For the points P and Q, find the distance d(P, Q).P(3, -5), Q(7, -7)
A. 12
B. 12
C. 2
D. 6
Answer: C
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Solve the application problem.A recent advertisement claimed that 2 out of every 7 doctors recommend a certain herbal supplement to increase energy levels. If a local hospital employs 280 doctors, how many doctors would you expect to recommend the supplement? (Round to the nearest whole number, if necessary.)
A. 80 doctors B. 980 doctors C. 3920 doctors D. 40 doctors
Find the nth term of the geometric sequence with the given values.3, -9k, 27k2, . . . ; n = 5
A. -729k5 B. 243k5 C. -729k4 D. 243k4
Translate the phrase into a mathematical expression and then find the result.The quotient of 49 minutes and 7
A. 49 ? 7; 6 minutes B. 49 ? 7; 8 minutes C. 49 ÷ 7; 6 r7 minutes D. 49 ÷ 7; 7 minutes
Based on the graph, find the range of y = f(x).f(x) = 
A. [0, 8]
B. [0, 
]
C. [0, ?)
D. [0, 8)