Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.x - y + z = -3x + y + z = 3x + y - z = -5
A. (4, -4, 3)
B. (-4, 3, 4)
C. (-4, 4, 3)
D. No solution
Answer: B
Mathematics
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Use Euler's method to find y-values of the solution for the given values of x and ?x, if the curve of the solution passes through the given point. 
= 1 + 
; x = 2 to x = 3.5; ?x = 0.5; (2, -3)
A. 
B. 
C. 
D. 
Mathematics
Verify the identity.
= cos 2x
What will be an ideal response?
Mathematics
Evaluate 
, 
, and - 
for the given values.a = 20 , and b = 2
A. -10; -10; 10 B. -10; -10; -10 C. -20; 10; 20 D. 10; 10; 10
Mathematics
Solve.A town's population in 1976 was 130,533. By the year 2000 it had increased by 26,008. How many people lived there in 2000?
A. 157,541 people B. 155,541 people C. 156,641 people D. 156,541 people
Mathematics