Question

Algebra help please,

Which graph describes the open sentence 1 ≤ n + 4 ≤ 8?

A.
http://static.k12.com/calms_media/media/212500_213000/212682/2/1bb90972cf53998126171edceb2594d71a00ce6d/MS_ALG_S1_05_03_quiz_Q2_D.gif
B.
http://static.k12.com/calms_media/media/212500_213000/212681/2/08abd7b5c20b14dcc571da4b5dfd053b6a4794e5/MS_ALG_S1_05_03_quiz_Q2_C.gif
C.
http://static.k12.com/calms_media/media/212500_213000/212680/2/78544cd3f3c57ae157d5a6
D.
http://static.k12.com/calms_media/media/212500_213000/212679/2/e050e5ce0559aed5249986d08705164a72c22750/MS_ALG_S1_05_03_quiz_Q2_A.gif
[I think C]

Answer 1

Solve the open sentence.
–1 ≤ n + 2 ≤ 6

A.n ≥ –3 and n ≤ 4

B.n ≤ 1 and n ≤ 6

C.n ≥ 3 and n ≤ –2

D. n ≤ –3 and n ≤ 2
[I think B]

Solve the open sentence. 6 < 3b OR 3b + 12 < 9
A. b < –1 OR b > –6

B. b < –1 OR b < 3

C. b < 2 OR b > –3

D. b > 2 OR b < –1
[I think A]

Answer 2

Graph the solution of the open sentence. 8 < 2b OR 2b + 15 < 5
A.
http://static.k12.com/calms_media/media/212500_213000/212681/2/08abd7b5c20b14dcc571da4b5dfd053b6a4794e5/MS_ALG_S1_05_03_quiz_Q2_C.gif

B.
http://static.k12.com/calms_media/media/212500_213000/212680/2/78544cd3f3c57ae157d5a65ef2a533af3128c4d7/MS_ALG_S1_05_03_quiz_Q2_B.gif
C.
http://static.k12.com/calms_media/media/212500_213000/212679/2/e050e5ce0559aed5249986d08705164a72c22750/MS_ALG_S1_05_03_quiz_Q2_A.gif
D.
http://static.k12.com/calms_media/media/212500_213000/212682/2/1bb90972cf53998126171edceb2594d71a00ce6d/MS_ALG_S1_05_03_quiz_Q2_D.gif
[I think C]

A compound inequality is graphed, and its graph consists of all real numbers. Which open sentence could have resulted in this solution set?

A. r < 6 or r > – 4
B. r < 6 or r < – 4
C. r > 6 or r < – 4
D. r > 6 or r > – 4
[I think A]

Answer 3

@iambatman @RedoHawk @shamil98 @dan815 please help =)