Perform the indicated operations and write the result in standard form.
(7 - 
)
A. 28i - 12i2
B. 12 + 28i
C. 28i - 12
D. 28i + 12i2
Answer: B
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Evaluate the expression using exponential rules. Write the result in standard notation.
A. 500 B. -0.05 C. -500 D. 0.05
Classify the following as the equation of a parabola, a circle, an ellipse, or a hyperbola.4x2 + 16y2 - 64 = 0
A. Circle B. Hyperbola C. Ellipse D. Parabola
Solve the problem.In the formula A = Iekt, A is the amount of radioactive material remaining from an initial amount I 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 74% of the carbon-14 it originally contained, what is the approximate age of the artifact? (carbon-14 decays at the rate of 0.0125% annually.) (Round to the nearest year.)
A. 2409 yr B. 2080 yr C. 1046 yr D. 5920 yr
Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
+ 