Two classes combine to hear a visiting speaker. The combined classes total 68 students. One class has 37 students and the other class has 43 students. How many students are taking both classes?
What will be an ideal response?
12
Mathematics
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = 2t
A. 
B. 
C. 2t
D. 
Mathematics
The rectangular coordinates of a point are given. Express the point in polar coordinates with 
and 
(0, 
)
A. (7, 90°)
B. (7, 270°)
C. (
, 90°)
D. (
, 270°)
Mathematics
Graph the quadratic equation. Identify the vertex and the intercepts.y = 2x2 + 6x - 1
A. Vertex: 
;
x-intercepts: 
, 
;
y-intercept: (0, -1)
B. Vertex: 
;
x-intercepts: 
,
;
y-intercept: (0, -1)
C. Vertex: 
;
x-intercepts: 
, 
;
y-intercept: (0, -1)
D. Vertex: 
;
x-intercepts: 
, 
;
y-intercept: (0, -1)
Mathematics
Eliminate the parameter t in the following:
?
?
A. 
, 
, 
B. 
, ,
C. 
, ,
D. 
, ,
E. 
, ,
Mathematics