Solve the problem.The population of a town was 32,500 at the beginning of 1970. If the population decreased 250 people per year, how many people lived in the town at the beginning of 1985?
A. 3750
B. 29,000
C. 28,750
D. 28,500
Answer: C
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Solve.Two LORAN stations are positioned 208 miles apart along a straight shore. A ship records a time difference of 0.00086 seconds between the LORAN signals. (The radio signals travel at 186,000 miles per second.) Where will the ship reach shore if it were to follow the hyperbola corresponding to this time difference? If the ship wants to enter a harbor located between the two stations 19 miles from the master station, what time difference should it be looking for?
A. 80 miles from the master station, 0.000914 seconds B. 24 miles from the master station, 0.000914 seconds C. 80 miles from the master station, 0.000457 seconds D. 24 miles from the master station, 0.000457 seconds
Find the probability of the event if a single choice is made from a bag.A bag contains 7 red marbles, 6 blue marbles, 5 yellow marbles, and 3 green marbles. What is the probability of choosing a yellow or green marble when one marble is drawn?
A. 
B. 
C. 
D. 
Factor out the GCF.96m8n + 84m5n2 + 36m2n
A. 12m2n(8m6 + 7m3n + 3) B. 12n(8m8 + 7m5n+ 3m2) C. 12m8n2(8n + 7m3 + 3m6n) D. m2n(96m6 + 84m3n + 36)
Simplify using the product-to-power rule.(rs)8
A. r8s8 B. 8rs C. r9s9 D. rs8