The rectangular coordinates of a point are given. Express the point in polar coordinates with 
and 
(3, 3)
A. (3, 90°)
B. (3
, 135°)
C. (3, 45°)
D. (3
, 45°)
Answer: D
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Solve the problem.Find the scalar projection of u = 4i + 5j on v = i + j.
A. 9
B. 
C. 
D. - 
Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial.-14x-3
A. Monomial; variable x; coefficient 3; degree -14 B. Monomial; variable x; coefficient -14; degree -3 C. Monomial; variable x; coefficient -14; degree 3 D. Not a monomial
Write the expression in standard form. Do not use a calculator.(7i)(1 - i)
A. 7i - 7 B. 7 - 7i C. 7i + 7 D. 7 + 7i
Use the sign diagram for 
to determine the largest interval on which f (x) decreases, where 
and 
align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_0dae2064b7514846bc8a67b47" />.
A. 
B. 
C. 
D. 
E. 