Use a graphing calculator to solve the system. Express solutions with approximations to the nearest thousandth.
x + 
y - 3 = 0
x - y - 
= 0
A. ?
B. {(1.581, 0.289)}
C. {(1.099, 0.547)}
D. {(1.670, 0.443)}
Answer: B
Mathematics
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Use implicit differentiation to find dy/dx and d2y/dx2.x3/5 + y3/5 = 7
A. 
= - 
; 
= 
B. 
= 
; 
= - 
C. 
= 
; 
= - 
D. 
= - 
; 
= 
Mathematics
Evaluate the expression for the given values of the variables. 
for t = 81.9
A. 0.09 B. 23.4 C. 74.9 D. 11.7
Mathematics
The point 
is on the terminal side of an angle in standard position. Determine the exact value of 
.
A. 
B. 
C. 
D. 
E. 
Mathematics
Find all cube roots of the complex number. Leave answers in trigonometric form.-125i
A. 5 cis 90°, 5 cis °210, 5 cis 330° B. 5 cis 30°, 5 cis °60, 5 cis 90° C. 5 cis 90°, 5 cis °180, 5 cis 270° D. 5 cis °210, , 5 cis 270°, 5 cis 330°
Mathematics