Find an equivalent equation in rectangular coordinates.r = 10 sin ?
A. 
= 10y
B. 
= 10x
C. x2 + y2 = 10x
D. x2 + y2 = 10y
Answer: D
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Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. 
B. 
C. 
D. 
Determine whether the argument is valid or invalid.If Nadine is working tonight, then she will not go skiing.If Nadine is not working tonight or does not go skiing, then she will read a novel.Nadine will not read a novel tonight. Therefore, Nadine is not working tonight.
A. Valid B. Invalid
Evaluate the integral. 
Give your answer in exact form.
A. 
+ 
ln(2
)
B. 
+ 
ln(7 + 4
)
C. 
+ 
ln(7 + 4
)
D. 
+ 
ln 4
Which property or identity justifies the statement?
? 
= 
? 
A. Multiplication Property B. Multiplicative Identity C. Commutative Property D. Associative Property