Find the coordinates of the vertex for the parabola defined by the given quadratic function.f(x) = -x2 + 10x + 2
A. (5, 27)
B. (-5, -23)
C. (10, 2)
D. (-5, -73)
Answer: A
Mathematics
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Solve the problem.Use the sequence of equations to find a pattern.1 = 11 + 3 = 41 + 3 + 5 = 9 1 + 3 + 5 + 7 = 16 . . . . . . . . . Fill in the blank to complete the equation:1 + 3 + 5 + 7 + . . . + (2n + 1) = _____
A. (n + 1)2
B. (n - 1)2
C. n2
D. 
2
Mathematics
Graph the linear inequality.0.2 x + 0.7 y ? 0.3
A. 
B. 
C. 
D. 
Mathematics
Solve.Johanna has a 
- lb mixture of cashews and peanuts that includes 
lb of cashews. How many pounds of peanuts are in the mixture?
A. 
lb
B. 
lb
C. 
lb
D. 
lb
Mathematics
Find the equivalent earnings.Arnold earns $239 a week. What is his yearly salary?
A. $11,950 B. $2390 C. $12,428 D. $1035.67
Mathematics