Write the equation of a circle with the given center and radius.Center at (0, 9); Radius 

A. (x - 9)2 + y2 = 36
B. (x + 9)2 + y2 = 36
C. x2 + (y + 9)2 = 6
D. x2 + (y - 9)2 = 6


Answer: D

Mathematics

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A. 7 c B. 14 c C. 112 c D. 28 c

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Indicate to which set(s) the number belongs from the following choices: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers. The numbers may belong to more than one set.1

A. rational numbers, real numbers B. natural numbers, whole numbers, real numbers C. natural numbers, integers, real numbers D. natural numbers, whole numbers, integers, rational numbers, real numbers

Mathematics

Simplify the expression, leaving your answer with only positive exponents. Assume that all variables represent positive numbers.x1/6 ? x5/6

A.
B. x 
C. x5/6
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Identify the given number as "Rational", "Irrational", or "Not a real number". If the number is rational, give its exact value. If the number is irrational, give a decimal approximation to the nearest thousandth.

A. Not a real number B. Rational, 5 C. Irrational, 12.500 D. Rational, 12.500

Mathematics