Use substitution to determine whether the system of linear equations has no solutions, one solution, or infinitely many solutions. x - 2y = 52x - 4y = 18
A. One
B. Infinitely many
C. No solutions
Answer: C
Mathematics
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Solve the problem.Find the future value (to the nearest dollar) of the following inflation-adjusted retirement account. Deposits are made at the end of each year.
A. $250,724 B. $264,653 C. $232,152 D. $220,544
Mathematics
Find the area of the trapezoid.
A. A = 345 cm2 B. A = 45 cm2 C. A = 161 cm2 D. A = 225 cm2
Mathematics
Multiply and simplify. Assume that all variables represent positive real numbers.2
(
+ 
)
A. 2
+ 5
B. 2
+ 5
C. 10
+ 10
D. 2
+ 10
Mathematics
Find an equation for the ellipse described.Vertices at (-7, 5) and (-1, 5); focus at (-6, 5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics