Completely factor the polynomial or state that the polynomial is prime.x4 - 2x2 - 35
A. (x2 - 7)(x2 + 5)
B. prime
C. (x2 + 7)(x2 + 1)
D. (x2 + 7)(x2 + 5)
Answer: A
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Solve the problem.Let u = 2i + 4j, v = 2i + 3j, and w = i - j. Write u = u1 + u2 where u1 is parallel to v and u2 is parallel to w.
A. u1 = 3v u2 = 2w B. u1 = 0.8333 v u2 = -2.500w C. u1 = 4v u2 = -12w D. u1 = 1.200 v u2 = -0.4000w
Determine whether the given point lies on the line.(4, 4); y - 12 = -2x
A. Yes B. No
Solve the problem using matrices.The final grade for an algebra course is determined by grades on the midterm and final exam. The grades for four students and two possible grading systems are modeled by the following matrices. src="https://sciemce.com/media/4/ppg__tttt0518191431__f1q86g6.jpg" style="vertical-align: -15.0px;" />Find the final course score for Student 3 for both grading System 1 and System 2.
A. System 1: 44.2; System 2: 53
B. System 1: 85; System 2: 83
C. System 1: 77.2; System 2: 76
D. System 1: 67.4; System 2: 98.6
Wavelength. In physics, a wave is a disturbance that transfers energy through matter or space. A wavelength depends directly on the period of wave. The scientist has a mechanical wave of length 672 m with a period of 48 s. If the period becomes equal to 10 seconds, what will the length of the wave be equal to?
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