Solve the system by the substitution method.x2 + y2 = 5 x - y = 1
A. {(2, 1), (-1, -2)}
B. {(2, -1), (1, -2)}
C. {(-2, -1), (-1, -2)}
D. {(-2, 1), (-1, 2)}
Answer: A
Mathematics
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Solve the differential equation.
- 
= ( ln x)5
A. y = 
x (ln x) 6 + Cx
B. y = 
x6 + Cx
C. y = x (ln x) 6 + Cx
D. y = 
(ln x) 6 + Cx
Mathematics
Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is 
where s is in feet. How long will it take the ball to fall 149 feet?
A. 2.0 sec B. 4.8 sec C. 2.2 sec D. 3.1 sec
Mathematics
Perform the indicated operation and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Determine two coterminal angles (one positive and one negative) for 
.
A. 
B. 
C. 
D. 
E. 
Mathematics