Solve the equation.(x - 5)2 = 25
A. {0, 10}
B. {10}
C. {0, -10}
D. {-20}
Answer: A
Mathematics
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Which of the following is equivalent to: Twice a number increased by 7 is 42?
A. ?2n + 7. B. ?2n + 7 = 42. C. ?2(n + 7) = 42. D. ?Twice a number is equal to 35. E. ?2n = 28
Mathematics
Find the value of the missing number.
= 20
A. -95 B. -25 C. -80 D. -100
Mathematics
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics
Convert the radical expression to its rational exponent form and then simplify. Assume that all variables represent positive numbers.
A. 31/5x1/5
B. 
C. 31/4x1/4
D. 31/20x1/20
Mathematics