The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r = cos ?
A. (x + y)2 = y
B. x2 + y2 = x
C. x2 + y2 = y
D. (x + y)2 = x
Answer: B
Mathematics
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Find the exact value of the expression without using a calculator.sin 
cos 
+ cos 
sin 
A. 
B. 
C. 
D. 1
Mathematics
Add and simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics
Plot the point on the rectangular coordinate system provided. Write the corresponding letter as your answer.
(3, 5)
A. K B. L C. I D. D
Mathematics
Factor completely. If the polynomial is prime, state this.p5- 625p
A. p(p + 5)2(p - 5)2 B. Prime C. p(p2 + 25)(p + 5)(p - 5) D. p(p2 + 25)(p2 - 25)
Mathematics