Solve the system of equations by the substitution method.

A. (0, 9)
B. infinite number of solutions
C. (5, -6)
D. no solution


Answer: B

Mathematics

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Graph the function. Determine the symmetry, if any, of the function.y = 

A. Symmetric about the origin

B. Symmetric about the origin

C. Symmetric about the origin

D. No symmetry

Mathematics

Find a linear model for the following data table. Round your answer to two decimal places, if necessary.  x 2 3 4 5 y 5 11 17 23?

A.
B. ?
C. ?
D. ?

Mathematics

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

Mathematics

Determine whether the graph represents a linear function.

A. No B. Yes

Mathematics