Write a matrix equation equivalent to the system of equations. -5x + 8y = -6-9x + 9y = 5
A. 
=
B. 
=
C. 
= 
D.
  = |
Answer: D
Mathematics
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Find all the first order partial derivatives for the following function.f(x, y, z) = 
A. 
= - 
; 
= - 
; 
= - 
B. 
= 
; 
= 
; 
= 
C. 
= 
; 
= 
; 
= 
D. 
= - 
; 
= - 
; 
= - 
Mathematics
Determine whether the given series is convergent or divergent.
 Figure 3.png)
Mathematics
Find the exact value of the expression if ? = 45°. Do not use a calculator.g(?) = cos ?Find [g(?)]2.
A. 
B. 
C. 2
D. - 
Mathematics
Write a system of equations for the problem, and then solve the system.Two cars leave a city and head in the same direction. After 5 hours, the faster car is 35 miles ahead of the slower car. The slower car has traveled 255 miles. Find the speeds of the two cars.
A. 44 mph and 51 mph B. 70 mph and 77 mph C. 53 mph and 60 mph D. 51 mph and 58 mph
Mathematics