Solve.5x2 - 4y2 = 442x2 + 4y2 = 68
A. (4, -3), (4, 3)
B. (4, 3), (3, 4), (-4, -3), (-3, -4)
C. (-4, -3), (-3, -4)
D. (4, 3), (-4, 3), (4, -3), (-4, -3)
Answer: D
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Write the given number in scientific notation.0.00009569 Give the answer to four significant digits.
A. 9.569 × 10-5 B. 9.569 × 104 C. 9.569 × 105 D. 9.569 × 10-4
The argument has a true conclusion. Identify the argument as valid or invalid.
is less than 12.6 is less than 12. 
A. Invalid B. Valid
The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.(-1, 1)
A. increasing B. constant C. decreasing
Determine the growth constant k, then find all solutions of the differential equation.y' = 
A. k = 4, y = Ce4t
B. k = 
, y = Ce(1/4)t
C. k = 
, y = Ce1/4
D. k = 
, y = Ce4t