Find an equivalent equation in rectangular coordinates.r(cos ? - sin ?) = 3
A. x - y = 9
B. x - y = 3
C. 
(x - y) = 3
D. x + y = 3
Answer: B
Mathematics
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Solve.A prime number is an emirp if it becomes a different prime number when its digits are reversed. Determine whether or not the prime number 41 is an emirp.
A. Yes B. No
Mathematics
Make the conversion indicated. Round your result to the nearest tenth.-29°C = 
°F
A. -20.2 B. -109.8 C. -33.9 D. 15.9
Mathematics
Write the answer to the problem as an algebraic expression.Susan has 7 cats. She gave s to her lonely aunt. How many does she have left?
A. 7 - s cats B. s + 7 cats C. s - 7 cats D. 7 + s cats
Mathematics
Find the average rate of change of the function as x changes from a to b.h(x) = 
; a = -2, b = 4
A. 1
B. 0
C. 
D. - 
Mathematics