Find all points (x, y) where f(x, y) = x3 - y2 - 3x + y + 5 has a possible relative maximum or minimum.Enter your answer exactly as just (a, b), (c, d) with a > c and where a, b, c, d are either integers or reduced fractions of form 
.
What will be an ideal response?
, 
Mathematics
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Find the reference angle for the given angle.388°
A. 28° B. 118° C. 62° D. 152°
Mathematics
Use the frequency polygon to answer the following.The frequency polygon shows the salaries of employees of a small company.
The greatest number of employees are in which salary group?
A. $50,000-$60,000 B. $30,000-$35,000 C. $50,000-$55,000
Mathematics
?Compare dy and ?y for 
at ?x? = 1 with ??x? = dx = -0.09. Give your answers to four decimal places.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Refer to the illustration. Find 
if 
and 
data-wiris-created="true" varid="variable_id_field" variablename="impvar_45720ed5f15d40cb8b0a3d2ec" />.
?
?
A. 2
B. 
C. 
D. 6
E. 
Mathematics