Find the sum.- 
+ 
A. - 
B. - 
C. - 
D. 
Answer: A
Mathematics
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Solve the radical equation.
= x
A. {-2, 9}
B. {9}
C. 
D. no real solution
Mathematics
Solve.There are currently 57 million cars in a certain country, decreasing by 0.5% annually. How many years will it take for this country to have 39 million cars? Round to the nearest year.
A. 578 yr B. 76 yr C. 5 yr D. 36 yr
Mathematics
Provide an appropriate response.Explain why negative numbers do not have logarithms.
What will be an ideal response?
Mathematics
Solve the equation by using sum-to-product identities in the interval [0, 2?).cos 2x - cos 4x = 0
A. 
B. 
C. 
D. 
Mathematics