Identify the following as rational or irrational. If the number is rational, find the root exactly. If the number is irrational, approximate the number to the nearest thousandth when necessary.
A. Rational, 0.4
B. Irrational, 0.021
C. Rational, 0.021
D. Irrational, 0.4
Answer: A
Mathematics
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Write an equation of the line.
A. y = - 3x
B. y = 
x
C. y = 3x
D. y = - 
x
Mathematics
Without graphing, find the maximum value or minimum value.f(x) = 5
2 + 11
A. -11
B. 11
C. 
D. 5
Mathematics
Give the numerical coefficient and the degree of the term.-10z2
A. Coefficient: 10; degree: 2 B. Coefficient: 1; degree: 10 C. Coefficient: 2; degree: 10 D. Coefficient: -10; degree: 2
Mathematics
Solve by completing the square.x2 = 3 - 8x
A. 4 + 
B. -4 ± 2
C. -1 ± 
D. -4 ± 
Mathematics