Use the definition of equality of complex numbers to find the real numbers x and y such that the equation is true.x - 
= 5 + yi
A. x = 5, y = 10
B. x = -5, y = 10
C. x = -5, y = -10
D. x = 5, y = -10
Answer: D
Mathematics
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Graph the function.y = 2 cos x
A. 
B. 
C. 
D. 
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Give the maximum number of zeros the polynomial function may have. Use Descarte's Rule of Signs to determine how many positive and how many negative zeros it may have.f(x) = -2x5 + x3 - x2 + 3
A. 5; 2 or 0 positive zeros; 3 or 1 negative zeros B. 5; 2 or 0 positive zeros; 2 or 0 negative zeros C. 5; 3 or 1 positive zeros; 2 or 0 negative zeros D. 5; 3 or 1 positive zeros; 3 or 1 negative zeros
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What are the slope and the y-intercept of y = ?2x ? 6 ?
What will be an ideal response?
Mathematics
Write the set using interval notation.{x| x > 1}
A. (?, 1) B. (1, ?) C. (-?, 1) D. (1, -?)
Mathematics