Solve.The population of a town was 33,900 at the beginning of 1970. If the population decreased 300 people per year, how many people lived in the town at the beginning of 1985?
A. 4500
B. 29,100
C. 29,400
D. 29,700
Answer: C
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Add.6.117 + 16.86
A. 22.950 B. 22.977 C. 22.203 D. 23.130
Let A = {6, 4, 1, {3, 0, 8}, {9}}. Determine whether the statement is true or false.{3, 0, 8} ? A
A. True B. False
Solve the problem.Some people must eat a low-sodium diet with no more than 2000 mg of sodium per day. By eating 1 cracker, 1 pretzel, and 1 cookie, a person would ingest 149 mg of sodium. If a person ate 8 pretzels and 8 cookies, he or she would ingest 936 mg of sodium. By eating 6 crackers and 7 pretzels, a person would take in 535 mg of sodium. Which of the following statements is true?
A. A cracker contains 30 mg of sodium. B. A cracker contains more sodium than a cookie C. A pretzel contains 49 mg of sodium. D. A cookie contains 71 mg of sodium.
Solve the problem.Tides go up and down in a 12.4-hour period. The average depth of a certain river is 11 m and ranges from 8 to 14 m. The variation can be approximated by a sine curve. Write an equation that gives the approximate variation y, if x is the number of hours after midnight if high tide occurs at 8:00 am.
A. y = 11 sin (
- 
)
B. y = 3 sin (
- 
)
C. y = 3 sin (
- 
)
D. y = 11 sin (
- 8?)