Solve using the substitution method. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this.5x - 2y = -1 x + 4y = 35
A. (3, 8)
B. (2, 8)
C. (3, 9)
D. (2, 9)
Answer: A
Mathematics
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Graph the function.A satellite is orbiting the earth such that its displacement D north of the equator (or south if D < 0) is given by 
. Sketch two cycles of D as a function of t. Use 
Label the point on the horizontal which represents the end of the second cycle.
A. 
B. 
C. 
D. 
Mathematics
Identify the sequence as arithmetic, geometric, or neither.6, 8, 12, 18, 26, . . .
A. Geometric B. Neither C. Arithmetic
Mathematics
Determine if the type of relation is linear, nonlinear, or none.
A. linear B. none C. nonlinear
Mathematics
Simplify.
? 
A. 
B. 7
C. 7
D. 18
Mathematics