Use the quadratic formula to solve the equation.x2 - 14x + 85 = 0
A. {7 - 36i, 7 + 36i}
B. {7 - 6i, 7 + 6i}
C. {7 + 6i}
D. {1, 13}
Answer: B
You might also like to view...
The following table shows the value V, in dollars, of an automobile t years after it is purchased. t 0 2 4 6 P 17106 16328 15550 14772A: Complete a table of changes to show that the data are linear.B: Find a linear model for the data.C: Explain in practical terms the meaning of the slope of the linear function you found in part B.
What will be an ideal response?
Find the first five partial sums of the given series and determine whether the series is convergent or divergent. If it is convergent, then find its sum.
+ 
+ 
+ 
+ 
+ ...
A. 0.3333, 0.125, 0.06667, 0.041667, 0.02857; convergent; 0 B. 0.3333, 0.4583, 0.5250, 0.5667, 0.6667; divergent C. 0.3333, 0.4583, 0.5250, 0.5667, 0.5952; convergent; 0.6 D. 0.3333, 0.4583, 0.5250, 0.5667, 0.5952; convergent; 0.75
The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).x2 + y2 - 4x = 0
A. r = 4 sin ? B. r cos2 ? = 4 sin ? C. r = 4 cos ? D. r sin2 ? = 4 cos ?
Find z1z2. Write your answer in standard polar form with the argument in radians.z1 = 4i, z2 = -6 + 6i
A. 24
B. 24
C. 24
D. 24
