Solve the equation by factoring.2x2 - 7x - 4 = 0
A. x = 
or x = - 2
B. x = - 
or x = 2
C. x = - 
or x = 4
D. x = -2 or x = 4
Answer: C
Mathematics
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Name the quadrant, if any, in which the point is located.(x, y) if x < -2 and y < -2
A. II B. I C. IV D. III
Mathematics
Use implicit differentiation to find dy/dx and d2y/dx2.x2 + y2 = 5, at the point (2, 1)
A. 
= - 2; 
= -5
B. 
= - 
; 
= 0
C. 
= 2; 
= 5
D. 
= - 2; 
= 1
Mathematics
Solve the initial value problem for x as a function of t.(t2 + 4t)
= 4x + 12, x(1) = 1
A. x = 
- 3
B. x = 20t + ln 
- 3
C. x = 
- 3
D. x = 20 ln
- 3
Mathematics
Answer the following statement(s) true (T) or false (F)
The TIMSS study showed that over-emphasis of conceptual knowledge is a persistent problem in U.S. mathematics classrooms.
Mathematics