All categories

2 years ago

Look at this inequality: 12−4x ≤ 20

Mathematics

2 answers:

Softa [21]2 years ago

5 0

The answer is D
Hope this helps

SSSSS [86.1K]2 years ago

4 0

Answer: The last line is the answer

12 - 4x <u><</u> 20

20 - 12 = 8

-4x = 8

-4/4 = 8/-4

x = -2

New inequality: x <u>></u> -2

Step-by-step explanation:

You might be interested in

If this particular arithmetic sequence, a7=34 and a15=74. What is the value of a21

Ilya [14]

This is an arithmetic sequence, meaning, to get the next term, you simply add some value to the current one, namely the "common difference" "d".

now, we know the 17th term is 34, let's go to the 15term then

34 + d
34 + d + d
34 + d + d + d
34 + d + d + d + d
34 + d + d + d + d + d
34 + d + d + d + d + d + d
34 + d + d + d + d + d + d + d
34 + d + d + d + d + d + d + d + d

now, notice, we got to the 15th term, which is 34 + d + d + d + d + d + d + d + d, or namely 34 + 8d, it just so happen we know is 74, therefore,

$\bf 34+8d=74\implies 8d=40\implies d=\cfrac{40}{8}\implies \boxed{d=5}$

ok, now that we know what the common difference is, let's find the first term in the sequence using the 7th term of 34,

$\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
n=7\\
d=5\\
a_7=34
\end{cases}
\\\\\\
a_7=a_1+(7-1)5\implies 34=a_1+(7-1)5
\\\\\\
34=a_1+30\implies \boxed{4=a_1}$

and now let's use those 2 found folks, to get the 21st term,

$\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
a_1=4\\
d=5\\
n=21
\end{cases}
\\\\\\
a_{21}=4+(21-1)5\implies a_{21}=4+100\implies a_{21}=104$

3 0

2 years ago

Solve for x please 2/3 x+1 =27

romanna [79]

2/3 x + 1 = 27

subtract 1 from each side

2/3 x = 26

multiply by 3/2

3/2 * 2/3 x = 26 * 3/2

x = 39

7 0

3 years ago

Answer for points ig I’ll thank it

nydimaria [60]

Answer:

thanks

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Please help me with this math question.

agasfer [191]

It's D

Because a sphere is round, it's a 3D circle.

Hope this helps!

8 0

2 years ago

The unit circle edgenunity answers

lawyer [7]

Answer:

go to The unit circle edgenunity on quizlet it gives you the answers

Step-by-step explanation:

can I get brainliest

7 0

3 years ago