Solve the problem.A wildlife researcher is monitoring a black bear that has a radio telemetry collar with a transmitting range of 30 miles. The researcher is in a research station with her receiver and tracking the bear's movements. If we put the origin of a coordinate system at the research station, what is the equation of all possible locations of the bear where the transmitter would be at its maximum range?
A. x2 + y2 = 60
B. x2 + y2 = 30
C. x2 - y2 = 30
D. x2 + y2 = 900
Answer: D
Mathematics
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Which of the following is not true? ?
A. ?All parallelograms are rectangles. B. ?All rhombuses are parallelograms. C. ?All rectangles are parallelograms. D. ?All trapezoids are quadrilaterals. E. ?All squares are rectangles. F. ?All squares are rhombuses.
Mathematics
Give the symbolic representation for the function f.Function f takes the square root of 15 times x.
A. f(x) = 
B. f(x) = 
C. f(x) = 15
D. f(x) = -15
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 120xy
Mathematics
Solve the problem.A car wheel has a 16-inch radius. Through what angle (to the nearest tenth of a degree) does the wheel turn when the car rolls forward 3 ft?
A. 138.9° B. 143.9° C. 128.9° D. 133.9°
Mathematics