Use the discriminant to classify the graph; then use the quadratic formula to solve for y.
A) ellipse;
B) ellipse;
C) parabola;
D) parabola;
E) hyperbola;
C) parabola;
Mathematics
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Find the requested function value of ?.If sin ? = 0.7857, find sec ?.
A. 0.7873 B. 0.6186 C. 1.617 D. 1.270
Mathematics
Use differentiation to determine whether the integral formula is correct.
dx = - 
+ C
A. Yes B. No
Mathematics
Refer to the following normal curve, with mean ? and standard deviation ?.
The mean ? =
A. 62 B. 50 C. 48 D. 38 E. none of these
Mathematics
Write the equation in exponential form.log4 
= -2
A. 
2 = 4
B. 416 = 2
C. 24 = 
D. 4-2 = 
Mathematics