Use implicit differentiation to find dy/dx and d2y/dx2.2y - x + xy = 4
A. 
= - 
; 
= 
B. 
= 
; 
= 
C. 
= 
; 
= 
D. 
= - 
; 
= 
Answer: C
Mathematics
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Write the series in summation notation. Use the index i and let i begin at 1 in each summation.-2 + 3 - 4 + 5 - 6 + 7
A. 
B. 
C. 
D. 
Mathematics
Graph the function and determine the values of x for which the function is continuous. If the function is not continuous, determine the reason.f(x) = 
A. 
Continuous for all x
B. 
Not continuous at x = -3;
function not defined
C. 
Not continuous at x = -3;
small change
D. 
Not continuous at x = -3;
small change
Mathematics
Add.-220 + 450
A. 670 B. 230 C. -670 D. -230
Mathematics
Express the number -187,000,000 in scientific notation. ?
A. 
B. ?
C. ?
D. ?
Mathematics