Determine whether the equation defines y as a function of x. y2 = 3 - x2
A. function
B. not a function
Answer: B
Mathematics
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Solve the system of equations.7x + 7y + z = 1 x + 8y + 8z = 89x + y + 9z = 9
A. (0, 0, 1) B. (-1, 1, 1) C. (1, -1, 1) D. (0, 1, 0)
Mathematics
Use an Euler diagram to determine whether the argument is valid or invalid.Some investments are risky.Real estate is an investment.Therefore, Real estate is risky.
A. valid B. invalid
Mathematics
Write as an equivalent decimal. If a repeating decimal is obtained, use notation such as 0.
, 0.
, or 0.
.1
A. 1.45
B. 1.4
C. 1.
D. 1.
Mathematics
Find the reciprocal.3
A. 1
B. 3
C. 
D. 
Mathematics