Find the value(s) of the variable for which the rational expression is undefined.
A. 49
B. 7
C. 7, -7
D. 
Answer: C
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 0 for r(t) = t2i + (8t3 - 10)j + 
k
A. a(0) = 2i + 
k
B. a(0) = 2i - 
k
C. a(0) = 2i - 
k
D. a(0) = 2i - 
k
Mathematics
Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.(B ? A) ? B
A. True B. False
Mathematics
Add: 11/15 + 5/15
a. 8/15 b. 33/15 c. 16/15 d. 14/30 e. 33/225
Mathematics
Find all complex zeros of the polynomial function. Give exact values. List multiple zeros as necessary.f(x) = x4 - 10x3 + 23x2 - 10x + 22
A. i, -i, 1 + 
, 1 - 
B. i, -i, 5 + 2
, 5 - 2
C. i, -i, -5 + 
, -5 - 
D. i, -i, 5 + 
, 5 - 
Mathematics