Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.-2431/5
A. -27
B. -3
C. 243
D. 81
Answer: B
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Solve the equation 
for z.
?
A. There is no solution.
B. ?
C. 
D. ?
Use the REGRESSION feature on a graphing calculator.Since 1984 funeral directors have been regulated by the Federal Trade Commission. The average cost of a funeral for an adult in a Midwest city has increased, as shown in the following table. 
Let x represent the number of years since 1980. Use a graphing calculator to fit a quartic function to the data. Round your answer to five decimal places.
A. y = -2.047489x2 + 212.82699x + 1879.85469 B. y = -0.04268x4 + 1.53645x3 - 16.76289x2 + 231.82723x + 1927.58518 C. y = 170.5971x + 1991.5213 D. y = -0.04268x4
Combine like terms whenever possible. Write the result with descending powers.2x4 + 8x4 - 4x4
A. 6x12 B. 6x4 C. Cannot be simplified D. -64x4
Use the area of the given parallelogram, the specified base or height, and the appropriate formula to find the requested measurement.The height is 8 ft, and the area is 112 ft2. Find the base.
A. 12 ft B. 14 ft C. 16 ft D. 21 ft