Rationalize the denominator of the expression. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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In a right triangle, if angle A is 30 degrees, what are the other two angles?
a. 75 degrees, 75 degrees b. 60 degrees, 90 degrees c. 30 degrees, 120 degrees d. 45 degrees, 105 degrees e. 70 degrees, 80 degrees
Mathematics
Solve. Round to the nearest tenth, if necessary.8,159 is 127% of what number?
A. 642,440.945 B. 6,424.4 C. 64.2 D. 642.4
Mathematics
Factor completely. If the polynomial is prime, then state this as your answer.a2 + 11a + 18
A. (a - 9)(a + 2) B. (a + 9)(a + 2) C. (a - 9)(a + 1) D. prime
Mathematics
Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in the ordered pair form.
A. {(0, -12)} B. {(-12, 0)} C. {(0, 12)} D. {(12, 0)}
Mathematics