Solve the problem.How many gallons of a 30% alcohol solution must be mixed with 60 gallons of a 14% solution to obtain a solution that is 20% alcohol?
A. 12 gal
B. 7 gal
C. 27 gal
D. 36 gal
Answer: D
Mathematics
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Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.You are asked to change 
to a mixed number. What should be your first step?
A. Multiply 25 and 24. B. Divide 24 by 25. C. Add 25 and 24. D. Divide 25 by 24.
Mathematics
Find the equation of the hyperbola satisfying the given conditions.Vertices: (0, ±5); foci: (0, ±11)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Give the largest interval where the function increases or decreases, as requested.f(x) = 5x2 + 2; increases
A. (0, ?)
B. 
C. 
D. (-?, 0)
Mathematics