Translate into an equation and solve. Thirteen equals nineteen less than the product of eight and a number. Find the number.
A) 1
B) 4
C) –2
D) –1
E) 2
B) 4
Mathematics
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Multiply. Simplify the answer completely.
? 
? 
A. - 
B. - 
C. 
D. - 
Mathematics
Change the given polar coordinates (r, ?) to Cartesian coordinates (x, y).
A. (5
, 5)
B. (10
, 10
)
C. (10, 10)
D. (5
, 5
)
Mathematics
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.84x = 2.4
A. {0.08} B. {1.68} C. {0.11} D. {1.60}
Mathematics
For the following functions, use linearization and the values of 
at a b to estimate z (x, y) .
Mathematics