Solve the problem.There are currently 57 million cars in a certain country, increasing exponentially by 0.8% annually. How many years will it take for this country to have 64 million cars? Round to the nearest year.
A. 243 yr
B. 14 yr
C. 5 yr
D. 9 yr
Answer: B
Mathematics
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Use the LCD to simplify and solve.
= 
+ 
A. 
B. 
C. 
D. {0}
Mathematics
Solve the equation on the interval 0 ? ? < 2?.cos2 ? + 2 cos ? + 1 = 0
A. ?
B. 
, 
C. 2?
D. 
, 
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Find an equivalent equation in polar coordinates.x2 - y2 = 4
A. r cos 2? = 4 B. cos2? - sin2? = 4 C. cos2? - sin2? = 4r D. r2cos 2? = 4
Mathematics