Use substitution to determine whether the system of linear equations has no solutions, one solution, or infinitely many solutions. 2x - y = 5-4x + 2y = -18
A. Infinitely many
B. One
C. No solutions
Answer: C
Mathematics
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Evaluate the integral.
A. -coth 
+ C
B. 
csch3 
+ C
C. 5 tanh 
+ C
D. 5 coth 
+ C
Mathematics
Provide an appropriate response.When solving a system of equations, you get x + 5 = x + 5. How many solutions are there?
A. One solution B. No solutions C. Infinitely many
Mathematics
Solve the problem.Find the length of the unknown side of the right triangle, where a and b are the legs and c is the hypotenuse. a = 6, b = ?, c = 10
A. b = 10 B. b = 8 C. b = 7 D. b = 9
Mathematics
Express in terms of i.
A. -5i
B. 5i
C. -i
D. ±5
Mathematics