Provide an appropriate response.The graph of the equation y = -4x2 + 2x - 5 opens 
.
A. to the right
B. to the left
C. upward
D. downward
Answer: D
Mathematics
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Write the phrase as an algebraic expression. Let x represent the unknown number.Three times a number, decreased by 68
A. 3x - 68 B. x - 68 C. 3x + 68 D. 3(x - 68)
Mathematics
List the critical values of the related function. Then solve the inequality.
? 
A. No critical values; ? B. 2; [2, ?) C. 1; (-?, 1] D. No critical values; (-?, ?)
Mathematics
Solve.How long will it take for prices in the economy to double at a 9% annual inflation rate? (Round to the nearest year.)
A. 7 yr B. 8 yr C. 23 yr D. 13 yr
Mathematics
Solve the problem.John earns $13.41/hour. If he works 16 hours, how much will he earn?
A. $215.66 B. $214.57 C. $214.66 D. $214.56
Mathematics