Solve the system using matrices. x + 7y = -23x + y = 34
A. (3, 7)
B. (-2, 3)
C. (7, 12)
D. (12, -2)
Answer: D
Mathematics
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Let A = {1, 3, 5, 7}, B = {5, 6, 7, 8}, C = {5, 8}, D = {2, 5, 8}, and U = {1, 2, 3, 4, 5, 6, 7, 8}. Decide if the set relationship is true or false.{0} ? U
A. True B. False
Mathematics
Answer the question.Consider the numbers 15, 
, -16, 0, 
, 
. Which are integers but not natural numbers?
A. -16, 0, 
B. -16, 0, 
C. 15, 
D. -16
Mathematics
Find the equation in standard form of an ellipse centered at the origin that passes through the given points.(-4, 0), (4, 0), (0, -9), and (0, 9)
A. 16x2 + 81y2 = 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Find an equation for the ellipse described.Foci at (-5, -2) and (1, -2); length of major axis is 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics