Use technology to solve the system.0.9x - 0.3y = -3.30.7x + 0.7y = 2.1
A. (-2, 17)
B. (-2, 5)
C. (-1.7, 5.9)
D. (-1.7, 17)
Answer: B
Mathematics
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Find the indicated probability.The table below describes the smoking habits of a group of asthma sufferers.
If one of the 1129 people is randomly selected, find the probability that the person is a man or a heavy smoker. Round your answer to three decimal places.
A. 0.561 B. 0.597 C. 0.556 D. 0.516
Mathematics
Find the median of the list of data.0 , 0, 4, 6, 0 , 0, 4, 6, 9
A. 4 B. 8 C. 5 D. 6 E. 7
Mathematics
Identify whether the equation, when graphed, will be a parabola, circle, ellipse, or hyperbola.y = x2 - 4
A. parabola B. circle C. ellipse D. hyperbola
Mathematics
Find the standard deviation for the given data items. Round to 2 decimal places.10, 11, 12, 13, 14
A. 1.58 B. 0 C. 2.5 D. 1.25
Mathematics