Solve the equation.
= 
A. {4}
B. {-7}
C. {25}
D. {-25}
Answer: C
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Solve the problem.In how many ways can 4 people be chosen and arranged in a straight line, if there are 12 people from whom to choose?
A. 48 B. 19,958,400 C. 11,880 D. 39,916,800
Completely factor the polynomial or state that the polynomial is prime.(x + 6)2 - 7(x + 6) + 10
A. (x2 - 6x + 2)(x2 - 6x + 5) B. (x + 8)(x + 11) C. (x2 + 6x - 2)(x2 + 6x - 5) D. (x + 4)(x + 1)
Write the equation in terms of a rotated x'y'-system using ?, the angle of rotation. Write the equation involving x' and y' in standard form.xy +16 = 0; ? = 45°
A. 
+ 
= 1
B. 
- 
= 1
C. y'2 = -32x'
D. 
+ 
= 1
Translate the sentence into an equation using the variable x.The sum of a number and 4 is 12.
A. x + 4 = 12 B. x + 12 = 4 C. 4x = 12 D. x = 4 + 12