Answer the question.Let int S be the set of all interior points of S, and let cl S be the closure of S (S ? the set of all boundary points of S). Which of the following statements are true?I: If S is convex, then int S is convex.II: If S is convex, then cl S is convex.
A. Both I and II
B. Neither I or II
C. II
D. I
Answer: A
Mathematics
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Find the intersection.-2x + 7y = -8, 2y + 2z = 6
A. x = 14t - 58, y = 4t + 6, z = -4t
B. x = 14t + 
, y = 4t + 3, z = -4t
C. x = 14t - 
, y = 4t - 3, z = 4t
D. x = 14t + 
, y = 4t + 3, z = -4
Mathematics
Write a chain rule formula for the following derivative.
for z = f(r, s); r = g(t), s = h(t)
A. 
= 
+ 
B. 
= 
+ 
C. 
= 
D. 
= 
+ 
Mathematics
Perform the matrix operation.Given A = 
and B = 
, find 2A + 3B.
A. 
B. 
C. 
D. 
Mathematics
Write the ratio as a fraction in lowest terms.
A. 
B. 
C. 
D. 
Mathematics