If AB ? BC and PQ ? QR, then
(a) ?BAC ? ?BCA.
(b) ?ABC ? ?PQR.
(c) ?QPR ? ?QRP.
(d) All of these are valid conclusions.
(e) Both (a) and (c) are correct.
(e) Both (a) and (c) are correct.
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Use spherical coordinates to find the volume of the indicated region.the region enclosed by the sphere 
and the cylinder 
A. 
(3? - 4)
B. 
(3? - 4)
C. 
(3? - 4)
D. 
(3? - 4)
Determine whether or not one or more pairs of twin primes exist between the pair of numbers given. If so, identify the twin primes.35 and 51
A. No B. 41, 43 C. 43, 47 D. 41, 42 and 47, 49
Solve. Graph the solution on a number line, and express it in interval notation.5x + 11 ? -25
or
5x + 11 ? 25
A. x ? - 
or x ? 
, 
? 
B. - 
? x ? 
, 
C. -8 ? x ? 2, [-8, 2]
D. x ? -8 or x ? 2, (-?, -8] ? [2, ?)
Solve.Write the equivalent decimal and percent for 
.
A. 0.003
; 
%
B. 0.003
; 
%
C. 0.03
; 3
%
D. 0.3
; 33
%