Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.3 + 
+ 4 + 
+ . . . + 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve by the substitution method. If the system is inconsistent or dependent, say so. x + y = 25x + 5y = 10
A. (2, 5) B. Dependent C. (0, 0) D. (3, -1)
Mathematics
Provide an appropriate response.Graph the function y = f(x) = x2 - 6x + 5 and indicate the coordinates of the vertex and intercepts.
What will be an ideal response?
Mathematics
Multiply.(-2y + 1)(-4y2 - y + 9)
A. 8y3 - 2y2 - 19y + 9 B. 8y3 - 19y + 9 C. -2y2 - 19y + 9 D. 8y3 - 6y2 - 19y + 9
Mathematics
Find the exact value of the expression if ? = 45°. Do not use a calculator.f(?) = cos ?Find f(?).
A. -
B. 
C. 
D. 
Mathematics