Simplify.
- 
÷ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the equation by the square root property. If possible, simplify radicals or rationalize denominators. Express imaginary solutions in the form 
2 = 
A. 
B. 
C. 
D. 
Mathematics
Solve using a matrix on a graphing calculator.
A. (7, 1) B. (8, 1) C. (8, 0) D. No solution
Mathematics
Simplify the expression using the imaginary unit i.
A. 30i
B. i
C. ±30
D. -30i
Mathematics
Use the variable x for the unknown. Write an equation representing the verbal sentence and solve the problem.When 
of a number is added to 20, the result is 27.
A. 
x + 27; 32
B. 
x - 20 = 27; 188
C. 
+ x = 27; 27
D. 
x + 20 = 27; 28
Mathematics