Use the indicated x-values on the graph of 
to determine intervals over which the graph is concave up.
?
A. 
and 
B. 
C. 
D. 
E. 
and 
Answer: A
Mathematics
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Graph the linear equation using the slope and y-intercept.y = - 
x + 5
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Ellen wishes to mix candy worth $1.66 per pound with candy worth $2.88 per pound to form 15 pounds of a mixture worth $2.31 per pound. How many pounds of the more expensive candy should she use?
A. 8 pounds B. 9 pounds C. 13 pounds D. 7 pounds
Mathematics
Find pk + 1 for the given pk.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Round the number to the nearest hundred.1,316
A. 1,320 B. 1,350 C. 1,300 D. 13 E. 1,400
Mathematics