Use cross products to determine whether the pair of fractions is equivalent.
and 
A. equivalent
B. not equivalent
Answer: A
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Simplify. Assume that all variables represent positive numbers.
A. 
B. 
C. 
D. 
Solve the problem.In the formula A(t) = A0ekt, A(t) is the amount of radioactive material remaining from an initial amount A0 at a given time t and k is a negative constant determined by the nature of the material. An artifact is discovered at a certain site. If it has 51% of the carbon-14 it originally contained, what is the approximate age of the artifact, rounded to the nearest year? (carbon-14 decays at the rate of 0.0125% annually.)
A. 4080 yr B. 3920 yr C. 2339 yr D. 5387 yr
Graph the function.y = 4 csc 
A. 
B. 
C. 
D. 
Classify the polynomial as constant, linear, quadratic, cubic, or quartic, and determine the leading term, the leading coefficient, and the degree of the polynomial.f(x) = 6x2 - 11 + 0.14x - 8x3
A. Constant; -11; -11; 1 B. Cubic; x3; -8; 3 C. Quadratic; 6x2; 6; 2 D. Cubic; -8x3; -8; 3