Question

Which conjunction or disjunction is equivalent to the open sentence |a – 9| ≤ 4.

A.
a – 9 ≥ 4 and a – 9 ≤ –4

B.
a – 9 ≤ 4 or a – 9 ≥ –4

C.
a – 9 ≤ 4 and a – 9 ≤ –4

D.
a – 9 ≤ 4 and a – 9 ≥ –4

I have 4 other questions I need help with, most/all of them are screenshots though, I will fan and medal if you can help me with all of them.

Answer 1

Which conjunction or disjunction equivalent to the open sentence 4 –3|n + 2| ≥ 1?

A.
n + 2 ≥ 1 and n + 2 ≤ –1

B.
n + 2 ≤ 1 and n + 2 ≥ –1

C.
n + 2 ≤ 1 and n − 2 ≥ −1

D.
n + 2 ≥ 1 or n – 2 ≤ 1

Answer 2

3.

Solve the equation. |k + 9| = 4

A.
{–13, –5}

B.
{–5, 5}

C.
{–5, 13}

D.
{all real numbers greater than or equal to –13 and less than or equal to –5}

Answer 3

4.

Solve the inequality. 3 + |t + 4| < 10

A.
–3 < t < 11

B.
t > 3 or t < –11

C.
–11 < t < 3 <--- I think its this one.

D.
t < 3 and t > 11

Answer 4

This is the last question.

Answer 5

@dan815 @nincompoop @hartnn @triciaal can any of yall help me. I will do anything to get help from someone. I'm in a rush cause i've been trying to figure these out for like 3 hours now.

Answer 6

I think maybe the first one A

Answer 7

Wait no B

Answer 8

yes, B for 1st is correct :)
if you tell me how, I'll help you with 2nd question.

Answer 9

And I think the 3rd one is C.

Answer 10

so we are at 3rd one?


when |a| = b,

either a= b or a =-b

so what can you say
when |k+9| = 4
??

Answer 11

Well it took me longer to answer the 2nd one but I think its D.

Answer 12

I meant i think the 2nd one is D

Answer 13

Wait no I think the 3rd one is A

Answer 14

lets skip the guessing work and
actually solve the problem :)


3rd one :
when |a| = b,

either a= b or a =-b


when |k+9| = 4

k+9 = 4 or k+9 = -4


can you solve for k in k+9 = 4? ?

Answer 15

I know -5 + 9 =4 , and -13 + 9 = -4

Answer 16

right, so thats how the 3rd one is A :)

Answer 17

now 2nd one
when |a| \(\ge \)b ,
either a \(\ge \)b
or a \(\le \) -b

Answer 18

4 –3|n + 2| ≥ 1
try to isolate |n+2| from that first

Answer 19

Is it -1

Answer 20

how did you get -1?
very close because i got +1
|n+2| \(\le \) +1

Answer 21

|n+2| ≤ +1
means
n+2 ≤ +1 or n+2 >= -1
which is B

Answer 22

Am I correct on number 4?

Answer 23

And for 5 i think its C.

Answer 24

4th is correct! :)
and 5th is indeed C :)

Answer 25

I went ahead and submitted it and made an 80! They only one that was wrong was number 1, the correct answer was D.

Answer 26

oh so its an "and" instead of "or" :P
and
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