Factor the trinomial, or state that the trinomial is prime.x2 - 6x - 27
A. (x - 3)(x + 1)
B. (x + 3)(x - 9)
C. (x - 3)(x - 9)
D. prime
Answer: B
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Write the binomial expansion of the expression.(3m - 2n)4
A. 81m4 - 3456m3n - 1296m2n2 - 96mn3 - 16n4 B. 81m4 - 3456m3n + 1296m2n2 - 96mn3 + 16n4 C. 81m4 - 216m3n - 216m2n2 - 96mn3 - 16n4 D. 81m4 - 216m3n + 216m2n2 - 96mn3 + 16n4
Solve the equation Ax = b by using the LU factorization given for A.A = 
, b = 
A = 
A. x = 
B. x = 
C. x = 
D. x = 
Solve the problem.A grasshopper is perched on a reed 6 inches above the ground. It hops off the reed and lands on the ground about 6.6 inches away. During its hop, its height is given by the equation 
, where x is the distance in inches from the base of the reed, and h is in inches. How far was the grasshopper from the base of the reed when it was 4.75 inches above the ground? Round to the nearest tenth.
A. 0.9 inches B. 5.0 inches C. 0.6 inches D. 6.6 inches
Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
?
A. x = 1, y = 3, z = 0, w = -3; (1, 3, 0, -3) B. x = -1, y = -3, z = 0, w = 3; (-1, -3, 0, 3) C. x = 1, y = -3, z = 0, w = 3; (1, -3, 0, 3) D. x = -1, y = 3, z = 0, w = -3; (-1, 3, 0, -3)