Solve the system using substitution.
A. no solution
B. (3, 6)
C. all ordered pairs that solve -2x + 2y = 2
D. (4, 5)
Answer: D
Mathematics
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Provide an appropriate response.Find the coordinates of all points (x, y) on the graph of the equation x2y - y3 = 8 where the tangent line is vertical.
A. (-
, 
), (
, 
)
B. (-
?
, -
), (
?
, 
)
C. (-
?
, 
), (
?
, 
)
D. (-
, -
), (
, 
)
Mathematics
Decide whether the following is an expression or an equation. If it is an expression, simplify it. If it is an equation, solve it.
A. Equation; 7
B. Expression; x + 7
C. Expression; 
D. Equation; 10
Mathematics
Factor.9x2 - 108x + 324
A. 9(x + 6)2 B. Prime C. 9(x - 6)2 D. (9x - 108)2
Mathematics
If ?A is an acute angle in a right triangle and sin A= 
, find cos A. Leave the answer in fraction form.
What will be an ideal response?
Mathematics