Find the equation for the plane tangent to the parametrized surface S at the point P.S is the sphere r(?, ?) = 2 cos ? sin ?i + 2 sin ? sin ?j + 2 cos ?k; P is the point corresponding to 
What will be an ideal response?
Answers will vary. One possibility is x + 
y + 2z = 4
Mathematics
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Use a graphing calculator to solve the equation to the nearest tenth.3x2 - 8x - 9 = 0; x between 3 and 4
A. 3.5 B. 3.4 C. 3.7 D. 3.6
Mathematics
Evaluate the expression.
A. -36 B. -9 C. 9 D. 81
Mathematics
Determine whether the variation model below is of the form 
or 
.
x
12
24
36
48
60
y
?
?
?
?
A.
B.
Mathematics
Use a determinant and the given vertices of a triangle to find the area of the triangle.
?
?
A. ?
B. 4
C. ?
D. 
E. 7
Mathematics