Decide whether or not the ordered pair is a solution of the system.(2, -6)
A. Yes
B. No
Answer: A
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Solve.Amy teaches Chinese lessons for $95 per student for a 6-week session. From one group of students, she collects $2,850. How many students are in the group?
A. 32 students B. 34 students C. 30 students D. 20 students
Use DeMoivre's Theorem to write the expression in rectangular form.
4
A. -4i B. -4 C. 4i D. 4
Solve the problem.Suppose a cold front is passing through the United States at noon with a shape described by the function 
where each unit represents 100 miles. 
Missouri is located at 
and the positive y-axis points north.N
/> 
SSuppose the front moves south 340 miles and west 120 miles and maintains its shape. Give the equation for the new front and plot the new position of the front.
A. y = - 
(x + 1.2)2 - 3.4
| N |
| S |
B. y =
(x - 1.2)2 + 3.4| N |
| S |
C. y =
(x - 1.2)2 - 3.4| N |
| S |
D. y =
(x + 1.2)2 - 3.4| N |
| S |
Find all the first order partial derivatives for the following function.f(x, y, z) = xz
A. 
= z
; 
= 
; 
= x
B. 
= z
; 
= 
; 
= x
C. 
= z
; 
= - 
; 
= x
D. 
= z
; 
= - 
; 
= x