Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. 3
B. 
C. 
D. 1
Answer: D
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Use the given transformation to evaluate the integral.
Rwhere R is the interior of the ellipsoid 
A. 224?
B. 168?
C. 
?
D. 112?
List all the elements of B that belong to the given set.B = {7, 
, -8, 0, 
, - 
, 7.7, 
}Counting numbers
A. 
B. {7, 0}
C. {-8, 0, 7}
D. 
Determine the real zeros of the polynomial and their multiplicities. Then decide whether the graph touches or crosses the x-axis at each zero.f(x) = 2(x - 7)(x - 2)3
A. -7, multiplicity 1, touches x-axis; -2, multiplicity 3 B. 7, multiplicity 1, crosses x-axis; 2, multiplicity 3, crosses x-axis C. -7, multiplicity 1, crosses x-axis; -2, multiplicity 3, crosses x-axis D. 7, multiplicity 1, touches x-axis; 2, multiplicity 3
Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1