, 0.0525, 0.0555, 0.0585, 0.0615, 0.0645, 0.0675, 0.0705Is this sequence arithmetic? If so, what is the common difference?

A. Yes; 0.003 B. Yes; 0.004 C. Yes; 0.0032 D. No

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Find the sixth term in the pattern.

2, 2, 4, 6, 10, ... a.  60 b.  15 c.  14 d.  16

Mathematics