Simplify the expression.[26 - (4 + 6) ÷ 2] - [1 + 15 ÷ 3]
A. 12
B. 22
C. 15
D. 10
Answer: C
Mathematics
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Find the roots of the given equation by inspection.(x - 4)(x2 - 49)
A. -7, 4, 7 B. 4, 7 C. -7, 7 D. -4, 4, 7
Mathematics
Multiply the complex numbers and simplify powers of i.(9 - 3i)(2 + 4i)
A. 30 - 30i B. -12i2 + 30i + 18 C. 6 - 42i D. 30 + 30i
Mathematics
Provide an appropriate response.Subtract the fractions and reduce: 
- 
A. 
B. 
C. 
D. 
Mathematics
Find the center and radius of the circle.x2 + y2 + 18x - 14y + 94 = 0
A. (-7, 9); r = 36 B. (9, -7); r = 36 C. (7, -9); r = 6 D. (-9, 7); r = 6
Mathematics