The graph of f(x) = ax2 + bx + c is given in the figure. Determine whether the discriminant is positive, negative, or zero.
A. Negative
B. Zero
C. Positive
Answer: A
Mathematics
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Solve the equation.log3 x = 5
A. x = 15 B. x= 125 C. x = 1.46 D. x = 243
Mathematics
Find the indicated rate.Tim's car will go 594.5 miles on 20.5 gallons of gasoline in city driving. What is the rate in miles per gallon?
A. 
mpg
B. 29.5 mpg
C. 29 mpg
D. 28.5 mpg
Mathematics
Eliminate the parameter.x = 3t, y = t + 7
A. y = 3x + 7 B. y = x/3 + 7 C. y = x/3 - 7 D. y = 3x - 7
Mathematics
Evaluate the following expression. (x ? ?/2+?n, where n is a whole number) ? sec5x (sec x tan x) - ?sec3x (sec x tan x) ?
A. ?sec4x tan x B. ?4 sec x tan4 x C. ?sec3x tan5x D. ?sec4x tan3 x E. ?sec3x tan3x
Mathematics