Find a rectangular equation for the plane curve defined by the parametric equations.x = 7 sin t, y = 7 cos t; 0 ? t ? 2?
A. y = x2 - 9; for x in -2 ? x ? 2
B. y2 - x2 = 49; for x in -? < x < ?
C. x2 + y2 = 49; for x in -7 ? x ? 7
D. y = 
= 49; for x in -? < x < ?
Answer: C
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Use the table of values of f to estimate the limit.Let f(x) = 
, find 
f(x).
A. 
; limit = -0.25
B. 
; limit = 0.15
C. 
; limit = 0.25
D. 
; limit = 0.35
Determine whether the argument is valid or invalid. You may compare the argument to a common form, if applicable, or use a truth table.You get soup or you get salad.You did not get soup. ? You got salad.
A. Valid B. Invalid
Find possible value(s) of ? in the interval [0°, 360°) with the given trigonometric function value.tan ? = 1
A. 225°; 315° B. 45°; 225° C. 45°; 315° D. 135°; 225°
Write an inequality to describe the half-space consisting of all points to the left of a plane parallel to the xz-plane and 11 units to the right of it.
What will be an ideal response?