Factor completely.9a3 - 16a
A. a(3a - 4)2
B. a(9a + 1)(a - 16)
C. (3a2 + 4)(3a - 4)
D. a(3a + 4)(3a - 4)
Answer: D
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Obtain the Cartesian equation of the curve by eliminating the parameter.x = 4
, y = 8
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Multiply.
A. 50 B. 40 C. 70 D. 60
Solve the problem.Graph 1 is connected and every edge is a bridge. Graph 2 is such that for any pair of vertices in the graph there is one and only one path joining them.
A. Graph 1 must be a tree; Graph 2 must be a tree. B. Graph 1 cannot be a tree; Graph 2 cannot be a tree. C. Graph 1 must be a tree; Graph 2 may or may not be a tree. D. Graph 1 must be a tree; Graph 2 cannot be a tree. E. none of these
Find the requested long-range probabilities based on the transition matrix or data given.Weather is classified as sunny or cloudy in a certain place. The probability that it will be sunny on a given day depends on whether it was sunny the previous day. The transition matrix is given below. Find the long-range prediction for the proportion of sunny and cloudy days. SunnyCloudy 
A. [0.760 0.240] B. [0.667 0.333] C. [0.333 0.667] D. [0.800 0.200]