Solve the problem.pH = -log10[H+] Find the pH if the [H+] = 9.8 × 10-5.

A. 5.01
B. 4.01
C. 5.99
D. 4.99


Answer: B

Mathematics

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Solve the problem. Round to the nearest cent.Linda Young bought a new computer system. To pay for the system, she borrowed  from the credit union at 6% simple interest for 75 days. Find the interest owed. (Use a 365 day year.)

A. $128.01 B. $32.00 C. $26.30 D. $25.77

Mathematics

Solve the problem.An insurance company has written 80 policies of $50,000, 474 of $25,000, and 926 of $10,000 on people of age 20. If the probability that a person will die at age 20 is .001, how much can the company expect to pay during the year the policies were written?

A. $2511 B. $25,110 C. $251,100 D. $0

Mathematics

The following graph shows the populations of the metropolitan areas of City X and City Y over six years. Use the terms increasing, decreasing, and/or constant to describe the trends for the population of the City X metropolitan area.

A. The population of the City X metropolitan area was decreasing from Year 1 to Year 6. B. The population of the City X metropolitan area was decreasing from Year 1 to Year 5 and was constant from Year 5 to Year 6. C. The population of the City X metropolitan area was increasing from Year 1 to Year 6. D. The population of the City X metropolitan area was increasing from Year 1 to Year 5 and was constant from Year 5 to Year 6.

Mathematics

Find the first six terms of the sequence.a1 = 3, a2 = 4; for n ? 3, an = an-1 + an-2

A. 3, 4, 6, 9, 12, 15 B. 3, 4, 7, 8, 11, 11 C. 3, 4, 7, 11, 18, 29 D. 3, 4, 12, 48, 576, 27,648

Mathematics