Rewrite the expressions with rational exponents as radical expressions, and then solve the equation.(2x + 5)1/2 - (x - 2)1/2 = 3
A. {2}
B. {3, 8}
C. {-2}
D. {2, 38}
Answer: D
Mathematics
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Solve the problem.A rectangular garden has dimensions of 23 feet by 16 feet. A gravel path of equal width is to be built around the garden. How wide can the path be if there is enough gravel for 490 square feet?
A. 7 ft B. 7.5 ft C. 5 ft D. 6 ft
Mathematics
Give a verbal description of the subset of real numbers represented by the following inequality and sketch the subset on the real number line. ? x ? 3 ?
A. x ? 3 denotes the set of all real numbers less than or equal to 3.
B. x ? 3 denotes the set of all real numbers greater than or equal to 3.
C. x ? 3 denotes the set of all real numbers less than or equal to 3.
D. x > 3 denotes the set of all real numbers greater than 3.
E. x ? 3 denotes the set of all real numbers less than or equal to 3.
Mathematics
Solve the problem.
=
A. 55 B. 10 C. 34 D. 21 E. none of these
Mathematics
Find the roots of the equations.0.95x + 0.99(16 - x) = 15.52
A. {-8} B. {8} C. {0.08} D. {-0.08}
Mathematics