Use a calculator to approximate the expression to three decimal places. If the expression is not a real number, state this.
A. -79.000
B. -8.888
C. 8.888
D. not a real number
Answer: D
Mathematics
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Simplify the radical expression. Assume that all variables represent positive real numbers.
A. -w4
B. w4
C. 2
D. w6
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Find a rectangular equation for the plane curve defined by the parametric equations.x = et, y = e2t, for t in (-?, ?)
A. y = ln x B. y = 2x C. x = ln y D. y = x2
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Solve the problem.One number is 2 less than a second number. Twice the second number is 17 less than 5 times the first. Find the two numbers.
A. 6 and 8 B. -9 and -7 C. 7 and 9 D. 8 and 10
Mathematics
Find the slope and y-intercept of the line.x + y = -5
A. slope = 0; y-intercept = -5 B. slope = 1; y-intercept = -5 C. slope = -1; y-intercept = -5 D. slope = -1; y-intercept = 5
Mathematics