Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial.7xy6
A. Monomial; variables x, y; coefficient 7; degree 2
B. Monomial; variables x, y; coefficient 7; degree 1
C. Monomial; variables x, y; coefficient 7; degree 3
D. Not a monomial
Answer: C
Mathematics
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A. a + s B. -a + s C. -1 D. -a - s
Mathematics
Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500
Mathematics
Solve the problem.Sixteen pounds of a radioactive substance loses one fourth of its original mass in 2 days. The mass m(t) remaining at time t is given by:
A. m(t) = 16e0.693t B. m(t) = 4e-0.693t C. m(t) = 16e-0.693t D. m(t) = 16e0.144t
Mathematics
Simplify the expression.
Mathematics