If ?A'B'C' is the image of ?ABC under a transformation and ?ABC ? ?A'B'C', then the transformation is NOT
(a) an isometry.
(b) a similitude.
(c) a reflection.
(d) a rotation.
(e) a translation.
(b) a similitude.
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Solve the problem.A region in the first quadrant is bounded above by the curve y = cosh x, below by the curve 
on the left by the y-axis, and on the right by the line 
Find the volume of the solid generated by revolving the region about the x-axis.
A. 5?
B. 0
C. 2?
D. 
Completely factor the polynomial or state that the polynomial is prime.x3 - 729
A. (x - 9)(x2 + 81) B. (x + 9)(x2 - 9x + 81) C. (x + 729)(x2 - 1) D. (x - 9)(x2 + 9x + 81)
Identify a method whereby a random sample can be selected from the population.The Village Church of Lake Heights wants to find out what percentage of senior citizens over 65 are satisfied with the services of the church. There are 512 registered senior citizens in the church and the Church want to select 40 of these senior citizens at random. Those in the sample will be asked how they feel about the church services.
A. Obtain an alphabetical listing of the senior citizens that have not attended services in the last 6 months. Assign each person a number. Use a random number generator to obtain 40 random numbers within the range of these numbers and use these numbers to identify the senior citizens to be included in the sample. B. Obtain an alphabetical listing of the senior citizens and assign each person a number between 1 and 512. Use a random number generator to obtain 40 random numbers between 1 and 512 and use these numbers to identify the senior citizens to be included in the sample. C. Choose every 10th senior citizen leaving the next church service until a sample of 40 is obtained.
Solve the problem.In a wallpaper pattern, the only possible angle(s) of rotational symmetry are the identity and
A. 60°, 90°, 180°. B. 180°. C. 60°, 90°, 120°, 180°. D. 90°, 180°. E. none of these