Determine the period of the function and sketch its graph.y = cos 
A. period: 6
B. period: 6?
C. period: 6
D. period: 3
Answer: C
Mathematics
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Parametrize the surface S.S is the lower portion of the sphere x2 + y2 + z2 = 36 cut by the cone z = 
.
What will be an ideal response?
Mathematics
Solve the equation.3(x - 3)2 - 5(x - 3) - 2 = 0
A. 
, 2
B. 
, 5
C. - 
, 2
D. 
, 1
Mathematics
Convert the measure to its alternate U.S. or metric form. Write improper fractions as mixed numbers for U.S. measures and as decimals for metric measures.Convert 63 meters to yards.
A. 70
yards
B. 25
yards
C. 56
yards
D. 70 yards
Mathematics
Change the polar coordinates (r, ?) to rectangular coordinates (x, y).(4, 225°)
A. (-2
, -2)
B. (-2, -2
)
C. (2
, 2)
D. (2, 2
)
Mathematics