Solve the inequality. Write the answer in set-builder notation.-10 + 7z - 1 ? 6z - 20
A. {z| z > 7}
B. {
z ? -9}
C. {
z ? -9}
D. {
z < 7}
Answer: C
Mathematics
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Find the area of the shaded region.
A. 12.5 B. 7.5 C. 10 D. 5
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Solve the absolute value equation.|7x + 6| = 7
A. 
, - 
B. ?
C. - 
, 
D. 
, - 
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?Find the points of inflection and discuss the concavity of the function.
??
?
?
A. ?inflection point at 
; concave downward on 
; concave upward on 
B. ?inflection point at 
; concave upward on 
; concave downward on 
C. ??inflection point at 
; concave downward on 
; concave upward on 
D. ?inflection point at 
; concave upward on 
; concave downward on 
E. ?none of the above
Mathematics
Find the maximum value ofy.Use a graphing utility to verify your conclusion. Round your answer to three decimal places.
?
?
A. 2.828 B. 6.600 C. 0.157 D. 0.889 E. 0.943
Mathematics