Solve using Cramer's rule, if possible. If it is not possible, state whether the system is inconsistent or has infinitely many solutions.
A. (5, 4)
B. (-5, -4)
C. (4, 5)
D. (-4, 5)
Answer: A
Mathematics
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Multiply.(5
+ 
)(5
- 
)
A. 25x - 2
- y
B. 25x2 - y2
C. 25x + y
D. 25x - y
Mathematics
Find the least common multiple of the given number by the method of intersection of sets of multiples.84 and 378
A. 2268 B. 1512 C. 756 D. 42
Mathematics
Add or subtract. Express the answer as a mixed number.15 - 5
A. 14
B. 9
C. 10
D. 10
Mathematics
Use a table of values to graph the plane curve defined by the following parametric equations. Find a rectangular equation for the curve.x = 5 tan t, y = 2 sec t, for t in [0, 2?] 
A. 
- 
= 1, for x in (-?, ?)
B. 
+ 
= 1, for x in (-?, ?)
C. 
y = x2 - 9, for x in [-3, 3]
D. 
y = 2
, for x in (-?, ?)
Mathematics