Find the probability.In a certain college, 33% of the physics majors are ethnic minorities. A random sample of 10 physics majors is chosen. Find the probability that 2 or less are ethnic minorities. Round to the nearest ten-thousandth.
A. 0.1080
B. 0.1990
C. 0.2888
D. 0.3070
Answer: D
Mathematics
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Perform the indicated operation.(-7 - 5x6 + 5x8 - 5x7) + (-2x7 - 8x6 + 6 + 2x8)
A. -13x42 - 1 B. -9x8 - 9x7 + 11x6 - 3 C. 7x16 - 7x14 - 13x12 - 1 D. 7x8 - 7x7 - 13x6 - 1
Mathematics
Perform the addition.4.7 + 8.29
A. 13.09 B. 3.59 C. 12.99 D. -3.59
Mathematics
Solve the equation by multiplying by a power of 10.0.9x + 0.94(4 - x) = 3.68
A. {-2} B. {0.02} C. {2} D. {-0.02}
Mathematics
Solve the equation by finding an expression for the determinant on the left, and then solving using the appropriate method.
= -2
A. ? B. {-2} C. {-1} D. {2}
Mathematics