Find the value of the determinant.
A. 2
B. 322
C. -122
D. -2
Answer: D
Mathematics
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Use the quadratic formula to solve the quadratic equation.x2 + x + 2 = 0
A. x = 
B. no real solution
C. x = 1 ± 
D. x = 
Mathematics
Solve for the variable.3(x + 8) = 4(x - 8)
A. x = 8 B. x = 56 C. x = -8 D. x = -56
Mathematics
Add or subtract as indicated.7.675 - 7.421
A. 0.354 B. 14.096 C. 15.096 D. 0.254
Mathematics
Provide an appropriate response.Find the mean for the following grouped data.IntervalFrequency9.5-12.5212.5-15.5315.5-18.5818.5-21.54
A. 16.47 B. 17 C. 11 D. 14
Mathematics