For the given equation, determine the values of a, b, and c, the direction in which the parabola opens, and the y-intercept.y = -2x2 + 6
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.Anne and Nancy use a metal alloy that is 20% copper to make jewelry. How many ounces of a 14% alloy and a 24% alloy must be mixed to form 100 ounces of the desired alloy?
A. 30 at 14% and 70 at 24% B. 60 at 14% and 40 at 24% C. 40 at 14% and 60 at 24% D. 70 at 14% and 30 at 24%
Mathematics
Solve the equation.4x = 64
A. {3} B. {16} C. {2} D. {4}
Mathematics
Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = -9x2 - 2x - 3
A. vertex 
intercept (0, 3) 
B. vertex 
intercept (0, 3) 
C. vertex 
intercept (0, -3)
D. vertex 
intercept (0, -3) 
Mathematics
Write a general term an for the sequence. Assume that n begins with 1.
, - 
, 
, - 
, . . .
A. an = 
B. an = 
+ 6
C. an = 
+ 6
D. an = 
Mathematics