Evaluate the expression.-73
A. 21
B. -21
C. -343
D. 343
Answer: C
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Find any numbers for which the rational expression is undefined.
A. x = 9 B. x = 0 C. x = -9 D. none
Solve the equations.2z2 + 3 = 165
A. ±10 B. ±9 C. 9 D. 82.5
Evaluate using a scientific calculator. Express answer rounded to three decimal places.e2.88
A. 17.814 B. 7.829 C. 15.154 D. 17.732
Solve the problem.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__tttt0519191117__f1q44g6.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: 77.2; System 2: 76
B. System 1: 87.3; System 2: 85.5
C. System 1: 69.3; System 2: 101.7
D. System 1: 44.2; System 2: 53
