Solve the proportion.
= 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Verify the identity.tan ? ? csc ? = sec ?
What will be an ideal response?
Mathematics
Solve the inequality. Give the solution set in both interval and graph forms.-2 < 2x + 4 ? 6
A. [-3, 1)
B. (-3, 1]
C. [-3, 1]
D. (-3, 1)
Mathematics
Use the Pythagorean formula to find the exact length of side b in the figure.
A. b = 
B. b = 
C. b = 
D. b = 
Mathematics
Solve the problem.There are currently 67 million cars in a certain country, increasing exponentially by 4% annually. How many years will it take for this country to have 83 million cars? Round to the nearest year.
A. 5 yr B. 69 yr C. 3 yr D. 4 yr
Mathematics