Find the axis of symmetry of the given function.f(x) = -2x2 + 13x + 1
A. x = - 
B. x = 
C. x = 
D. x = - 
Answer: B
Mathematics
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Simplify the expression.10x + 7(5 - 9x)
A. 53x - 35 B. -53x + 35 C. 1x + 35 D. 73x - 35
Mathematics
Solve the problem.Paul Nagel invested some money at 3.5% simple interest and $7000 more than that amount at 4.5% simple interest. After 1 year, his total interest from the two accounts was $1275. How much did he invest at each rate?
A. $12,000 at 3.5%; $20,000 at 4.5% B. $12,000 at 3.5%; $19,000 at 4.5% C. $13,000 at 3.5%; $19,000 at 4.5% D. $13,000 at 3.5%; $18,000 at 4.5%
Mathematics
Add. Do not use a number line except as a check.411 + (-40) + 42 + (-325) + (-40) + 455
A. -1313 B. 503 C. 583 D. -503
Mathematics
Use the quadratic formula to solve the equation.x2 + 18x + 70 = 0
A. -9 - 
, -9 + 
B. -18 + 
C. 9 - 
, 9 + 
D. 9 + 
Mathematics