Find the probability of the event.On a hospital floor, 16 patients have a disease with a mortality rate of 0.1. Two of them die.
A. 0.163
B. 0.275
C. 0.666
D. 0.170
Answer: B
Mathematics
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Simplify.
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A. 
B. 
C. 
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Mathematics
Solve the problem.The perimeter of a triangle is 70 cm. The triangle is isosceles now, but if its base were lengthened by 7 cm and each leg were shortened by 4 cm, it would be equilateral. Find the length of the base of the original triangle.
A. 15 cm B. 16 cm C. 23 cm D. 27 cm
Mathematics
Solve the equation.-8.4 + 3x - 6.7 + 4x - 2.2 = 5.7 + 8x + 1.2
A. {-10.4} B. {24.2} C. {10.4} D. {-24.2}
Mathematics
Provide an appropriate response.List all negative integer pairs that have a product of 12.
A. -3, -4 B. -1, -12; -2, -6; -3, -4 C. -2, -6; -3, -4 D. -1, -12
Mathematics