Write the following using exponents.4 ? 4 ? 4 ? 4 ? 4 ? 4

A. 46
B. 24 
C. 64
D. 45


Answer: A

Mathematics

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A cleaning process is removing salt from a pool. The amount S, in pounds, of salt remaining after t hours is given in the following table. Use exponential regression to determine the amount of salt remaining after 19.82 hours. Round your answer to two decimal places.  t 1.54 5.04 8.82 12.81 15.82 S 20.73 11.71 6.58 3.46 2.92?

A. 4.60 pounds B. 1.54 pounds C. 6.18 pounds D. 2.66 pounds

Mathematics

Evaluate the integral by making a substitution and then using a table of integrals.

A. - 3 ln  + C
B. ln  + x - 3 ln  + C
C. ln  - 3 ln  + C
D. ln  - 3 ln  + C

Mathematics

Provide an appropriate response.Solve the following inequality: 6 - 3(x - 2) ? 3(2x - 5)

Fill in the blank(s) with the appropriate word(s).

Mathematics

Solve the system of equations.

A. x = 3z + 1, and y = z - 3, where z is any real number or {(x, y, z) |x = 3z + 1, and y = z - 3, where z is any real number} B. x = -3 - z, and y = 3z + 1, where z is any real number or {(x, y, z) |x = -3 - z, and y = 3z + 1, where z is any real number} C. x = z + 3, and y = 3z + 1, where z is any real number or {(x, y, z) |x = z + 3, and y = 3z + 1, where z is any real number} D. inconsistent

Mathematics